/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 08:59:54,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 08:59:54,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 08:59:54,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 08:59:54,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 08:59:54,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 08:59:54,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 08:59:54,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 08:59:54,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 08:59:54,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 08:59:54,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 08:59:54,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 08:59:54,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 08:59:54,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 08:59:54,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 08:59:54,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 08:59:54,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 08:59:54,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 08:59:54,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 08:59:54,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 08:59:54,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 08:59:54,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 08:59:54,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 08:59:54,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 08:59:54,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 08:59:54,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 08:59:54,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 08:59:54,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 08:59:54,320 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 08:59:54,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 08:59:54,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 08:59:54,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 08:59:54,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 08:59:54,356 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 08:59:54,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 08:59:54,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 08:59:54,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 08:59:54,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 08:59:54,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 08:59:54,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 08:59:54,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 08:59:54,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 08:59:54,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 08:59:54,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 08:59:54,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 08:59:54,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 08:59:54,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 08:59:54,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 08:59:54,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 08:59:54,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 08:59:54,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:59:54,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 08:59:54,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 08:59:54,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 08:59:54,362 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 08:59:54,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 08:59:54,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 08:59:54,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 08:59:54,712 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 08:59:54,712 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 08:59:54,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl [2021-03-25 08:59:54,714 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl' [2021-03-25 08:59:54,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 08:59:54,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 08:59:54,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 08:59:54,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 08:59:54,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 08:59:54,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 08:59:54,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 08:59:54,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 08:59:54,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 08:59:54,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... [2021-03-25 08:59:54,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 08:59:54,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 08:59:54,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 08:59:54,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 08:59:54,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:59:54,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-25 08:59:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-25 08:59:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-25 08:59:54,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-25 08:59:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-25 08:59:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-25 08:59:54,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 08:59:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 08:59:54,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 08:59:54,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 08:59:55,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 08:59:55,191 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-03-25 08:59:55,192 INFO L202 PluginConnector]: Adding new model chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:59:55 BoogieIcfgContainer [2021-03-25 08:59:55,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 08:59:55,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 08:59:55,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 08:59:55,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 08:59:55,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:59:54" (1/2) ... [2021-03-25 08:59:55,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13127448 and model type chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 08:59:55, skipping insertion in model container [2021-03-25 08:59:55,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:59:55" (2/2) ... [2021-03-25 08:59:55,198 INFO L111 eAbstractionObserver]: Analyzing ICFG chromosome-opt-symm.wvr.bpl [2021-03-25 08:59:55,202 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 08:59:55,204 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 08:59:55,205 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 08:59:55,254 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 08:59:55,277 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 08:59:55,315 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 08:59:55,315 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 08:59:55,315 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 08:59:55,315 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 08:59:55,316 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 08:59:55,316 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 08:59:55,316 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 08:59:55,316 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 08:59:55,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 52 flow [2021-03-25 08:59:55,357 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-03-25 08:59:55,358 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:59:55,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 16 events. 2/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-25 08:59:55,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 18 transitions, 52 flow [2021-03-25 08:59:55,365 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2021-03-25 08:59:55,366 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:55,374 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-25 08:59:55,378 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-25 08:59:55,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 40 flow [2021-03-25 08:59:55,392 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-03-25 08:59:55,393 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:59:55,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 14 events. 2/14 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-03-25 08:59:55,395 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 08:59:55,491 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-25 08:59:55,491 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 08:59:55,493 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-03-25 08:59:55,504 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-03-25 08:59:55,504 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:59:55,505 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:55,505 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:55,506 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:55,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:55,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1541524741, now seen corresponding path program 1 times [2021-03-25 08:59:55,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:55,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436299509] [2021-03-25 08:59:55,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:55,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:55,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 08:59:55,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:59:55,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:55,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436299509] [2021-03-25 08:59:55,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:55,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:55,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980716691] [2021-03-25 08:59:55,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:55,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:55,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:55,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:55,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 21 [2021-03-25 08:59:55,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 11 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:55,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:55,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 21 [2021-03-25 08:59:55,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:55,684 INFO L129 PetriNetUnfolder]: 7/21 cut-off events. [2021-03-25 08:59:55,684 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 08:59:55,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 21 events. 7/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 29 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 29. Up to 6 conditions per place. [2021-03-25 08:59:55,685 INFO L132 encePairwiseOnDemand]: 17/21 looper letters, 5 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2021-03-25 08:59:55,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 58 flow [2021-03-25 08:59:55,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:55,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2021-03-25 08:59:55,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2021-03-25 08:59:55,695 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 69 transitions. [2021-03-25 08:59:55,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 69 transitions. [2021-03-25 08:59:55,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:55,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 69 transitions. [2021-03-25 08:59:55,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:55,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:55,702 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:55,703 INFO L185 Difference]: Start difference. First operand has 16 places, 11 transitions, 34 flow. Second operand 4 states and 69 transitions. [2021-03-25 08:59:55,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 58 flow [2021-03-25 08:59:55,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 50 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 08:59:55,707 INFO L241 Difference]: Finished difference. Result has 17 places, 13 transitions, 47 flow [2021-03-25 08:59:55,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=47, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2021-03-25 08:59:55,709 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2021-03-25 08:59:55,709 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:55,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-25 08:59:55,709 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-25 08:59:55,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 13 transitions, 47 flow [2021-03-25 08:59:55,714 INFO L129 PetriNetUnfolder]: 4/16 cut-off events. [2021-03-25 08:59:55,714 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 08:59:55,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 16 events. 4/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2021-03-25 08:59:55,714 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-25 08:59:55,928 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:59:55,928 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:59:55,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 219 [2021-03-25 08:59:55,930 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 41 flow [2021-03-25 08:59:55,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:55,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:55,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:55,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 08:59:55,931 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:55,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1583311973, now seen corresponding path program 2 times [2021-03-25 08:59:55,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:55,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153187293] [2021-03-25 08:59:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:55,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:55,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 08:59:55,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:55,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:59:56,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153187293] [2021-03-25 08:59:56,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:56,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:56,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892262390] [2021-03-25 08:59:56,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:56,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:56,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:56,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:56,005 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 22 [2021-03-25 08:59:56,006 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 12 transitions, 41 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,006 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:56,006 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 22 [2021-03-25 08:59:56,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:56,044 INFO L129 PetriNetUnfolder]: 7/23 cut-off events. [2021-03-25 08:59:56,045 INFO L130 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2021-03-25 08:59:56,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 23 events. 7/23 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 39. Up to 9 conditions per place. [2021-03-25 08:59:56,045 INFO L132 encePairwiseOnDemand]: 17/22 looper letters, 5 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2021-03-25 08:59:56,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 70 flow [2021-03-25 08:59:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-25 08:59:56,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2021-03-25 08:59:56,048 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:56,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,050 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,050 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 41 flow. Second operand 4 states and 70 transitions. [2021-03-25 08:59:56,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 70 flow [2021-03-25 08:59:56,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 16 transitions, 62 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-25 08:59:56,052 INFO L241 Difference]: Finished difference. Result has 19 places, 14 transitions, 60 flow [2021-03-25 08:59:56,052 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=60, PETRI_PLACES=19, PETRI_TRANSITIONS=14} [2021-03-25 08:59:56,053 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2021-03-25 08:59:56,054 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:56,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-25 08:59:56,054 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-25 08:59:56,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 60 flow [2021-03-25 08:59:56,060 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-03-25 08:59:56,060 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 08:59:56,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 17 events. 4/17 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 24. Up to 4 conditions per place. [2021-03-25 08:59:56,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-25 08:59:56,260 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 08:59:56,260 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 08:59:56,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206 [2021-03-25 08:59:56,261 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 54 flow [2021-03-25 08:59:56,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,261 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:56,261 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:56,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 08:59:56,262 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:56,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1525824884, now seen corresponding path program 1 times [2021-03-25 08:59:56,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:56,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917376889] [2021-03-25 08:59:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:59:56,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:59:56,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917376889] [2021-03-25 08:59:56,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:56,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:56,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976696444] [2021-03-25 08:59:56,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:56,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:56,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:56,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:56,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-25 08:59:56,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:56,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-25 08:59:56,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:56,381 INFO L129 PetriNetUnfolder]: 7/26 cut-off events. [2021-03-25 08:59:56,382 INFO L130 PetriNetUnfolder]: For 36/40 co-relation queries the response was YES. [2021-03-25 08:59:56,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 26 events. 7/26 cut-off events. For 36/40 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 48 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 53. Up to 11 conditions per place. [2021-03-25 08:59:56,383 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2021-03-25 08:59:56,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 87 flow [2021-03-25 08:59:56,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-25 08:59:56,387 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-25 08:59:56,387 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:56,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,393 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,393 INFO L185 Difference]: Start difference. First operand has 18 places, 13 transitions, 54 flow. Second operand 4 states and 70 transitions. [2021-03-25 08:59:56,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 87 flow [2021-03-25 08:59:56,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 74 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 08:59:56,396 INFO L241 Difference]: Finished difference. Result has 21 places, 15 transitions, 66 flow [2021-03-25 08:59:56,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=66, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2021-03-25 08:59:56,397 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 5 predicate places. [2021-03-25 08:59:56,397 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:56,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-25 08:59:56,398 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-25 08:59:56,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 15 transitions, 66 flow [2021-03-25 08:59:56,405 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-25 08:59:56,405 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 08:59:56,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 24 events. 5/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 35. Up to 8 conditions per place. [2021-03-25 08:59:56,405 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-25 08:59:56,406 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:59:56,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:59:56,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 08:59:56,407 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 66 flow [2021-03-25 08:59:56,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:56,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:56,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 08:59:56,408 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:56,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:56,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1515270503, now seen corresponding path program 1 times [2021-03-25 08:59:56,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:56,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866296625] [2021-03-25 08:59:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:59:56,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:59:56,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866296625] [2021-03-25 08:59:56,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:56,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:56,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404778284] [2021-03-25 08:59:56,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:56,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:56,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:56,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:56,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-25 08:59:56,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 15 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:56,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-25 08:59:56,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:56,471 INFO L129 PetriNetUnfolder]: 10/40 cut-off events. [2021-03-25 08:59:56,472 INFO L130 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2021-03-25 08:59:56,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 40 events. 10/40 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 114 event pairs, 1 based on Foata normal form. 2/33 useless extension candidates. Maximal degree in co-relation 73. Up to 13 conditions per place. [2021-03-25 08:59:56,472 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 4 changer transitions 0/19 dead transitions. [2021-03-25 08:59:56,472 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 98 flow [2021-03-25 08:59:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-25 08:59:56,474 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-25 08:59:56,474 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:56,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,475 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,475 INFO L185 Difference]: Start difference. First operand has 21 places, 15 transitions, 66 flow. Second operand 4 states and 71 transitions. [2021-03-25 08:59:56,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 98 flow [2021-03-25 08:59:56,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 94 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 08:59:56,477 INFO L241 Difference]: Finished difference. Result has 25 places, 18 transitions, 91 flow [2021-03-25 08:59:56,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=91, PETRI_PLACES=25, PETRI_TRANSITIONS=18} [2021-03-25 08:59:56,477 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 9 predicate places. [2021-03-25 08:59:56,477 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:56,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 18 transitions, 91 flow [2021-03-25 08:59:56,478 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 18 transitions, 91 flow [2021-03-25 08:59:56,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 18 transitions, 91 flow [2021-03-25 08:59:56,483 INFO L129 PetriNetUnfolder]: 8/36 cut-off events. [2021-03-25 08:59:56,483 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-03-25 08:59:56,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 36 events. 8/36 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 102 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 65. Up to 12 conditions per place. [2021-03-25 08:59:56,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-25 08:59:56,485 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:59:56,485 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:59:56,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 08:59:56,486 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 91 flow [2021-03-25 08:59:56,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:56,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:56,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 08:59:56,486 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:56,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:56,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1570382679, now seen corresponding path program 2 times [2021-03-25 08:59:56,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:56,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491349973] [2021-03-25 08:59:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:59:56,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:59:56,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491349973] [2021-03-25 08:59:56,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:56,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:56,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142001127] [2021-03-25 08:59:56,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:56,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:56,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:56,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:56,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-25 08:59:56,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:56,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-25 08:59:56,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:56,550 INFO L129 PetriNetUnfolder]: 9/35 cut-off events. [2021-03-25 08:59:56,550 INFO L130 PetriNetUnfolder]: For 47/53 co-relation queries the response was YES. [2021-03-25 08:59:56,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 35 events. 9/35 cut-off events. For 47/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 93 event pairs, 1 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 79. Up to 13 conditions per place. [2021-03-25 08:59:56,551 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 1/19 dead transitions. [2021-03-25 08:59:56,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 115 flow [2021-03-25 08:59:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:56,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-25 08:59:56,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-25 08:59:56,552 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:56,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-25 08:59:56,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,553 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,553 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 91 flow. Second operand 4 states and 70 transitions. [2021-03-25 08:59:56,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 115 flow [2021-03-25 08:59:56,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 19 transitions, 111 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-25 08:59:56,555 INFO L241 Difference]: Finished difference. Result has 30 places, 18 transitions, 100 flow [2021-03-25 08:59:56,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2021-03-25 08:59:56,555 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 14 predicate places. [2021-03-25 08:59:56,555 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:56,555 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 18 transitions, 100 flow [2021-03-25 08:59:56,556 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 18 transitions, 100 flow [2021-03-25 08:59:56,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 100 flow [2021-03-25 08:59:56,560 INFO L129 PetriNetUnfolder]: 7/30 cut-off events. [2021-03-25 08:59:56,560 INFO L130 PetriNetUnfolder]: For 31/34 co-relation queries the response was YES. [2021-03-25 08:59:56,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 30 events. 7/30 cut-off events. For 31/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2021-03-25 08:59:56,560 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 08:59:56,561 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:59:56,561 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:59:56,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 08:59:56,562 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 100 flow [2021-03-25 08:59:56,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:56,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:56,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 08:59:56,563 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:56,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1470413624, now seen corresponding path program 2 times [2021-03-25 08:59:56,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:56,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308813478] [2021-03-25 08:59:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:59:56,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 08:59:56,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308813478] [2021-03-25 08:59:56,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:59:56,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 08:59:56,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518357010] [2021-03-25 08:59:56,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 08:59:56,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:56,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 08:59:56,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 08:59:56,641 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-25 08:59:56,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:56,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-25 08:59:56,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:56,676 INFO L129 PetriNetUnfolder]: 9/28 cut-off events. [2021-03-25 08:59:56,677 INFO L130 PetriNetUnfolder]: For 60/66 co-relation queries the response was YES. [2021-03-25 08:59:56,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 28 events. 9/28 cut-off events. For 60/66 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 82. Up to 14 conditions per place. [2021-03-25 08:59:56,677 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 4 changer transitions 1/20 dead transitions. [2021-03-25 08:59:56,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 20 transitions, 132 flow [2021-03-25 08:59:56,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 08:59:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 08:59:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-25 08:59:56,678 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-25 08:59:56,678 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:56,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-25 08:59:56,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,680 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,680 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 100 flow. Second operand 4 states and 71 transitions. [2021-03-25 08:59:56,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 20 transitions, 132 flow [2021-03-25 08:59:56,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 118 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 08:59:56,681 INFO L241 Difference]: Finished difference. Result has 29 places, 19 transitions, 103 flow [2021-03-25 08:59:56,682 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2021-03-25 08:59:56,682 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 13 predicate places. [2021-03-25 08:59:56,682 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:56,682 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 103 flow [2021-03-25 08:59:56,682 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 103 flow [2021-03-25 08:59:56,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 19 transitions, 103 flow [2021-03-25 08:59:56,685 INFO L129 PetriNetUnfolder]: 8/26 cut-off events. [2021-03-25 08:59:56,685 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 08:59:56,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 26 events. 8/26 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 58. Up to 9 conditions per place. [2021-03-25 08:59:56,686 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-25 08:59:56,687 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:59:56,687 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:59:56,687 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 08:59:56,688 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 103 flow [2021-03-25 08:59:56,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:56,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:56,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:56,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 08:59:56,688 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:56,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:56,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1416993665, now seen corresponding path program 1 times [2021-03-25 08:59:56,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:56,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499191123] [2021-03-25 08:59:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:56,767 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-03-25 08:59:56,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 08:59:56,791 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-03-25 08:59:56,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:59:56,803 INFO L142 QuantifierPusher]: treesize reduction 12, result has 71.4 percent of original size [2021-03-25 08:59:56,804 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-03-25 08:59:56,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 08:59:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:56,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499191123] [2021-03-25 08:59:56,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192581288] [2021-03-25 08:59:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:59:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:56,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 08:59:56,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:59:56,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:56,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:56,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:59:56,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:56,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:59:56,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,922 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 08:59:56,923 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 08:59:56,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:56,925 INFO L142 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-03-25 08:59:56,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:59:56,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:56,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:56,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 08:59:56,934 INFO L142 QuantifierPusher]: treesize reduction 158, result has 34.2 percent of original size [2021-03-25 08:59:56,936 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-25 08:59:56,938 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-25 08:59:56,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 08:59:56,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:59:56,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 08:59:56,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 08:59:56,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 08:59:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 08:59:56,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:56,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,993 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 08:59:56,993 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:56,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:56,997 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 08:59:56,997 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:56,998 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,001 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-25 08:59:57,001 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:57,002 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,004 INFO L142 QuantifierPusher]: treesize reduction 55, result has 54.5 percent of original size [2021-03-25 08:59:57,006 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:57,007 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,008 INFO L142 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size [2021-03-25 08:59:57,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:59:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:57,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:59:57,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 08:59:57,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,056 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-25 08:59:57,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-25 08:59:57,064 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-25 08:59:57,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,068 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 08:59:57,070 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 08:59:57,071 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,076 INFO L142 QuantifierPusher]: treesize reduction 131, result has 55.6 percent of original size [2021-03-25 08:59:57,080 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 08:59:57,081 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,092 INFO L142 QuantifierPusher]: treesize reduction 140, result has 38.9 percent of original size [2021-03-25 08:59:57,104 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 08:59:57,106 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,108 INFO L142 QuantifierPusher]: treesize reduction 84, result has 19.2 percent of original size [2021-03-25 08:59:57,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 08:59:57,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 08:59:57,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:59:57,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:59:57,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:59:57,162 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 08:59:57,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:59:57,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 08:59:57,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 08:59:57,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 08:59:57,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:59:57,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,188 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-25 08:59:57,188 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:57,189 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,190 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 08:59:57,190 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:57,191 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,194 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 08:59:57,195 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 08:59:57,196 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:57,198 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-25 08:59:57,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:57,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:59:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:57,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 08:59:57,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 08:59:57,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515192491] [2021-03-25 08:59:57,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 08:59:57,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:59:57,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 08:59:57,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-25 08:59:57,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2021-03-25 08:59:57,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 103 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:57,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:59:57,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2021-03-25 08:59:57,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:59:57,669 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2021-03-25 08:59:57,833 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-03-25 08:59:58,069 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2021-03-25 08:59:58,361 INFO L129 PetriNetUnfolder]: 39/93 cut-off events. [2021-03-25 08:59:58,361 INFO L130 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2021-03-25 08:59:58,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 93 events. 39/93 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 316 event pairs, 0 based on Foata normal form. 3/85 useless extension candidates. Maximal degree in co-relation 251. Up to 34 conditions per place. [2021-03-25 08:59:58,362 INFO L132 encePairwiseOnDemand]: 15/23 looper letters, 22 selfloop transitions, 25 changer transitions 3/54 dead transitions. [2021-03-25 08:59:58,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 353 flow [2021-03-25 08:59:58,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 08:59:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 08:59:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 196 transitions. [2021-03-25 08:59:58,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5681159420289855 [2021-03-25 08:59:58,365 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 196 transitions. [2021-03-25 08:59:58,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 196 transitions. [2021-03-25 08:59:58,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:59:58,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 196 transitions. [2021-03-25 08:59:58,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.066666666666666) internal successors, (196), 15 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:58,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 23.0) internal successors, (368), 16 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:58,367 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 23.0) internal successors, (368), 16 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:58,367 INFO L185 Difference]: Start difference. First operand has 28 places, 19 transitions, 103 flow. Second operand 15 states and 196 transitions. [2021-03-25 08:59:58,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 353 flow [2021-03-25 08:59:58,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 335 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 08:59:58,370 INFO L241 Difference]: Finished difference. Result has 46 places, 39 transitions, 275 flow [2021-03-25 08:59:58,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=275, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2021-03-25 08:59:58,370 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 30 predicate places. [2021-03-25 08:59:58,370 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:59:58,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 39 transitions, 275 flow [2021-03-25 08:59:58,371 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 39 transitions, 275 flow [2021-03-25 08:59:58,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 275 flow [2021-03-25 08:59:58,382 INFO L129 PetriNetUnfolder]: 24/68 cut-off events. [2021-03-25 08:59:58,382 INFO L130 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2021-03-25 08:59:58,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 68 events. 24/68 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 218 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 212. Up to 23 conditions per place. [2021-03-25 08:59:58,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 08:59:59,389 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 08:59:59,390 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 08:59:59,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1020 [2021-03-25 08:59:59,390 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 307 flow [2021-03-25 08:59:59,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:59:59,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:59:59,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 08:59:59,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-25 08:59:59,608 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 08:59:59,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:59:59,608 INFO L82 PathProgramCache]: Analyzing trace with hash 258443631, now seen corresponding path program 2 times [2021-03-25 08:59:59,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:59:59,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244888443] [2021-03-25 08:59:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:59:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:59:59,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:59,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,685 INFO L142 QuantifierPusher]: treesize reduction 29, result has 75.6 percent of original size [2021-03-25 08:59:59,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-25 08:59:59,761 INFO L142 QuantifierPusher]: treesize reduction 2610, result has 16.9 percent of original size [2021-03-25 08:59:59,766 INFO L147 QuantifierPusher]: treesize reduction 35, result has 93.4 percent of original size 496 [2021-03-25 08:59:59,866 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 08:59:59,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 08:59:59,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 08:59:59,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:59:59,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244888443] [2021-03-25 08:59:59,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428644289] [2021-03-25 08:59:59,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 08:59:59,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 08:59:59,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 08:59:59,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 08:59:59,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 08:59:59,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:59,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:59,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:59,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:59:59,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:59,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:59:59,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:59,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:59:59,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,938 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 08:59:59,939 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 08:59:59,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 08:59:59,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:59,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 08:59:59,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:59:59,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 08:59:59,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:59:59,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:59:59,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 08:59:59,957 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-25 08:59:59,960 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-25 08:59:59,963 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-25 08:59:59,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:00,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:00,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:00:00,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:00,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:00:00,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,024 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:00,024 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:00,025 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,030 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:00,030 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:00,031 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:00,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:00,035 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,039 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-25 09:00:00,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:00:00,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:00,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:00,107 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.5 percent of original size [2021-03-25 09:00:00,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:00,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-25 09:00:00,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-03-25 09:00:00,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-03-25 09:00:00,117 INFO L142 QuantifierPusher]: treesize reduction 265, result has 41.1 percent of original size [2021-03-25 09:00:00,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,124 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:00,126 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:00,127 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,129 INFO L142 QuantifierPusher]: treesize reduction 206, result has 35.0 percent of original size [2021-03-25 09:00:00,131 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:00,135 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,135 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,137 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-25 09:00:00,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:00,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:00,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:00,168 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:00,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:00,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:00,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:00,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:00,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:00,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,184 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:00:00,185 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:00,186 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,190 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:00:00,191 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:00,194 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:00,195 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:00:00,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:00,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:00,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:00,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:00,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195444701] [2021-03-25 09:00:00,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:00,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:00,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:00,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:00,222 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 29 [2021-03-25 09:00:00,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 307 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:00,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:00,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 29 [2021-03-25 09:00:00,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:00,621 INFO L129 PetriNetUnfolder]: 44/105 cut-off events. [2021-03-25 09:00:00,621 INFO L130 PetriNetUnfolder]: For 263/263 co-relation queries the response was YES. [2021-03-25 09:00:00,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 105 events. 44/105 cut-off events. For 263/263 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 381 event pairs, 1 based on Foata normal form. 1/92 useless extension candidates. Maximal degree in co-relation 457. Up to 73 conditions per place. [2021-03-25 09:00:00,624 INFO L132 encePairwiseOnDemand]: 22/29 looper letters, 35 selfloop transitions, 14 changer transitions 1/54 dead transitions. [2021-03-25 09:00:00,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 553 flow [2021-03-25 09:00:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 134 transitions. [2021-03-25 09:00:00,625 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2021-03-25 09:00:00,626 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 134 transitions. [2021-03-25 09:00:00,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 134 transitions. [2021-03-25 09:00:00,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:00,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 134 transitions. [2021-03-25 09:00:00,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:00,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:00,630 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 29.0) internal successors, (319), 11 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:00,630 INFO L185 Difference]: Start difference. First operand has 42 places, 38 transitions, 307 flow. Second operand 10 states and 134 transitions. [2021-03-25 09:00:00,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 553 flow [2021-03-25 09:00:00,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 391 flow, removed 74 selfloop flow, removed 8 redundant places. [2021-03-25 09:00:00,640 INFO L241 Difference]: Finished difference. Result has 46 places, 51 transitions, 334 flow [2021-03-25 09:00:00,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=334, PETRI_PLACES=46, PETRI_TRANSITIONS=51} [2021-03-25 09:00:00,640 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 30 predicate places. [2021-03-25 09:00:00,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:00,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 51 transitions, 334 flow [2021-03-25 09:00:00,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 51 transitions, 334 flow [2021-03-25 09:00:00,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 51 transitions, 334 flow [2021-03-25 09:00:00,648 INFO L129 PetriNetUnfolder]: 38/95 cut-off events. [2021-03-25 09:00:00,648 INFO L130 PetriNetUnfolder]: For 132/136 co-relation queries the response was YES. [2021-03-25 09:00:00,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 95 events. 38/95 cut-off events. For 132/136 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 350 event pairs, 0 based on Foata normal form. 1/79 useless extension candidates. Maximal degree in co-relation 291. Up to 25 conditions per place. [2021-03-25 09:00:00,649 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 09:00:01,221 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:01,222 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:00:01,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 582 [2021-03-25 09:00:01,222 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 50 transitions, 336 flow [2021-03-25 09:00:01,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:01,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:01,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-03-25 09:00:01,432 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:01,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1943663885, now seen corresponding path program 1 times [2021-03-25 09:00:01,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:01,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183734092] [2021-03-25 09:00:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:01,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:01,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:01,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:01,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183734092] [2021-03-25 09:00:01,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:01,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:01,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736604633] [2021-03-25 09:00:01,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:01,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:01,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:01,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:01,506 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-25 09:00:01,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 50 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:01,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-25 09:00:01,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:01,555 INFO L129 PetriNetUnfolder]: 50/128 cut-off events. [2021-03-25 09:00:01,555 INFO L130 PetriNetUnfolder]: For 377/413 co-relation queries the response was YES. [2021-03-25 09:00:01,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 128 events. 50/128 cut-off events. For 377/413 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 524 event pairs, 0 based on Foata normal form. 6/125 useless extension candidates. Maximal degree in co-relation 466. Up to 41 conditions per place. [2021-03-25 09:00:01,557 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 40 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2021-03-25 09:00:01,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 58 transitions, 484 flow [2021-03-25 09:00:01,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2021-03-25 09:00:01,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2021-03-25 09:00:01,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 84 transitions. [2021-03-25 09:00:01,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 84 transitions. [2021-03-25 09:00:01,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:01,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 84 transitions. [2021-03-25 09:00:01,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,559 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,560 INFO L185 Difference]: Start difference. First operand has 44 places, 50 transitions, 336 flow. Second operand 4 states and 84 transitions. [2021-03-25 09:00:01,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 58 transitions, 484 flow [2021-03-25 09:00:01,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 400 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:01,565 INFO L241 Difference]: Finished difference. Result has 45 places, 48 transitions, 274 flow [2021-03-25 09:00:01,565 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2021-03-25 09:00:01,565 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 29 predicate places. [2021-03-25 09:00:01,565 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:01,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 48 transitions, 274 flow [2021-03-25 09:00:01,566 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 48 transitions, 274 flow [2021-03-25 09:00:01,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 48 transitions, 274 flow [2021-03-25 09:00:01,581 INFO L129 PetriNetUnfolder]: 46/125 cut-off events. [2021-03-25 09:00:01,581 INFO L130 PetriNetUnfolder]: For 187/203 co-relation queries the response was YES. [2021-03-25 09:00:01,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 125 events. 46/125 cut-off events. For 187/203 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 541 event pairs, 0 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 327. Up to 36 conditions per place. [2021-03-25 09:00:01,583 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 09:00:01,586 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:01,586 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:01,586 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 09:00:01,586 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 274 flow [2021-03-25 09:00:01,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,586 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:01,587 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:01,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 09:00:01,587 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:01,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1481936698, now seen corresponding path program 1 times [2021-03-25 09:00:01,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:01,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954699948] [2021-03-25 09:00:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:01,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:01,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:01,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:01,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954699948] [2021-03-25 09:00:01,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:01,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:01,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301127309] [2021-03-25 09:00:01,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:01,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:01,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:01,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:01,647 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-25 09:00:01,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:01,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-25 09:00:01,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:01,687 INFO L129 PetriNetUnfolder]: 47/131 cut-off events. [2021-03-25 09:00:01,688 INFO L130 PetriNetUnfolder]: For 344/381 co-relation queries the response was YES. [2021-03-25 09:00:01,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 131 events. 47/131 cut-off events. For 344/381 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 574 event pairs, 0 based on Foata normal form. 8/131 useless extension candidates. Maximal degree in co-relation 402. Up to 59 conditions per place. [2021-03-25 09:00:01,689 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 37 selfloop transitions, 10 changer transitions 0/57 dead transitions. [2021-03-25 09:00:01,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 413 flow [2021-03-25 09:00:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:01,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-03-25 09:00:01,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2021-03-25 09:00:01,690 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 82 transitions. [2021-03-25 09:00:01,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 82 transitions. [2021-03-25 09:00:01,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:01,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 82 transitions. [2021-03-25 09:00:01,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,691 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,691 INFO L185 Difference]: Start difference. First operand has 45 places, 48 transitions, 274 flow. Second operand 4 states and 82 transitions. [2021-03-25 09:00:01,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 413 flow [2021-03-25 09:00:01,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 09:00:01,694 INFO L241 Difference]: Finished difference. Result has 48 places, 49 transitions, 307 flow [2021-03-25 09:00:01,695 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=48, PETRI_TRANSITIONS=49} [2021-03-25 09:00:01,695 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 32 predicate places. [2021-03-25 09:00:01,695 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:01,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 49 transitions, 307 flow [2021-03-25 09:00:01,695 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 49 transitions, 307 flow [2021-03-25 09:00:01,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 49 transitions, 307 flow [2021-03-25 09:00:01,708 INFO L129 PetriNetUnfolder]: 42/129 cut-off events. [2021-03-25 09:00:01,708 INFO L130 PetriNetUnfolder]: For 205/210 co-relation queries the response was YES. [2021-03-25 09:00:01,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 129 events. 42/129 cut-off events. For 205/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 613 event pairs, 1 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 343. Up to 34 conditions per place. [2021-03-25 09:00:01,709 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:01,712 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:01,712 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:01,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 09:00:01,713 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 49 transitions, 307 flow [2021-03-25 09:00:01,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:01,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:01,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 09:00:01,713 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:01,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:01,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1590613092, now seen corresponding path program 1 times [2021-03-25 09:00:01,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:01,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32751564] [2021-03-25 09:00:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:01,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:01,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:01,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:01,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32751564] [2021-03-25 09:00:01,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:01,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:01,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451676164] [2021-03-25 09:00:01,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:01,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:01,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:01,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:01,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-25 09:00:01,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 49 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:01,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-25 09:00:01,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:01,808 INFO L129 PetriNetUnfolder]: 46/127 cut-off events. [2021-03-25 09:00:01,808 INFO L130 PetriNetUnfolder]: For 371/379 co-relation queries the response was YES. [2021-03-25 09:00:01,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 127 events. 46/127 cut-off events. For 371/379 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 547 event pairs, 0 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 429. Up to 69 conditions per place. [2021-03-25 09:00:01,809 INFO L132 encePairwiseOnDemand]: 26/33 looper letters, 32 selfloop transitions, 10 changer transitions 0/52 dead transitions. [2021-03-25 09:00:01,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 417 flow [2021-03-25 09:00:01,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:01,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2021-03-25 09:00:01,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2021-03-25 09:00:01,810 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 81 transitions. [2021-03-25 09:00:01,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 81 transitions. [2021-03-25 09:00:01,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:01,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 81 transitions. [2021-03-25 09:00:01,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,812 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,812 INFO L185 Difference]: Start difference. First operand has 48 places, 49 transitions, 307 flow. Second operand 4 states and 81 transitions. [2021-03-25 09:00:01,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 417 flow [2021-03-25 09:00:01,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 408 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 09:00:01,815 INFO L241 Difference]: Finished difference. Result has 51 places, 49 transitions, 322 flow [2021-03-25 09:00:01,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2021-03-25 09:00:01,815 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 35 predicate places. [2021-03-25 09:00:01,815 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:01,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 322 flow [2021-03-25 09:00:01,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 49 transitions, 322 flow [2021-03-25 09:00:01,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 322 flow [2021-03-25 09:00:01,824 INFO L129 PetriNetUnfolder]: 37/119 cut-off events. [2021-03-25 09:00:01,825 INFO L130 PetriNetUnfolder]: For 181/187 co-relation queries the response was YES. [2021-03-25 09:00:01,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 119 events. 37/119 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 568 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 329. Up to 29 conditions per place. [2021-03-25 09:00:01,825 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:01,829 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:01,829 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:01,829 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 09:00:01,830 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 322 flow [2021-03-25 09:00:01,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:01,830 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:01,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 09:00:01,830 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash -427163769, now seen corresponding path program 1 times [2021-03-25 09:00:01,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:01,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463050991] [2021-03-25 09:00:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:01,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:01,864 INFO L142 QuantifierPusher]: treesize reduction 46, result has 27.0 percent of original size [2021-03-25 09:00:01,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:01,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:01,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463050991] [2021-03-25 09:00:01,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:01,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:01,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939213521] [2021-03-25 09:00:01,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:01,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:01,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:01,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:01,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-25 09:00:01,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:01,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-25 09:00:01,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:01,920 INFO L129 PetriNetUnfolder]: 44/119 cut-off events. [2021-03-25 09:00:01,920 INFO L130 PetriNetUnfolder]: For 412/444 co-relation queries the response was YES. [2021-03-25 09:00:01,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 119 events. 44/119 cut-off events. For 412/444 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 484 event pairs, 0 based on Foata normal form. 8/122 useless extension candidates. Maximal degree in co-relation 423. Up to 73 conditions per place. [2021-03-25 09:00:01,921 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 33 selfloop transitions, 5 changer transitions 1/49 dead transitions. [2021-03-25 09:00:01,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 398 flow [2021-03-25 09:00:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2021-03-25 09:00:01,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2021-03-25 09:00:01,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 78 transitions. [2021-03-25 09:00:01,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 78 transitions. [2021-03-25 09:00:01,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:01,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 78 transitions. [2021-03-25 09:00:01,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,923 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,923 INFO L185 Difference]: Start difference. First operand has 51 places, 49 transitions, 322 flow. Second operand 4 states and 78 transitions. [2021-03-25 09:00:01,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 398 flow [2021-03-25 09:00:01,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 380 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:01,926 INFO L241 Difference]: Finished difference. Result has 52 places, 47 transitions, 299 flow [2021-03-25 09:00:01,927 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2021-03-25 09:00:01,927 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 36 predicate places. [2021-03-25 09:00:01,927 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:01,927 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 47 transitions, 299 flow [2021-03-25 09:00:01,927 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 47 transitions, 299 flow [2021-03-25 09:00:01,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 299 flow [2021-03-25 09:00:01,936 INFO L129 PetriNetUnfolder]: 36/110 cut-off events. [2021-03-25 09:00:01,936 INFO L130 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES. [2021-03-25 09:00:01,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 110 events. 36/110 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 476 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 304. Up to 29 conditions per place. [2021-03-25 09:00:01,937 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:01,942 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:01,942 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:01,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 09:00:01,942 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 299 flow [2021-03-25 09:00:01,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:01,943 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:01,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 09:00:01,943 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:01,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1607236470, now seen corresponding path program 1 times [2021-03-25 09:00:01,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:01,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559297487] [2021-03-25 09:00:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:01,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:01,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:01,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:01,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:01,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559297487] [2021-03-25 09:00:01,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:01,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:01,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827615273] [2021-03-25 09:00:01,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:01,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:01,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:01,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:01,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2021-03-25 09:00:01,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:01,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:01,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2021-03-25 09:00:01,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:02,027 INFO L129 PetriNetUnfolder]: 42/110 cut-off events. [2021-03-25 09:00:02,027 INFO L130 PetriNetUnfolder]: For 385/429 co-relation queries the response was YES. [2021-03-25 09:00:02,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 110 events. 42/110 cut-off events. For 385/429 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 425 event pairs, 0 based on Foata normal form. 7/113 useless extension candidates. Maximal degree in co-relation 394. Up to 46 conditions per place. [2021-03-25 09:00:02,028 INFO L132 encePairwiseOnDemand]: 29/33 looper letters, 37 selfloop transitions, 3 changer transitions 1/51 dead transitions. [2021-03-25 09:00:02,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 402 flow [2021-03-25 09:00:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-03-25 09:00:02,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-03-25 09:00:02,029 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 77 transitions. [2021-03-25 09:00:02,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 77 transitions. [2021-03-25 09:00:02,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:02,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 77 transitions. [2021-03-25 09:00:02,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,030 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,030 INFO L185 Difference]: Start difference. First operand has 51 places, 47 transitions, 299 flow. Second operand 4 states and 77 transitions. [2021-03-25 09:00:02,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 402 flow [2021-03-25 09:00:02,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:02,033 INFO L241 Difference]: Finished difference. Result has 52 places, 45 transitions, 282 flow [2021-03-25 09:00:02,033 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2021-03-25 09:00:02,033 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 36 predicate places. [2021-03-25 09:00:02,033 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:02,033 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 45 transitions, 282 flow [2021-03-25 09:00:02,034 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 45 transitions, 282 flow [2021-03-25 09:00:02,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 282 flow [2021-03-25 09:00:02,041 INFO L129 PetriNetUnfolder]: 34/101 cut-off events. [2021-03-25 09:00:02,041 INFO L130 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2021-03-25 09:00:02,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 101 events. 34/101 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 418 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 285. Up to 29 conditions per place. [2021-03-25 09:00:02,042 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:02,045 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:02,045 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:02,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-25 09:00:02,046 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 282 flow [2021-03-25 09:00:02,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:02,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:02,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 09:00:02,046 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:02,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:02,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1505141563, now seen corresponding path program 1 times [2021-03-25 09:00:02,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:02,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374517184] [2021-03-25 09:00:02,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:02,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:02,077 INFO L142 QuantifierPusher]: treesize reduction 220, result has 19.7 percent of original size [2021-03-25 09:00:02,078 INFO L147 QuantifierPusher]: treesize reduction 4, result has 92.6 percent of original size 50 [2021-03-25 09:00:02,123 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:02,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:02,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374517184] [2021-03-25 09:00:02,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:02,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:02,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418191255] [2021-03-25 09:00:02,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:02,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:02,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:02,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:02,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 09:00:02,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:02,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 09:00:02,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:02,574 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-25 09:00:02,575 INFO L130 PetriNetUnfolder]: For 354/361 co-relation queries the response was YES. [2021-03-25 09:00:02,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 146 events. 62/146 cut-off events. For 354/361 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 593 event pairs, 4 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 550. Up to 103 conditions per place. [2021-03-25 09:00:02,576 INFO L132 encePairwiseOnDemand]: 24/33 looper letters, 33 selfloop transitions, 23 changer transitions 1/61 dead transitions. [2021-03-25 09:00:02,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 492 flow [2021-03-25 09:00:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:02,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2021-03-25 09:00:02,577 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2021-03-25 09:00:02,577 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 138 transitions. [2021-03-25 09:00:02,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 138 transitions. [2021-03-25 09:00:02,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:02,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 138 transitions. [2021-03-25 09:00:02,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,578 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,578 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 282 flow. Second operand 10 states and 138 transitions. [2021-03-25 09:00:02,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 492 flow [2021-03-25 09:00:02,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 61 transitions, 489 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 09:00:02,581 INFO L241 Difference]: Finished difference. Result has 61 places, 57 transitions, 438 flow [2021-03-25 09:00:02,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=438, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2021-03-25 09:00:02,581 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 45 predicate places. [2021-03-25 09:00:02,581 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:02,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 57 transitions, 438 flow [2021-03-25 09:00:02,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 57 transitions, 438 flow [2021-03-25 09:00:02,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 438 flow [2021-03-25 09:00:02,592 INFO L129 PetriNetUnfolder]: 49/131 cut-off events. [2021-03-25 09:00:02,592 INFO L130 PetriNetUnfolder]: For 321/336 co-relation queries the response was YES. [2021-03-25 09:00:02,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 131 events. 49/131 cut-off events. For 321/336 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 565 event pairs, 0 based on Foata normal form. 3/114 useless extension candidates. Maximal degree in co-relation 466. Up to 50 conditions per place. [2021-03-25 09:00:02,593 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 09:00:02,597 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:02,597 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:02,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 09:00:02,598 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 438 flow [2021-03-25 09:00:02,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,598 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:02,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:02,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 09:00:02,598 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:02,599 INFO L82 PathProgramCache]: Analyzing trace with hash 576105064, now seen corresponding path program 1 times [2021-03-25 09:00:02,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:02,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417807146] [2021-03-25 09:00:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:02,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:02,620 INFO L142 QuantifierPusher]: treesize reduction 42, result has 35.4 percent of original size [2021-03-25 09:00:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:02,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:02,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:02,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417807146] [2021-03-25 09:00:02,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:02,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:02,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686138242] [2021-03-25 09:00:02,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:02,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:02,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:02,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:02,633 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2021-03-25 09:00:02,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 438 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:02,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2021-03-25 09:00:02,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:02,699 INFO L129 PetriNetUnfolder]: 61/138 cut-off events. [2021-03-25 09:00:02,699 INFO L130 PetriNetUnfolder]: For 459/468 co-relation queries the response was YES. [2021-03-25 09:00:02,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 138 events. 61/138 cut-off events. For 459/468 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 522 event pairs, 5 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 646. Up to 109 conditions per place. [2021-03-25 09:00:02,701 INFO L132 encePairwiseOnDemand]: 27/33 looper letters, 45 selfloop transitions, 5 changer transitions 1/56 dead transitions. [2021-03-25 09:00:02,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 536 flow [2021-03-25 09:00:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:02,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-03-25 09:00:02,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2021-03-25 09:00:02,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-03-25 09:00:02,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-03-25 09:00:02,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:02,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-03-25 09:00:02,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,703 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,703 INFO L185 Difference]: Start difference. First operand has 59 places, 57 transitions, 438 flow. Second operand 5 states and 78 transitions. [2021-03-25 09:00:02,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 536 flow [2021-03-25 09:00:02,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 475 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:02,706 INFO L241 Difference]: Finished difference. Result has 60 places, 55 transitions, 375 flow [2021-03-25 09:00:02,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2021-03-25 09:00:02,706 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 44 predicate places. [2021-03-25 09:00:02,707 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:02,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 375 flow [2021-03-25 09:00:02,707 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 375 flow [2021-03-25 09:00:02,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 375 flow [2021-03-25 09:00:02,716 INFO L129 PetriNetUnfolder]: 48/124 cut-off events. [2021-03-25 09:00:02,716 INFO L130 PetriNetUnfolder]: For 257/277 co-relation queries the response was YES. [2021-03-25 09:00:02,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 124 events. 48/124 cut-off events. For 257/277 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 503 event pairs, 0 based on Foata normal form. 4/112 useless extension candidates. Maximal degree in co-relation 398. Up to 50 conditions per place. [2021-03-25 09:00:02,717 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-25 09:00:02,721 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:02,721 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:02,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 09:00:02,722 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 375 flow [2021-03-25 09:00:02,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:02,722 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:02,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:02,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 09:00:02,722 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:02,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:02,723 INFO L82 PathProgramCache]: Analyzing trace with hash 95497611, now seen corresponding path program 1 times [2021-03-25 09:00:02,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:02,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568586109] [2021-03-25 09:00:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:02,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:00:02,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:02,766 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-25 09:00:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:02,788 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-25 09:00:02,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:02,809 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-25 09:00:02,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:02,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:02,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568586109] [2021-03-25 09:00:02,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304947918] [2021-03-25 09:00:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:02,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:02,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:02,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:02,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:02,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:02,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:02,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,875 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:02,875 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,876 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:02,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:02,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:02,892 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-25 09:00:02,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:02,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:02,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:02,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-25 09:00:02,899 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-25 09:00:02,900 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-25 09:00:02,901 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-25 09:00:02,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:02,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:02,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:02,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:02,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:02,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:02,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-03-25 09:00:02,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:02,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:02,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 632 [2021-03-25 09:00:02,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 633 [2021-03-25 09:00:02,998 INFO L142 QuantifierPusher]: treesize reduction 643, result has 22.4 percent of original size [2021-03-25 09:00:02,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,001 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:03,001 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:03,004 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,006 INFO L142 QuantifierPusher]: treesize reduction 180, result has 43.9 percent of original size [2021-03-25 09:00:03,007 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:03,007 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,008 INFO L142 QuantifierPusher]: treesize reduction 108, result has 40.7 percent of original size [2021-03-25 09:00:03,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:03,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:03,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:03,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:03,045 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:03,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:03,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:03,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:03,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,055 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:00:03,055 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:03,056 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,058 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-25 09:00:03,059 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:03,060 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,060 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-25 09:00:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:03,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:03,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:03,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:03,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:03,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:03,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:03,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,086 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:00:03,086 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:03,087 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,088 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:03,089 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:03,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:03,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:03,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:03,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:03,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297549637] [2021-03-25 09:00:03,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:03,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:03,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:03,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:03,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2021-03-25 09:00:03,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 375 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:03,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:03,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2021-03-25 09:00:03,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:03,264 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2021-03-25 09:00:03,845 INFO L129 PetriNetUnfolder]: 67/170 cut-off events. [2021-03-25 09:00:03,845 INFO L130 PetriNetUnfolder]: For 490/516 co-relation queries the response was YES. [2021-03-25 09:00:03,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 170 events. 67/170 cut-off events. For 490/516 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 768 event pairs, 4 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 693. Up to 85 conditions per place. [2021-03-25 09:00:03,846 INFO L132 encePairwiseOnDemand]: 25/33 looper letters, 57 selfloop transitions, 17 changer transitions 3/81 dead transitions. [2021-03-25 09:00:03,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 81 transitions, 767 flow [2021-03-25 09:00:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:03,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 143 transitions. [2021-03-25 09:00:03,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2021-03-25 09:00:03,848 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 143 transitions. [2021-03-25 09:00:03,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 143 transitions. [2021-03-25 09:00:03,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:03,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 143 transitions. [2021-03-25 09:00:03,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:03,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:03,850 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 33.0) internal successors, (363), 11 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:03,850 INFO L185 Difference]: Start difference. First operand has 56 places, 55 transitions, 375 flow. Second operand 10 states and 143 transitions. [2021-03-25 09:00:03,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 81 transitions, 767 flow [2021-03-25 09:00:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 81 transitions, 757 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:03,854 INFO L241 Difference]: Finished difference. Result has 67 places, 63 transitions, 492 flow [2021-03-25 09:00:03,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=492, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2021-03-25 09:00:03,854 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 51 predicate places. [2021-03-25 09:00:03,854 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:03,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 492 flow [2021-03-25 09:00:03,855 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 492 flow [2021-03-25 09:00:03,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 63 transitions, 492 flow [2021-03-25 09:00:03,869 INFO L129 PetriNetUnfolder]: 58/153 cut-off events. [2021-03-25 09:00:03,869 INFO L130 PetriNetUnfolder]: For 1134/1144 co-relation queries the response was YES. [2021-03-25 09:00:03,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 153 events. 58/153 cut-off events. For 1134/1144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 692 event pairs, 2 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 652. Up to 69 conditions per place. [2021-03-25 09:00:03,871 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 09:00:03,984 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-03-25 09:00:04,268 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2021-03-25 09:00:04,422 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2021-03-25 09:00:04,471 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:04,472 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:00:04,472 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 618 [2021-03-25 09:00:04,472 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 504 flow [2021-03-25 09:00:04,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:04,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:04,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:04,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-03-25 09:00:04,695 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:04,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash -939822850, now seen corresponding path program 1 times [2021-03-25 09:00:04,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:04,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435209006] [2021-03-25 09:00:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:04,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:04,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:04,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:04,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435209006] [2021-03-25 09:00:04,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623748301] [2021-03-25 09:00:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:04,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 09:00:04,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:04,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:04,767 INFO L142 QuantifierPusher]: treesize reduction 53, result has 39.8 percent of original size [2021-03-25 09:00:04,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:04,786 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-25 09:00:04,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:04,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:04,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:04,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:04,793 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-25 09:00:04,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:04,798 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:04,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:04,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:04,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-25 09:00:04,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393155409] [2021-03-25 09:00:04,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:04,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:04,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:04,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:04,804 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2021-03-25 09:00:04,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:04,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:04,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2021-03-25 09:00:04,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:04,904 INFO L129 PetriNetUnfolder]: 68/169 cut-off events. [2021-03-25 09:00:04,904 INFO L130 PetriNetUnfolder]: For 1354/1363 co-relation queries the response was YES. [2021-03-25 09:00:04,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 169 events. 68/169 cut-off events. For 1354/1363 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 753 event pairs, 6 based on Foata normal form. 8/168 useless extension candidates. Maximal degree in co-relation 855. Up to 73 conditions per place. [2021-03-25 09:00:04,906 INFO L132 encePairwiseOnDemand]: 28/35 looper letters, 60 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2021-03-25 09:00:04,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 75 transitions, 806 flow [2021-03-25 09:00:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-25 09:00:04,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045 [2021-03-25 09:00:04,908 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-25 09:00:04,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-25 09:00:04,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:04,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-25 09:00:04,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:04,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:04,909 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 35.0) internal successors, (245), 7 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:04,909 INFO L185 Difference]: Start difference. First operand has 65 places, 63 transitions, 504 flow. Second operand 6 states and 103 transitions. [2021-03-25 09:00:04,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 75 transitions, 806 flow [2021-03-25 09:00:04,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 75 transitions, 748 flow, removed 26 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:04,915 INFO L241 Difference]: Finished difference. Result has 68 places, 64 transitions, 501 flow [2021-03-25 09:00:04,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2021-03-25 09:00:04,915 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 52 predicate places. [2021-03-25 09:00:04,916 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:04,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 501 flow [2021-03-25 09:00:04,916 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 501 flow [2021-03-25 09:00:04,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 501 flow [2021-03-25 09:00:04,928 INFO L129 PetriNetUnfolder]: 53/152 cut-off events. [2021-03-25 09:00:04,928 INFO L130 PetriNetUnfolder]: For 979/983 co-relation queries the response was YES. [2021-03-25 09:00:04,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 152 events. 53/152 cut-off events. For 979/983 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 737 event pairs, 2 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 588. Up to 63 conditions per place. [2021-03-25 09:00:04,930 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 09:00:05,148 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:00:05,148 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:05,149 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-25 09:00:05,149 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 520 flow [2021-03-25 09:00:05,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:05,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:05,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-25 09:00:05,364 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:05,364 INFO L82 PathProgramCache]: Analyzing trace with hash -625795919, now seen corresponding path program 1 times [2021-03-25 09:00:05,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:05,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205098670] [2021-03-25 09:00:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:05,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,391 INFO L142 QuantifierPusher]: treesize reduction 46, result has 23.3 percent of original size [2021-03-25 09:00:05,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:05,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:05,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:05,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205098670] [2021-03-25 09:00:05,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699882669] [2021-03-25 09:00:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 09:00:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:05,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:05,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:05,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:05,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:05,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:05,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:05,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,467 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:05,468 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:05,469 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:05,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:05,484 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:00:05,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:05,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:05,487 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-25 09:00:05,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:05,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:05,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-25 09:00:05,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:05,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-25 09:00:05,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-25 09:00:05,558 INFO L142 QuantifierPusher]: treesize reduction 57, result has 37.4 percent of original size [2021-03-25 09:00:05,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:05,563 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:05,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:05,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:05,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:05,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 09:00:05,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203061297] [2021-03-25 09:00:05,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:00:05,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:05,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:00:05,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:00:05,569 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 36 [2021-03-25 09:00:05,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 64 transitions, 520 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:05,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 36 [2021-03-25 09:00:05,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:05,816 INFO L129 PetriNetUnfolder]: 64/161 cut-off events. [2021-03-25 09:00:05,816 INFO L130 PetriNetUnfolder]: For 1597/1630 co-relation queries the response was YES. [2021-03-25 09:00:05,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 161 events. 64/161 cut-off events. For 1597/1630 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 708 event pairs, 4 based on Foata normal form. 5/159 useless extension candidates. Maximal degree in co-relation 806. Up to 77 conditions per place. [2021-03-25 09:00:05,818 INFO L132 encePairwiseOnDemand]: 30/36 looper letters, 46 selfloop transitions, 15 changer transitions 0/72 dead transitions. [2021-03-25 09:00:05,818 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 72 transitions, 782 flow [2021-03-25 09:00:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2021-03-25 09:00:05,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2021-03-25 09:00:05,820 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 116 transitions. [2021-03-25 09:00:05,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 116 transitions. [2021-03-25 09:00:05,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:05,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 116 transitions. [2021-03-25 09:00:05,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 36.0) internal successors, (252), 7 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,821 INFO L185 Difference]: Start difference. First operand has 68 places, 64 transitions, 520 flow. Second operand 6 states and 116 transitions. [2021-03-25 09:00:05,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 72 transitions, 782 flow [2021-03-25 09:00:05,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 72 transitions, 675 flow, removed 46 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:05,827 INFO L241 Difference]: Finished difference. Result has 67 places, 63 transitions, 486 flow [2021-03-25 09:00:05,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2021-03-25 09:00:05,827 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 51 predicate places. [2021-03-25 09:00:05,827 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:05,827 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 63 transitions, 486 flow [2021-03-25 09:00:05,828 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 63 transitions, 486 flow [2021-03-25 09:00:05,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 63 transitions, 486 flow [2021-03-25 09:00:05,839 INFO L129 PetriNetUnfolder]: 54/149 cut-off events. [2021-03-25 09:00:05,840 INFO L130 PetriNetUnfolder]: For 606/611 co-relation queries the response was YES. [2021-03-25 09:00:05,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 149 events. 54/149 cut-off events. For 606/611 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 704 event pairs, 2 based on Foata normal form. 4/145 useless extension candidates. Maximal degree in co-relation 563. Up to 70 conditions per place. [2021-03-25 09:00:05,841 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 09:00:05,846 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:05,847 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:05,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 09:00:05,847 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 486 flow [2021-03-25 09:00:05,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:05,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:05,848 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:06,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:06,064 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:06,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:06,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1649086271, now seen corresponding path program 1 times [2021-03-25 09:00:06,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:06,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186373133] [2021-03-25 09:00:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:06,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,112 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:00:06,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:06,117 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-25 09:00:06,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:06,141 INFO L142 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-03-25 09:00:06,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:06,160 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:06,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:06,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186373133] [2021-03-25 09:00:06,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518557379] [2021-03-25 09:00:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:06,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:06,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:06,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:06,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:06,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:06,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:06,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,233 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,234 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,235 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:06,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:06,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:06,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:06,252 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-25 09:00:06,253 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:06,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:06,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:06,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-25 09:00:06,258 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-25 09:00:06,260 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-25 09:00:06,262 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-25 09:00:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:06,327 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-25 09:00:06,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:06,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:06,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:06,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:06,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:00:06,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,335 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:06,335 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,336 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,336 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:06,337 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:06,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,339 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,340 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,341 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-25 09:00:06,342 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:06,342 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:06,342 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:06,343 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,344 INFO L142 QuantifierPusher]: treesize reduction 143, result has 26.7 percent of original size [2021-03-25 09:00:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:06,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:06,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:06,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:06,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-25 09:00:06,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-25 09:00:06,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:00:06,385 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-25 09:00:06,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,387 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:06,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:06,388 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,390 INFO L142 QuantifierPusher]: treesize reduction 216, result has 17.2 percent of original size [2021-03-25 09:00:06,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:06,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:06,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:06,413 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:06,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:06,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:06,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:06,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:06,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,419 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,420 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:06,420 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,421 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,422 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:06,422 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:06,422 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:06,423 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:00:06,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:06,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:06,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:06,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:06,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033645114] [2021-03-25 09:00:06,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:06,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:06,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:06,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:06,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2021-03-25 09:00:06,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 486 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:06,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:06,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2021-03-25 09:00:06,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:06,807 INFO L129 PetriNetUnfolder]: 68/169 cut-off events. [2021-03-25 09:00:06,807 INFO L130 PetriNetUnfolder]: For 945/951 co-relation queries the response was YES. [2021-03-25 09:00:06,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 169 events. 68/169 cut-off events. For 945/951 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 755 event pairs, 4 based on Foata normal form. 5/166 useless extension candidates. Maximal degree in co-relation 800. Up to 91 conditions per place. [2021-03-25 09:00:06,809 INFO L132 encePairwiseOnDemand]: 27/36 looper letters, 57 selfloop transitions, 16 changer transitions 2/79 dead transitions. [2021-03-25 09:00:06,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 802 flow [2021-03-25 09:00:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:00:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:00:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2021-03-25 09:00:06,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40625 [2021-03-25 09:00:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2021-03-25 09:00:06,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2021-03-25 09:00:06,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:06,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2021-03-25 09:00:06,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:06,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:06,811 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 36.0) internal successors, (324), 9 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:06,811 INFO L185 Difference]: Start difference. First operand has 67 places, 63 transitions, 486 flow. Second operand 8 states and 117 transitions. [2021-03-25 09:00:06,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 802 flow [2021-03-25 09:00:06,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 79 transitions, 787 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:06,816 INFO L241 Difference]: Finished difference. Result has 75 places, 65 transitions, 539 flow [2021-03-25 09:00:06,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=539, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2021-03-25 09:00:06,817 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 59 predicate places. [2021-03-25 09:00:06,817 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:06,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 65 transitions, 539 flow [2021-03-25 09:00:06,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 65 transitions, 539 flow [2021-03-25 09:00:06,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 65 transitions, 539 flow [2021-03-25 09:00:06,830 INFO L129 PetriNetUnfolder]: 53/151 cut-off events. [2021-03-25 09:00:06,831 INFO L130 PetriNetUnfolder]: For 764/768 co-relation queries the response was YES. [2021-03-25 09:00:06,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 666 conditions, 151 events. 53/151 cut-off events. For 764/768 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 721 event pairs, 1 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 607. Up to 69 conditions per place. [2021-03-25 09:00:06,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-25 09:00:06,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:06,998 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:06,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-03-25 09:00:06,999 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 547 flow [2021-03-25 09:00:07,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:07,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:07,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:07,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:07,208 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:07,208 INFO L82 PathProgramCache]: Analyzing trace with hash 388901876, now seen corresponding path program 1 times [2021-03-25 09:00:07,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:07,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241702355] [2021-03-25 09:00:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:07,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,249 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:00:07,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:07,253 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.6 percent of original size [2021-03-25 09:00:07,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:00:07,344 INFO L142 QuantifierPusher]: treesize reduction 1059, result has 22.2 percent of original size [2021-03-25 09:00:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-03-25 09:00:07,405 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:07,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:07,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:07,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241702355] [2021-03-25 09:00:07,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005076974] [2021-03-25 09:00:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 09:00:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:07,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 09:00:07,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:07,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:07,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:07,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:07,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:07,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,471 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:07,472 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,472 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:07,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:07,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:07,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:07,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:07,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:07,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:07,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:00:07,493 INFO L142 QuantifierPusher]: treesize reduction 107, result has 46.8 percent of original size [2021-03-25 09:00:07,493 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-25 09:00:07,494 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-25 09:00:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 09:00:07,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:07,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:07,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:07,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,562 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:07,562 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:07,563 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,564 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:07,565 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:07,565 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:07,567 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:07,568 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,569 INFO L142 QuantifierPusher]: treesize reduction 57, result has 55.8 percent of original size [2021-03-25 09:00:07,569 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:07,569 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,570 INFO L142 QuantifierPusher]: treesize reduction 45, result has 49.4 percent of original size [2021-03-25 09:00:07,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:07,609 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-25 09:00:07,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:07,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 09:00:07,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-25 09:00:07,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-25 09:00:07,615 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-25 09:00:07,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,617 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:07,617 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:07,619 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,620 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-25 09:00:07,621 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:07,622 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,623 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-25 09:00:07,624 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:07,624 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,625 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-25 09:00:07,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:07,630 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-25 09:00:07,630 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:00:07,631 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:00:07,635 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-25 09:00:07,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:07,662 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:07,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:07,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:07,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,668 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:07,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:07,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:07,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,673 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:00:07,673 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:07,674 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,677 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:00:07,678 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:07,678 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:07,679 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:00:07,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:07,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:07,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:07,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:07,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632659232] [2021-03-25 09:00:07,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:07,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:07,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:07,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:07,705 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2021-03-25 09:00:07,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 547 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:07,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:07,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2021-03-25 09:00:07,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:08,255 INFO L129 PetriNetUnfolder]: 73/194 cut-off events. [2021-03-25 09:00:08,255 INFO L130 PetriNetUnfolder]: For 1408/1414 co-relation queries the response was YES. [2021-03-25 09:00:08,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 194 events. 73/194 cut-off events. For 1408/1414 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 936 event pairs, 3 based on Foata normal form. 4/190 useless extension candidates. Maximal degree in co-relation 1000. Up to 123 conditions per place. [2021-03-25 09:00:08,257 INFO L132 encePairwiseOnDemand]: 29/37 looper letters, 61 selfloop transitions, 23 changer transitions 1/89 dead transitions. [2021-03-25 09:00:08,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 1027 flow [2021-03-25 09:00:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:00:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:00:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 163 transitions. [2021-03-25 09:00:08,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36711711711711714 [2021-03-25 09:00:08,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 163 transitions. [2021-03-25 09:00:08,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 163 transitions. [2021-03-25 09:00:08,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:08,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 163 transitions. [2021-03-25 09:00:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.583333333333334) internal successors, (163), 12 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:08,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 37.0) internal successors, (481), 13 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:08,260 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 37.0) internal successors, (481), 13 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:08,260 INFO L185 Difference]: Start difference. First operand has 74 places, 65 transitions, 547 flow. Second operand 12 states and 163 transitions. [2021-03-25 09:00:08,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 1027 flow [2021-03-25 09:00:08,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 949 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:08,266 INFO L241 Difference]: Finished difference. Result has 86 places, 80 transitions, 790 flow [2021-03-25 09:00:08,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=790, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2021-03-25 09:00:08,267 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-25 09:00:08,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:08,267 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 790 flow [2021-03-25 09:00:08,267 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 790 flow [2021-03-25 09:00:08,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 790 flow [2021-03-25 09:00:08,281 INFO L129 PetriNetUnfolder]: 62/177 cut-off events. [2021-03-25 09:00:08,281 INFO L130 PetriNetUnfolder]: For 1318/1332 co-relation queries the response was YES. [2021-03-25 09:00:08,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 177 events. 62/177 cut-off events. For 1318/1332 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 893 event pairs, 0 based on Foata normal form. 3/172 useless extension candidates. Maximal degree in co-relation 837. Up to 82 conditions per place. [2021-03-25 09:00:08,283 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 09:00:08,690 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:08,690 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:08,691 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 424 [2021-03-25 09:00:08,691 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 799 flow [2021-03-25 09:00:08,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:08,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:08,691 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:08,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:08,896 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:08,896 INFO L82 PathProgramCache]: Analyzing trace with hash 2080400369, now seen corresponding path program 1 times [2021-03-25 09:00:08,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:08,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092079571] [2021-03-25 09:00:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:08,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:08,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:08,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:08,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:08,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:08,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:08,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:08,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:08,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:08,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092079571] [2021-03-25 09:00:08,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:08,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:08,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975434023] [2021-03-25 09:00:08,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:08,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:08,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:08,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:08,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2021-03-25 09:00:08,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 799 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:08,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:08,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2021-03-25 09:00:08,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:09,004 INFO L129 PetriNetUnfolder]: 68/181 cut-off events. [2021-03-25 09:00:09,005 INFO L130 PetriNetUnfolder]: For 1590/1637 co-relation queries the response was YES. [2021-03-25 09:00:09,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 181 events. 68/181 cut-off events. For 1590/1637 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 867 event pairs, 3 based on Foata normal form. 4/177 useless extension candidates. Maximal degree in co-relation 976. Up to 84 conditions per place. [2021-03-25 09:00:09,006 INFO L132 encePairwiseOnDemand]: 33/40 looper letters, 58 selfloop transitions, 11 changer transitions 1/83 dead transitions. [2021-03-25 09:00:09,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 989 flow [2021-03-25 09:00:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:09,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2021-03-25 09:00:09,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.51 [2021-03-25 09:00:09,009 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 102 transitions. [2021-03-25 09:00:09,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 102 transitions. [2021-03-25 09:00:09,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:09,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 102 transitions. [2021-03-25 09:00:09,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,020 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,020 INFO L185 Difference]: Start difference. First operand has 84 places, 79 transitions, 799 flow. Second operand 5 states and 102 transitions. [2021-03-25 09:00:09,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 989 flow [2021-03-25 09:00:09,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 83 transitions, 861 flow, removed 64 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:09,029 INFO L241 Difference]: Finished difference. Result has 86 places, 77 transitions, 678 flow [2021-03-25 09:00:09,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=678, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2021-03-25 09:00:09,029 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-25 09:00:09,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:09,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 77 transitions, 678 flow [2021-03-25 09:00:09,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 77 transitions, 678 flow [2021-03-25 09:00:09,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 77 transitions, 678 flow [2021-03-25 09:00:09,043 INFO L129 PetriNetUnfolder]: 61/174 cut-off events. [2021-03-25 09:00:09,043 INFO L130 PetriNetUnfolder]: For 1302/1320 co-relation queries the response was YES. [2021-03-25 09:00:09,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 174 events. 61/174 cut-off events. For 1302/1320 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 886 event pairs, 0 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 768. Up to 74 conditions per place. [2021-03-25 09:00:09,045 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 09:00:09,225 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:09,225 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:09,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 196 [2021-03-25 09:00:09,226 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 77 transitions, 685 flow [2021-03-25 09:00:09,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,226 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:09,226 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:09,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-25 09:00:09,227 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:09,227 INFO L82 PathProgramCache]: Analyzing trace with hash 2037597256, now seen corresponding path program 1 times [2021-03-25 09:00:09,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:09,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341158825] [2021-03-25 09:00:09,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:09,254 INFO L142 QuantifierPusher]: treesize reduction 111, result has 15.3 percent of original size [2021-03-25 09:00:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:00:09,261 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:00:09,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:09,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:09,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341158825] [2021-03-25 09:00:09,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:09,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:09,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893135775] [2021-03-25 09:00:09,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:09,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:09,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:09,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:09,268 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2021-03-25 09:00:09,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 77 transitions, 685 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:09,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2021-03-25 09:00:09,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:09,316 INFO L129 PetriNetUnfolder]: 67/179 cut-off events. [2021-03-25 09:00:09,316 INFO L130 PetriNetUnfolder]: For 1541/1569 co-relation queries the response was YES. [2021-03-25 09:00:09,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 179 events. 67/179 cut-off events. For 1541/1569 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 844 event pairs, 4 based on Foata normal form. 5/176 useless extension candidates. Maximal degree in co-relation 902. Up to 95 conditions per place. [2021-03-25 09:00:09,318 INFO L132 encePairwiseOnDemand]: 33/41 looper letters, 53 selfloop transitions, 11 changer transitions 1/78 dead transitions. [2021-03-25 09:00:09,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 78 transitions, 823 flow [2021-03-25 09:00:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:09,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-03-25 09:00:09,319 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-03-25 09:00:09,319 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 82 transitions. [2021-03-25 09:00:09,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 82 transitions. [2021-03-25 09:00:09,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:09,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 82 transitions. [2021-03-25 09:00:09,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,320 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,320 INFO L185 Difference]: Start difference. First operand has 85 places, 77 transitions, 685 flow. Second operand 4 states and 82 transitions. [2021-03-25 09:00:09,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 78 transitions, 823 flow [2021-03-25 09:00:09,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 807 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:09,327 INFO L241 Difference]: Finished difference. Result has 86 places, 75 transitions, 662 flow [2021-03-25 09:00:09,327 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=662, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2021-03-25 09:00:09,327 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 70 predicate places. [2021-03-25 09:00:09,327 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:09,327 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 75 transitions, 662 flow [2021-03-25 09:00:09,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 75 transitions, 662 flow [2021-03-25 09:00:09,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 75 transitions, 662 flow [2021-03-25 09:00:09,342 INFO L129 PetriNetUnfolder]: 60/171 cut-off events. [2021-03-25 09:00:09,342 INFO L130 PetriNetUnfolder]: For 1282/1299 co-relation queries the response was YES. [2021-03-25 09:00:09,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 171 events. 60/171 cut-off events. For 1282/1299 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 850 event pairs, 1 based on Foata normal form. 3/166 useless extension candidates. Maximal degree in co-relation 769. Up to 73 conditions per place. [2021-03-25 09:00:09,344 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 09:00:09,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:09,347 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:09,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 09:00:09,347 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 662 flow [2021-03-25 09:00:09,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:09,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:09,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-25 09:00:09,347 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:09,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1607206679, now seen corresponding path program 1 times [2021-03-25 09:00:09,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:09,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088188829] [2021-03-25 09:00:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:09,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:09,395 INFO L142 QuantifierPusher]: treesize reduction 103, result has 5.5 percent of original size [2021-03-25 09:00:09,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:09,401 INFO L142 QuantifierPusher]: treesize reduction 228, result has 24.5 percent of original size [2021-03-25 09:00:09,401 INFO L147 QuantifierPusher]: treesize reduction 7, result has 90.5 percent of original size 67 [2021-03-25 09:00:09,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 60.9 percent of original size [2021-03-25 09:00:09,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:09,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:09,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088188829] [2021-03-25 09:00:09,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:09,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:09,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098326602] [2021-03-25 09:00:09,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:09,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:09,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:09,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2021-03-25 09:00:09,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:09,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2021-03-25 09:00:09,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:09,772 INFO L129 PetriNetUnfolder]: 76/191 cut-off events. [2021-03-25 09:00:09,773 INFO L130 PetriNetUnfolder]: For 1730/1736 co-relation queries the response was YES. [2021-03-25 09:00:09,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 191 events. 76/191 cut-off events. For 1730/1736 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 888 event pairs, 5 based on Foata normal form. 4/185 useless extension candidates. Maximal degree in co-relation 1049. Up to 125 conditions per place. [2021-03-25 09:00:09,775 INFO L132 encePairwiseOnDemand]: 31/41 looper letters, 56 selfloop transitions, 27 changer transitions 1/88 dead transitions. [2021-03-25 09:00:09,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 88 transitions, 973 flow [2021-03-25 09:00:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:00:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:00:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2021-03-25 09:00:09,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3567073170731707 [2021-03-25 09:00:09,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 117 transitions. [2021-03-25 09:00:09,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 117 transitions. [2021-03-25 09:00:09,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:09,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 117 transitions. [2021-03-25 09:00:09,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,777 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 41.0) internal successors, (369), 9 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,777 INFO L185 Difference]: Start difference. First operand has 85 places, 75 transitions, 662 flow. Second operand 8 states and 117 transitions. [2021-03-25 09:00:09,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 88 transitions, 973 flow [2021-03-25 09:00:09,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 88 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:09,786 INFO L241 Difference]: Finished difference. Result has 93 places, 82 transitions, 807 flow [2021-03-25 09:00:09,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=807, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2021-03-25 09:00:09,786 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 77 predicate places. [2021-03-25 09:00:09,786 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:09,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 807 flow [2021-03-25 09:00:09,786 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 82 transitions, 807 flow [2021-03-25 09:00:09,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 82 transitions, 807 flow [2021-03-25 09:00:09,801 INFO L129 PetriNetUnfolder]: 65/177 cut-off events. [2021-03-25 09:00:09,801 INFO L130 PetriNetUnfolder]: For 1597/1611 co-relation queries the response was YES. [2021-03-25 09:00:09,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 177 events. 65/177 cut-off events. For 1597/1611 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 875 event pairs, 1 based on Foata normal form. 3/170 useless extension candidates. Maximal degree in co-relation 900. Up to 80 conditions per place. [2021-03-25 09:00:09,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-25 09:00:09,805 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:09,805 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:09,805 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 09:00:09,807 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 807 flow [2021-03-25 09:00:09,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:09,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:09,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-25 09:00:09,808 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:09,808 INFO L82 PathProgramCache]: Analyzing trace with hash -82732258, now seen corresponding path program 2 times [2021-03-25 09:00:09,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:09,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494531464] [2021-03-25 09:00:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:09,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:09,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:09,836 INFO L142 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size [2021-03-25 09:00:09,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:09,842 INFO L142 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size [2021-03-25 09:00:09,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:09,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:09,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:09,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:09,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494531464] [2021-03-25 09:00:09,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:09,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:09,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51422774] [2021-03-25 09:00:09,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:09,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:09,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:09,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:09,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2021-03-25 09:00:09,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 807 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:09,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2021-03-25 09:00:09,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:09,947 INFO L129 PetriNetUnfolder]: 80/200 cut-off events. [2021-03-25 09:00:09,947 INFO L130 PetriNetUnfolder]: For 2281/2281 co-relation queries the response was YES. [2021-03-25 09:00:09,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 200 events. 80/200 cut-off events. For 2281/2281 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 969 event pairs, 4 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 1218. Up to 93 conditions per place. [2021-03-25 09:00:09,949 INFO L132 encePairwiseOnDemand]: 35/41 looper letters, 76 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2021-03-25 09:00:09,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 92 transitions, 1113 flow [2021-03-25 09:00:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:09,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2021-03-25 09:00:09,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43414634146341463 [2021-03-25 09:00:09,950 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 89 transitions. [2021-03-25 09:00:09,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 89 transitions. [2021-03-25 09:00:09,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:09,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 89 transitions. [2021-03-25 09:00:09,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,952 INFO L185 Difference]: Start difference. First operand has 91 places, 82 transitions, 807 flow. Second operand 5 states and 89 transitions. [2021-03-25 09:00:09,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 92 transitions, 1113 flow [2021-03-25 09:00:09,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 92 transitions, 1031 flow, removed 28 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:09,963 INFO L241 Difference]: Finished difference. Result has 92 places, 84 transitions, 784 flow [2021-03-25 09:00:09,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=784, PETRI_PLACES=92, PETRI_TRANSITIONS=84} [2021-03-25 09:00:09,964 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 76 predicate places. [2021-03-25 09:00:09,964 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:09,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 784 flow [2021-03-25 09:00:09,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 784 flow [2021-03-25 09:00:09,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 784 flow [2021-03-25 09:00:09,983 INFO L129 PetriNetUnfolder]: 74/192 cut-off events. [2021-03-25 09:00:09,983 INFO L130 PetriNetUnfolder]: For 2398/2403 co-relation queries the response was YES. [2021-03-25 09:00:09,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 192 events. 74/192 cut-off events. For 2398/2403 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 948 event pairs, 1 based on Foata normal form. 1/184 useless extension candidates. Maximal degree in co-relation 1019. Up to 87 conditions per place. [2021-03-25 09:00:09,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:09,987 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:09,987 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:09,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 09:00:09,988 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 84 transitions, 784 flow [2021-03-25 09:00:09,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:09,988 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:09,988 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:09,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-25 09:00:09,988 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:09,989 INFO L82 PathProgramCache]: Analyzing trace with hash 158533800, now seen corresponding path program 1 times [2021-03-25 09:00:09,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:09,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346744628] [2021-03-25 09:00:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:10,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:10,024 INFO L142 QuantifierPusher]: treesize reduction 133, result has 14.2 percent of original size [2021-03-25 09:00:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:10,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:10,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:10,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346744628] [2021-03-25 09:00:10,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:10,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:10,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995558137] [2021-03-25 09:00:10,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:10,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:10,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:10,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:10,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2021-03-25 09:00:10,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 84 transitions, 784 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:10,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2021-03-25 09:00:10,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:10,140 INFO L129 PetriNetUnfolder]: 78/199 cut-off events. [2021-03-25 09:00:10,140 INFO L130 PetriNetUnfolder]: For 2643/2649 co-relation queries the response was YES. [2021-03-25 09:00:10,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 199 events. 78/199 cut-off events. For 2643/2649 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 929 event pairs, 5 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 1209. Up to 138 conditions per place. [2021-03-25 09:00:10,143 INFO L132 encePairwiseOnDemand]: 35/41 looper letters, 71 selfloop transitions, 10 changer transitions 0/86 dead transitions. [2021-03-25 09:00:10,143 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 86 transitions, 988 flow [2021-03-25 09:00:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-25 09:00:10,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4186991869918699 [2021-03-25 09:00:10,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-25 09:00:10,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-25 09:00:10,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:10,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-25 09:00:10,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,145 INFO L185 Difference]: Start difference. First operand has 92 places, 84 transitions, 784 flow. Second operand 6 states and 103 transitions. [2021-03-25 09:00:10,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 86 transitions, 988 flow [2021-03-25 09:00:10,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 86 transitions, 953 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:10,155 INFO L241 Difference]: Finished difference. Result has 95 places, 79 transitions, 769 flow [2021-03-25 09:00:10,155 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=769, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2021-03-25 09:00:10,155 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 79 predicate places. [2021-03-25 09:00:10,155 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:10,155 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 79 transitions, 769 flow [2021-03-25 09:00:10,155 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 79 transitions, 769 flow [2021-03-25 09:00:10,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 79 transitions, 769 flow [2021-03-25 09:00:10,171 INFO L129 PetriNetUnfolder]: 66/185 cut-off events. [2021-03-25 09:00:10,171 INFO L130 PetriNetUnfolder]: For 2114/2128 co-relation queries the response was YES. [2021-03-25 09:00:10,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 185 events. 66/185 cut-off events. For 2114/2128 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 925 event pairs, 3 based on Foata normal form. 3/177 useless extension candidates. Maximal degree in co-relation 951. Up to 81 conditions per place. [2021-03-25 09:00:10,173 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:10,389 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:10,389 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:10,389 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 234 [2021-03-25 09:00:10,389 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 773 flow [2021-03-25 09:00:10,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:10,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:10,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-25 09:00:10,390 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1691381374, now seen corresponding path program 2 times [2021-03-25 09:00:10,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:10,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010512850] [2021-03-25 09:00:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,419 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-25 09:00:10,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:10,424 INFO L142 QuantifierPusher]: treesize reduction 201, result has 17.3 percent of original size [2021-03-25 09:00:10,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:00:10,442 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 09:00:10,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:10,453 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:10,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:10,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:10,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010512850] [2021-03-25 09:00:10,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954413072] [2021-03-25 09:00:10,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-03-25 09:00:10,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:10,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:10,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:10,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:10,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:10,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:10,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:10,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:10,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,520 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:10,520 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,521 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:10,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:10,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:10,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:00:10,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:10,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:00:10,544 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-25 09:00:10,545 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:00:10,546 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:00:10,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:00:10,660 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-25 09:00:10,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:10,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-25 09:00:10,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-25 09:00:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:00:10,668 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-25 09:00:10,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,670 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:10,676 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:10,677 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,677 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,679 INFO L142 QuantifierPusher]: treesize reduction 240, result has 36.7 percent of original size [2021-03-25 09:00:10,681 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:10,681 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,682 INFO L142 QuantifierPusher]: treesize reduction 81, result has 61.2 percent of original size [2021-03-25 09:00:10,683 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:10,684 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,685 INFO L142 QuantifierPusher]: treesize reduction 127, result has 27.0 percent of original size [2021-03-25 09:00:10,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:10,688 INFO L147 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size 29 [2021-03-25 09:00:10,689 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-25 09:00:10,689 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-25 09:00:10,690 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-03-25 09:00:10,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:10,721 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:00:10,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:10,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:10,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:10,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:10,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:00:10,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,729 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:00:10,730 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:10,730 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,732 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:00:10,732 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:10,733 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,734 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:00:10,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:10,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:10,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:10,757 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:10,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:10,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:10,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:10,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,764 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:10,764 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:10,765 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,765 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:10,766 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:10,767 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:10,768 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-25 09:00:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:10,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:10,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:10,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:10,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026613458] [2021-03-25 09:00:10,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:10,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:10,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:10,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:10,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2021-03-25 09:00:10,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 773 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:10,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:10,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2021-03-25 09:00:10,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:11,218 INFO L129 PetriNetUnfolder]: 80/214 cut-off events. [2021-03-25 09:00:11,218 INFO L130 PetriNetUnfolder]: For 2833/2837 co-relation queries the response was YES. [2021-03-25 09:00:11,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1437 conditions, 214 events. 80/214 cut-off events. For 2833/2837 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1070 event pairs, 4 based on Foata normal form. 4/206 useless extension candidates. Maximal degree in co-relation 1344. Up to 135 conditions per place. [2021-03-25 09:00:11,220 INFO L132 encePairwiseOnDemand]: 32/42 looper letters, 62 selfloop transitions, 24 changer transitions 3/93 dead transitions. [2021-03-25 09:00:11,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 93 transitions, 1210 flow [2021-03-25 09:00:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:00:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:00:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 168 transitions. [2021-03-25 09:00:11,221 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2021-03-25 09:00:11,221 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 168 transitions. [2021-03-25 09:00:11,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 168 transitions. [2021-03-25 09:00:11,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:11,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 168 transitions. [2021-03-25 09:00:11,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.0) internal successors, (168), 12 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:11,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 42.0) internal successors, (546), 13 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:11,223 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 42.0) internal successors, (546), 13 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:11,223 INFO L185 Difference]: Start difference. First operand has 95 places, 79 transitions, 773 flow. Second operand 12 states and 168 transitions. [2021-03-25 09:00:11,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 93 transitions, 1210 flow [2021-03-25 09:00:11,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 93 transitions, 1169 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:11,234 INFO L241 Difference]: Finished difference. Result has 106 places, 81 transitions, 886 flow [2021-03-25 09:00:11,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=886, PETRI_PLACES=106, PETRI_TRANSITIONS=81} [2021-03-25 09:00:11,234 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 90 predicate places. [2021-03-25 09:00:11,234 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:11,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 81 transitions, 886 flow [2021-03-25 09:00:11,235 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 81 transitions, 886 flow [2021-03-25 09:00:11,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 81 transitions, 886 flow [2021-03-25 09:00:11,253 INFO L129 PetriNetUnfolder]: 77/196 cut-off events. [2021-03-25 09:00:11,253 INFO L130 PetriNetUnfolder]: For 3937/3956 co-relation queries the response was YES. [2021-03-25 09:00:11,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 196 events. 77/196 cut-off events. For 3937/3956 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 989 event pairs, 4 based on Foata normal form. 1/185 useless extension candidates. Maximal degree in co-relation 1286. Up to 98 conditions per place. [2021-03-25 09:00:11,255 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 09:00:11,496 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:11,496 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:11,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 262 [2021-03-25 09:00:11,497 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 81 transitions, 898 flow [2021-03-25 09:00:11,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:11,497 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:11,497 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:11,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2021-03-25 09:00:11,720 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:11,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:11,721 INFO L82 PathProgramCache]: Analyzing trace with hash -101729559, now seen corresponding path program 3 times [2021-03-25 09:00:11,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:11,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490724031] [2021-03-25 09:00:11,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:11,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:11,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,761 INFO L142 QuantifierPusher]: treesize reduction 36, result has 62.1 percent of original size [2021-03-25 09:00:11,761 INFO L147 QuantifierPusher]: treesize reduction 4, result has 93.2 percent of original size 55 [2021-03-25 09:00:11,807 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-25 09:00:11,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:11,825 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:11,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:11,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:11,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490724031] [2021-03-25 09:00:11,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025585511] [2021-03-25 09:00:11,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:11,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:00:11,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:11,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:00:11,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:11,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:11,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:11,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:11,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:11,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:11,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:11,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,880 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:11,881 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:11,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:11,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:11,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,885 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:11,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 09:00:11,887 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-25 09:00:11,888 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-25 09:00:11,888 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-25 09:00:11,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:11,929 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-03-25 09:00:11,929 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:11,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:00:11,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-25 09:00:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-25 09:00:11,935 INFO L142 QuantifierPusher]: treesize reduction 265, result has 42.1 percent of original size [2021-03-25 09:00:11,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,937 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:11,938 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:11,939 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,942 INFO L142 QuantifierPusher]: treesize reduction 212, result has 36.3 percent of original size [2021-03-25 09:00:11,943 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:11,944 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,944 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,944 INFO L142 QuantifierPusher]: treesize reduction 124, result has 27.1 percent of original size [2021-03-25 09:00:11,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:11,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:11,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:11,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:11,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:11,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:11,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:11,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:11,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:11,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,979 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:00:11,979 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:11,981 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:11,982 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-25 09:00:11,982 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-25 09:00:11,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:12,004 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:12,005 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:12,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:12,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:12,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:12,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:12,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:12,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:12,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:12,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:12,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,011 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:00:12,011 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:12,012 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,014 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:00:12,014 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:12,015 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:12,016 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:00:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:12,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:12,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:12,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:12,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326242009] [2021-03-25 09:00:12,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:12,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:12,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:12,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:12,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2021-03-25 09:00:12,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 81 transitions, 898 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:12,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:12,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2021-03-25 09:00:12,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:12,530 INFO L129 PetriNetUnfolder]: 83/219 cut-off events. [2021-03-25 09:00:12,530 INFO L130 PetriNetUnfolder]: For 3822/3830 co-relation queries the response was YES. [2021-03-25 09:00:12,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 219 events. 83/219 cut-off events. For 3822/3830 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1080 event pairs, 6 based on Foata normal form. 2/209 useless extension candidates. Maximal degree in co-relation 1537. Up to 160 conditions per place. [2021-03-25 09:00:12,535 INFO L132 encePairwiseOnDemand]: 34/43 looper letters, 68 selfloop transitions, 21 changer transitions 2/95 dead transitions. [2021-03-25 09:00:12,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 95 transitions, 1321 flow [2021-03-25 09:00:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:00:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:00:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 154 transitions. [2021-03-25 09:00:12,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32558139534883723 [2021-03-25 09:00:12,536 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 154 transitions. [2021-03-25 09:00:12,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 154 transitions. [2021-03-25 09:00:12,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:12,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 154 transitions. [2021-03-25 09:00:12,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:12,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:12,537 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:12,537 INFO L185 Difference]: Start difference. First operand has 104 places, 81 transitions, 898 flow. Second operand 11 states and 154 transitions. [2021-03-25 09:00:12,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 95 transitions, 1321 flow [2021-03-25 09:00:12,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 95 transitions, 1218 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:12,551 INFO L241 Difference]: Finished difference. Result has 112 places, 88 transitions, 1019 flow [2021-03-25 09:00:12,551 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1019, PETRI_PLACES=112, PETRI_TRANSITIONS=88} [2021-03-25 09:00:12,551 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 96 predicate places. [2021-03-25 09:00:12,551 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:12,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 88 transitions, 1019 flow [2021-03-25 09:00:12,552 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 88 transitions, 1019 flow [2021-03-25 09:00:12,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 88 transitions, 1019 flow [2021-03-25 09:00:12,572 INFO L129 PetriNetUnfolder]: 74/205 cut-off events. [2021-03-25 09:00:12,572 INFO L130 PetriNetUnfolder]: For 3752/3773 co-relation queries the response was YES. [2021-03-25 09:00:12,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 205 events. 74/205 cut-off events. For 3752/3773 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1047 event pairs, 4 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 1322. Up to 95 conditions per place. [2021-03-25 09:00:12,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:13,003 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:13,003 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:13,003 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 452 [2021-03-25 09:00:13,004 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 88 transitions, 1024 flow [2021-03-25 09:00:13,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:13,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:13,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:13,224 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:13,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:13,224 INFO L82 PathProgramCache]: Analyzing trace with hash 487472178, now seen corresponding path program 1 times [2021-03-25 09:00:13,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:13,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258403430] [2021-03-25 09:00:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:13,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,250 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-25 09:00:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:13,254 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-25 09:00:13,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:13,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:13,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258403430] [2021-03-25 09:00:13,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155880820] [2021-03-25 09:00:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:13,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 09:00:13,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:13,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:13,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:13,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,315 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:13,316 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,317 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:13,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:13,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:13,334 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-25 09:00:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:13,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:13,349 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-25 09:00:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:13,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:13,357 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-25 09:00:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,360 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:13,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:13,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:13,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 09:00:13,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667030373] [2021-03-25 09:00:13,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:00:13,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:13,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:00:13,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:00:13,368 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2021-03-25 09:00:13,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 88 transitions, 1024 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:13,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2021-03-25 09:00:13,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:13,493 INFO L129 PetriNetUnfolder]: 85/220 cut-off events. [2021-03-25 09:00:13,493 INFO L130 PetriNetUnfolder]: For 4293/4299 co-relation queries the response was YES. [2021-03-25 09:00:13,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 220 events. 85/220 cut-off events. For 4293/4299 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1095 event pairs, 2 based on Foata normal form. 7/217 useless extension candidates. Maximal degree in co-relation 1586. Up to 125 conditions per place. [2021-03-25 09:00:13,496 INFO L132 encePairwiseOnDemand]: 40/46 looper letters, 69 selfloop transitions, 14 changer transitions 0/95 dead transitions. [2021-03-25 09:00:13,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 95 transitions, 1306 flow [2021-03-25 09:00:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2021-03-25 09:00:13,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4311594202898551 [2021-03-25 09:00:13,497 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 119 transitions. [2021-03-25 09:00:13,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 119 transitions. [2021-03-25 09:00:13,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:13,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 119 transitions. [2021-03-25 09:00:13,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,498 INFO L185 Difference]: Start difference. First operand has 110 places, 88 transitions, 1024 flow. Second operand 6 states and 119 transitions. [2021-03-25 09:00:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 95 transitions, 1306 flow [2021-03-25 09:00:13,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 95 transitions, 1154 flow, removed 71 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:13,514 INFO L241 Difference]: Finished difference. Result has 112 places, 90 transitions, 932 flow [2021-03-25 09:00:13,514 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=932, PETRI_PLACES=112, PETRI_TRANSITIONS=90} [2021-03-25 09:00:13,514 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 96 predicate places. [2021-03-25 09:00:13,514 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:13,514 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 90 transitions, 932 flow [2021-03-25 09:00:13,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 90 transitions, 932 flow [2021-03-25 09:00:13,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 90 transitions, 932 flow [2021-03-25 09:00:13,538 INFO L129 PetriNetUnfolder]: 78/211 cut-off events. [2021-03-25 09:00:13,538 INFO L130 PetriNetUnfolder]: For 4026/4043 co-relation queries the response was YES. [2021-03-25 09:00:13,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 211 events. 78/211 cut-off events. For 4026/4043 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1066 event pairs, 2 based on Foata normal form. 4/204 useless extension candidates. Maximal degree in co-relation 1360. Up to 99 conditions per place. [2021-03-25 09:00:13,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:13,544 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:13,545 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:13,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 09:00:13,545 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 90 transitions, 932 flow [2021-03-25 09:00:13,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:13,545 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:13,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:13,768 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:13,769 INFO L82 PathProgramCache]: Analyzing trace with hash -476848648, now seen corresponding path program 1 times [2021-03-25 09:00:13,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:13,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985363052] [2021-03-25 09:00:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:13,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:13,794 INFO L142 QuantifierPusher]: treesize reduction 42, result has 35.4 percent of original size [2021-03-25 09:00:13,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:13,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:13,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:13,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985363052] [2021-03-25 09:00:13,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032643932] [2021-03-25 09:00:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:13,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 09:00:13,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:13,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:13,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:13,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:13,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:13,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,859 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:13,859 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:13,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:00:13,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:00:13,862 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-25 09:00:13,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:00:13,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:00:13,882 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.5 percent of original size [2021-03-25 09:00:13,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:13,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,883 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:00:13,886 INFO L142 QuantifierPusher]: treesize reduction 160, result has 41.8 percent of original size [2021-03-25 09:00:13,886 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:13,888 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,889 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-25 09:00:13,890 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:13,891 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:13,891 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-25 09:00:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:13,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:13,910 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:00:13,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:13,912 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:13,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:13,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:13,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:13,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:00:13,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222346001] [2021-03-25 09:00:13,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:00:13,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:13,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:00:13,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:00:13,918 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-25 09:00:13,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 90 transitions, 932 flow. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:13,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:13,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-25 09:00:13,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:14,079 INFO L129 PetriNetUnfolder]: 88/222 cut-off events. [2021-03-25 09:00:14,080 INFO L130 PetriNetUnfolder]: For 4554/4574 co-relation queries the response was YES. [2021-03-25 09:00:14,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1716 conditions, 222 events. 88/222 cut-off events. For 4554/4574 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1067 event pairs, 6 based on Foata normal form. 8/219 useless extension candidates. Maximal degree in co-relation 1644. Up to 158 conditions per place. [2021-03-25 09:00:14,082 INFO L132 encePairwiseOnDemand]: 37/46 looper letters, 74 selfloop transitions, 16 changer transitions 0/96 dead transitions. [2021-03-25 09:00:14,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 96 transitions, 1371 flow [2021-03-25 09:00:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-25 09:00:14,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34782608695652173 [2021-03-25 09:00:14,083 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-25 09:00:14,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-25 09:00:14,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:14,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-25 09:00:14,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 16.0) internal successors, (160), 10 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,085 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,085 INFO L185 Difference]: Start difference. First operand has 112 places, 90 transitions, 932 flow. Second operand 10 states and 160 transitions. [2021-03-25 09:00:14,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 96 transitions, 1371 flow [2021-03-25 09:00:14,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 96 transitions, 1321 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:14,098 INFO L241 Difference]: Finished difference. Result has 116 places, 90 transitions, 999 flow [2021-03-25 09:00:14,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=999, PETRI_PLACES=116, PETRI_TRANSITIONS=90} [2021-03-25 09:00:14,098 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 100 predicate places. [2021-03-25 09:00:14,098 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:14,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 90 transitions, 999 flow [2021-03-25 09:00:14,099 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 90 transitions, 999 flow [2021-03-25 09:00:14,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 90 transitions, 999 flow [2021-03-25 09:00:14,118 INFO L129 PetriNetUnfolder]: 80/209 cut-off events. [2021-03-25 09:00:14,119 INFO L130 PetriNetUnfolder]: For 4095/4117 co-relation queries the response was YES. [2021-03-25 09:00:14,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 209 events. 80/209 cut-off events. For 4095/4117 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1024 event pairs, 2 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 1414. Up to 103 conditions per place. [2021-03-25 09:00:14,121 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 09:00:14,124 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:14,124 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:14,124 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 09:00:14,124 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 90 transitions, 999 flow [2021-03-25 09:00:14,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,124 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:14,124 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:14,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-03-25 09:00:14,332 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1629301058, now seen corresponding path program 1 times [2021-03-25 09:00:14,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:14,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329642792] [2021-03-25 09:00:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:14,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,357 INFO L142 QuantifierPusher]: treesize reduction 111, result has 15.3 percent of original size [2021-03-25 09:00:14,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:00:14,364 INFO L142 QuantifierPusher]: treesize reduction 130, result has 14.5 percent of original size [2021-03-25 09:00:14,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:14,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:14,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329642792] [2021-03-25 09:00:14,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:14,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:14,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767961210] [2021-03-25 09:00:14,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:14,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:14,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:14,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:14,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-25 09:00:14,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 90 transitions, 999 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:14,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-25 09:00:14,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:14,467 INFO L129 PetriNetUnfolder]: 88/225 cut-off events. [2021-03-25 09:00:14,468 INFO L130 PetriNetUnfolder]: For 4775/4779 co-relation queries the response was YES. [2021-03-25 09:00:14,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 225 events. 88/225 cut-off events. For 4775/4779 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1099 event pairs, 2 based on Foata normal form. 3/216 useless extension candidates. Maximal degree in co-relation 1682. Up to 149 conditions per place. [2021-03-25 09:00:14,470 INFO L132 encePairwiseOnDemand]: 38/46 looper letters, 69 selfloop transitions, 18 changer transitions 0/93 dead transitions. [2021-03-25 09:00:14,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 93 transitions, 1280 flow [2021-03-25 09:00:14,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:14,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 106 transitions. [2021-03-25 09:00:14,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38405797101449274 [2021-03-25 09:00:14,471 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 106 transitions. [2021-03-25 09:00:14,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 106 transitions. [2021-03-25 09:00:14,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:14,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 106 transitions. [2021-03-25 09:00:14,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,473 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 46.0) internal successors, (322), 7 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,473 INFO L185 Difference]: Start difference. First operand has 116 places, 90 transitions, 999 flow. Second operand 6 states and 106 transitions. [2021-03-25 09:00:14,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 93 transitions, 1280 flow [2021-03-25 09:00:14,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 93 transitions, 1208 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-03-25 09:00:14,487 INFO L241 Difference]: Finished difference. Result has 113 places, 88 transitions, 993 flow [2021-03-25 09:00:14,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=993, PETRI_PLACES=113, PETRI_TRANSITIONS=88} [2021-03-25 09:00:14,488 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 97 predicate places. [2021-03-25 09:00:14,488 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:14,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 88 transitions, 993 flow [2021-03-25 09:00:14,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 88 transitions, 993 flow [2021-03-25 09:00:14,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 88 transitions, 993 flow [2021-03-25 09:00:14,507 INFO L129 PetriNetUnfolder]: 80/211 cut-off events. [2021-03-25 09:00:14,508 INFO L130 PetriNetUnfolder]: For 4816/4846 co-relation queries the response was YES. [2021-03-25 09:00:14,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 211 events. 80/211 cut-off events. For 4816/4846 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1053 event pairs, 3 based on Foata normal form. 3/201 useless extension candidates. Maximal degree in co-relation 1463. Up to 107 conditions per place. [2021-03-25 09:00:14,510 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:14,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:14,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:14,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-25 09:00:14,513 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 88 transitions, 993 flow [2021-03-25 09:00:14,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:14,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:14,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-25 09:00:14,513 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:14,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1354735563, now seen corresponding path program 1 times [2021-03-25 09:00:14,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:14,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075146303] [2021-03-25 09:00:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:14,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:14,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:14,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:14,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075146303] [2021-03-25 09:00:14,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:14,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:14,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607927587] [2021-03-25 09:00:14,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:14,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:14,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:14,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:14,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2021-03-25 09:00:14,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 88 transitions, 993 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:14,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2021-03-25 09:00:14,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:14,658 INFO L129 PetriNetUnfolder]: 87/223 cut-off events. [2021-03-25 09:00:14,658 INFO L130 PetriNetUnfolder]: For 5010/5014 co-relation queries the response was YES. [2021-03-25 09:00:14,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 223 events. 87/223 cut-off events. For 5010/5014 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1087 event pairs, 5 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 1682. Up to 155 conditions per place. [2021-03-25 09:00:14,661 INFO L132 encePairwiseOnDemand]: 37/46 looper letters, 72 selfloop transitions, 12 changer transitions 1/91 dead transitions. [2021-03-25 09:00:14,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 91 transitions, 1236 flow [2021-03-25 09:00:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:14,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2021-03-25 09:00:14,662 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39565217391304347 [2021-03-25 09:00:14,662 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 91 transitions. [2021-03-25 09:00:14,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 91 transitions. [2021-03-25 09:00:14,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:14,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 91 transitions. [2021-03-25 09:00:14,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,663 INFO L185 Difference]: Start difference. First operand has 113 places, 88 transitions, 993 flow. Second operand 5 states and 91 transitions. [2021-03-25 09:00:14,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 91 transitions, 1236 flow [2021-03-25 09:00:14,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 91 transitions, 1171 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:14,678 INFO L241 Difference]: Finished difference. Result has 113 places, 86 transitions, 922 flow [2021-03-25 09:00:14,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=922, PETRI_PLACES=113, PETRI_TRANSITIONS=86} [2021-03-25 09:00:14,678 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 97 predicate places. [2021-03-25 09:00:14,678 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:14,678 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 86 transitions, 922 flow [2021-03-25 09:00:14,678 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 86 transitions, 922 flow [2021-03-25 09:00:14,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 86 transitions, 922 flow [2021-03-25 09:00:14,699 INFO L129 PetriNetUnfolder]: 86/216 cut-off events. [2021-03-25 09:00:14,700 INFO L130 PetriNetUnfolder]: For 5541/5562 co-relation queries the response was YES. [2021-03-25 09:00:14,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1620 conditions, 216 events. 86/216 cut-off events. For 5541/5562 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1094 event pairs, 3 based on Foata normal form. 2/205 useless extension candidates. Maximal degree in co-relation 1551. Up to 116 conditions per place. [2021-03-25 09:00:14,702 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-25 09:00:14,704 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:14,704 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:14,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 09:00:14,706 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 86 transitions, 922 flow [2021-03-25 09:00:14,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:14,706 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:14,706 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:14,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-25 09:00:14,706 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:14,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:14,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1375614873, now seen corresponding path program 1 times [2021-03-25 09:00:14,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:14,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474897164] [2021-03-25 09:00:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:14,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:14,744 INFO L142 QuantifierPusher]: treesize reduction 354, result has 24.0 percent of original size [2021-03-25 09:00:14,744 INFO L147 QuantifierPusher]: treesize reduction 73, result has 34.8 percent of original size 39 [2021-03-25 09:00:14,793 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 09:00:14,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:14,807 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:14,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:14,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:14,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474897164] [2021-03-25 09:00:14,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126988373] [2021-03-25 09:00:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:14,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:00:14,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:14,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:14,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:14,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:14,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:14,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,863 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:14,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:14,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:14,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,865 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:14,865 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:14,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:14,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:14,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:14,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 09:00:14,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:14,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:14,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:14,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-03-25 09:00:14,872 INFO L142 QuantifierPusher]: treesize reduction 265, result has 33.1 percent of original size [2021-03-25 09:00:14,873 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size 118 [2021-03-25 09:00:14,873 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size [2021-03-25 09:00:14,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-03-25 09:00:14,992 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-03-25 09:00:14,993 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.2 percent of original size [2021-03-25 09:00:14,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:14,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:15,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:00:15,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-25 09:00:15,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-25 09:00:15,006 INFO L142 QuantifierPusher]: treesize reduction 23, result has 88.2 percent of original size [2021-03-25 09:00:15,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,008 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:15,009 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:15,010 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,011 INFO L142 QuantifierPusher]: treesize reduction 188, result has 37.5 percent of original size [2021-03-25 09:00:15,011 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:15,012 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,013 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-25 09:00:15,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:15,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:15,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:15,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:15,047 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:15,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:15,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:15,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:15,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,055 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:00:15,055 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:15,056 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,058 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-25 09:00:15,058 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:15,059 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,060 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-25 09:00:15,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:15,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:15,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:15,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:15,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:15,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,088 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:00:15,088 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:15,089 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,089 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:15,089 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:15,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:15,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:15,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:15,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:15,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737020684] [2021-03-25 09:00:15,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:15,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:15,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:15,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:15,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2021-03-25 09:00:15,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 86 transitions, 922 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:15,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:15,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2021-03-25 09:00:15,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:15,623 INFO L129 PetriNetUnfolder]: 95/263 cut-off events. [2021-03-25 09:00:15,624 INFO L130 PetriNetUnfolder]: For 6199/6219 co-relation queries the response was YES. [2021-03-25 09:00:15,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 263 events. 95/263 cut-off events. For 6199/6219 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1392 event pairs, 8 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 1961. Up to 181 conditions per place. [2021-03-25 09:00:15,627 INFO L132 encePairwiseOnDemand]: 39/46 looper letters, 86 selfloop transitions, 17 changer transitions 4/111 dead transitions. [2021-03-25 09:00:15,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 111 transitions, 1536 flow [2021-03-25 09:00:15,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:15,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2021-03-25 09:00:15,628 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3217391304347826 [2021-03-25 09:00:15,628 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 148 transitions. [2021-03-25 09:00:15,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 148 transitions. [2021-03-25 09:00:15,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:15,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 148 transitions. [2021-03-25 09:00:15,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:15,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:15,629 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 46.0) internal successors, (506), 11 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:15,629 INFO L185 Difference]: Start difference. First operand has 111 places, 86 transitions, 922 flow. Second operand 10 states and 148 transitions. [2021-03-25 09:00:15,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 111 transitions, 1536 flow [2021-03-25 09:00:15,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 1482 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:15,648 INFO L241 Difference]: Finished difference. Result has 120 places, 98 transitions, 1149 flow [2021-03-25 09:00:15,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1149, PETRI_PLACES=120, PETRI_TRANSITIONS=98} [2021-03-25 09:00:15,649 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 104 predicate places. [2021-03-25 09:00:15,649 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:15,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 98 transitions, 1149 flow [2021-03-25 09:00:15,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 98 transitions, 1149 flow [2021-03-25 09:00:15,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 98 transitions, 1149 flow [2021-03-25 09:00:15,673 INFO L129 PetriNetUnfolder]: 89/246 cut-off events. [2021-03-25 09:00:15,673 INFO L130 PetriNetUnfolder]: For 6317/6329 co-relation queries the response was YES. [2021-03-25 09:00:15,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 246 events. 89/246 cut-off events. For 6317/6329 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1315 event pairs, 7 based on Foata normal form. 6/248 useless extension candidates. Maximal degree in co-relation 1753. Up to 125 conditions per place. [2021-03-25 09:00:15,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-25 09:00:15,882 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:15,882 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:15,882 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 233 [2021-03-25 09:00:15,882 INFO L480 AbstractCegarLoop]: Abstraction has has 119 places, 98 transitions, 1156 flow [2021-03-25 09:00:15,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:15,883 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:15,883 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:16,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-03-25 09:00:16,088 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:16,088 INFO L82 PathProgramCache]: Analyzing trace with hash -397249885, now seen corresponding path program 2 times [2021-03-25 09:00:16,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:16,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250682400] [2021-03-25 09:00:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:16,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:16,112 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.5 percent of original size [2021-03-25 09:00:16,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:16,128 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size [2021-03-25 09:00:16,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:16,141 INFO L142 QuantifierPusher]: treesize reduction -1, result has 112.5 percent of original size [2021-03-25 09:00:16,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:16,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:16,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250682400] [2021-03-25 09:00:16,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043525050] [2021-03-25 09:00:16,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:16,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:16,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:16,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:00:16,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:16,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:16,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:16,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:16,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:16,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:16,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,200 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:16,200 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:16,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:16,201 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-25 09:00:16,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:16,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:16,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-25 09:00:16,204 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-25 09:00:16,205 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-25 09:00:16,206 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-25 09:00:16,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:16,272 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-25 09:00:16,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:16,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:16,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:16,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:16,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:00:16,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,280 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:16,280 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:16,280 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,281 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:16,281 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:16,281 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:16,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,284 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:16,284 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,285 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:00:16,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:16,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:16,287 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 09:00:16,287 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-25 09:00:16,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:16,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:16,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 09:00:16,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:00:16,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-25 09:00:16,299 INFO L142 QuantifierPusher]: treesize reduction 158, result has 43.0 percent of original size [2021-03-25 09:00:16,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,300 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:16,301 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:16,301 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,302 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.1 percent of original size [2021-03-25 09:00:16,303 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:16,303 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,304 INFO L142 QuantifierPusher]: treesize reduction 70, result has 49.6 percent of original size [2021-03-25 09:00:16,304 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:16,305 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,305 INFO L142 QuantifierPusher]: treesize reduction 33, result has 29.8 percent of original size [2021-03-25 09:00:16,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:00:16,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:16,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:16,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:16,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:00:16,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:16,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:16,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:16,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:00:16,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408198899] [2021-03-25 09:00:16,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:00:16,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:16,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:00:16,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:00:16,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2021-03-25 09:00:16,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 98 transitions, 1156 flow. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:16,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:16,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2021-03-25 09:00:16,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:16,605 INFO L129 PetriNetUnfolder]: 108/301 cut-off events. [2021-03-25 09:00:16,605 INFO L130 PetriNetUnfolder]: For 7791/7811 co-relation queries the response was YES. [2021-03-25 09:00:16,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 301 events. 108/301 cut-off events. For 7791/7811 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1699 event pairs, 7 based on Foata normal form. 2/299 useless extension candidates. Maximal degree in co-relation 2412. Up to 162 conditions per place. [2021-03-25 09:00:16,609 INFO L132 encePairwiseOnDemand]: 38/47 looper letters, 95 selfloop transitions, 27 changer transitions 2/128 dead transitions. [2021-03-25 09:00:16,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 128 transitions, 1888 flow [2021-03-25 09:00:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 100 transitions. [2021-03-25 09:00:16,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3546099290780142 [2021-03-25 09:00:16,616 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 100 transitions. [2021-03-25 09:00:16,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 100 transitions. [2021-03-25 09:00:16,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:16,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 100 transitions. [2021-03-25 09:00:16,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:16,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:16,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 47.0) internal successors, (329), 7 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:16,617 INFO L185 Difference]: Start difference. First operand has 119 places, 98 transitions, 1156 flow. Second operand 6 states and 100 transitions. [2021-03-25 09:00:16,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 128 transitions, 1888 flow [2021-03-25 09:00:16,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 128 transitions, 1764 flow, removed 60 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:16,652 INFO L241 Difference]: Finished difference. Result has 125 places, 102 transitions, 1242 flow [2021-03-25 09:00:16,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1242, PETRI_PLACES=125, PETRI_TRANSITIONS=102} [2021-03-25 09:00:16,652 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 109 predicate places. [2021-03-25 09:00:16,652 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:16,653 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 102 transitions, 1242 flow [2021-03-25 09:00:16,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 102 transitions, 1242 flow [2021-03-25 09:00:16,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 102 transitions, 1242 flow [2021-03-25 09:00:16,678 INFO L129 PetriNetUnfolder]: 102/294 cut-off events. [2021-03-25 09:00:16,678 INFO L130 PetriNetUnfolder]: For 7730/7741 co-relation queries the response was YES. [2021-03-25 09:00:16,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 294 events. 102/294 cut-off events. For 7730/7741 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1733 event pairs, 13 based on Foata normal form. 10/301 useless extension candidates. Maximal degree in co-relation 2134. Up to 142 conditions per place. [2021-03-25 09:00:16,680 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-25 09:00:16,820 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:16,821 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:16,821 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 09:00:16,821 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 1250 flow [2021-03-25 09:00:16,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:16,821 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:16,821 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:17,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable95 [2021-03-25 09:00:17,036 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:17,036 INFO L82 PathProgramCache]: Analyzing trace with hash -340944895, now seen corresponding path program 3 times [2021-03-25 09:00:17,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:17,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124366554] [2021-03-25 09:00:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:17,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:17,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:17,089 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-25 09:00:17,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:17,104 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:17,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:17,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:17,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124366554] [2021-03-25 09:00:17,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563350400] [2021-03-25 09:00:17,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:17,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:00:17,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:17,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 09:00:17,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:17,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:17,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:17,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:17,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:17,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:17,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,155 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:17,155 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:17,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:17,158 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-25 09:00:17,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:17,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:17,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-25 09:00:17,174 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-25 09:00:17,175 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-25 09:00:17,176 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-25 09:00:17,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:17,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:17,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-25 09:00:17,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-25 09:00:17,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:00:17,253 INFO L142 QuantifierPusher]: treesize reduction 265, result has 44.8 percent of original size [2021-03-25 09:00:17,254 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,255 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:17,255 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:17,256 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,256 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,257 INFO L142 QuantifierPusher]: treesize reduction 238, result has 36.9 percent of original size [2021-03-25 09:00:17,257 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:17,258 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,258 INFO L142 QuantifierPusher]: treesize reduction 148, result has 26.0 percent of original size [2021-03-25 09:00:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:17,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:17,297 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:00:17,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:17,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,299 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:17,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:17,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:00:17,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,302 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,303 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:00:17,303 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:17,307 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,309 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:00:17,309 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:17,312 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,313 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:00:17,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:17,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:17,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:17,339 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:17,340 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:17,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:17,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:17,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:17,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:17,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,348 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,349 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:17,349 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:17,350 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,351 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:17,352 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:17,352 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:17,353 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:00:17,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:17,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:17,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-25 09:00:17,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-03-25 09:00:17,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144580624] [2021-03-25 09:00:17,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:00:17,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:17,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:00:17,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:17,377 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2021-03-25 09:00:17,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 1250 flow. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:17,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:17,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2021-03-25 09:00:17,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:17,729 INFO L129 PetriNetUnfolder]: 106/295 cut-off events. [2021-03-25 09:00:17,729 INFO L130 PetriNetUnfolder]: For 7583/7607 co-relation queries the response was YES. [2021-03-25 09:00:17,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 295 events. 106/295 cut-off events. For 7583/7607 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1654 event pairs, 8 based on Foata normal form. 3/295 useless extension candidates. Maximal degree in co-relation 2355. Up to 161 conditions per place. [2021-03-25 09:00:17,732 INFO L132 encePairwiseOnDemand]: 37/48 looper letters, 90 selfloop transitions, 28 changer transitions 4/126 dead transitions. [2021-03-25 09:00:17,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 126 transitions, 1873 flow [2021-03-25 09:00:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 116 transitions. [2021-03-25 09:00:17,739 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34523809523809523 [2021-03-25 09:00:17,739 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 116 transitions. [2021-03-25 09:00:17,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 116 transitions. [2021-03-25 09:00:17,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:17,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 116 transitions. [2021-03-25 09:00:17,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:17,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 48.0) internal successors, (384), 8 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:17,740 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 48.0) internal successors, (384), 8 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:17,740 INFO L185 Difference]: Start difference. First operand has 124 places, 102 transitions, 1250 flow. Second operand 7 states and 116 transitions. [2021-03-25 09:00:17,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 126 transitions, 1873 flow [2021-03-25 09:00:17,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 126 transitions, 1768 flow, removed 40 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:17,765 INFO L241 Difference]: Finished difference. Result has 130 places, 103 transitions, 1290 flow [2021-03-25 09:00:17,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1158, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=130, PETRI_TRANSITIONS=103} [2021-03-25 09:00:17,765 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 114 predicate places. [2021-03-25 09:00:17,765 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:17,765 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 103 transitions, 1290 flow [2021-03-25 09:00:17,765 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 103 transitions, 1290 flow [2021-03-25 09:00:17,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 103 transitions, 1290 flow [2021-03-25 09:00:17,794 INFO L129 PetriNetUnfolder]: 99/279 cut-off events. [2021-03-25 09:00:17,794 INFO L130 PetriNetUnfolder]: For 5835/5860 co-relation queries the response was YES. [2021-03-25 09:00:17,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 279 events. 99/279 cut-off events. For 5835/5860 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1608 event pairs, 11 based on Foata normal form. 3/273 useless extension candidates. Maximal degree in co-relation 1998. Up to 138 conditions per place. [2021-03-25 09:00:17,797 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-25 09:00:18,016 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:18,016 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:18,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 251 [2021-03-25 09:00:18,017 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 103 transitions, 1300 flow [2021-03-25 09:00:18,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:18,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:18,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:18,236 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:18,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:18,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1147123556, now seen corresponding path program 1 times [2021-03-25 09:00:18,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:18,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142654088] [2021-03-25 09:00:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:18,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,251 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-25 09:00:18,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:18,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:18,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142654088] [2021-03-25 09:00:18,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418980531] [2021-03-25 09:00:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:18,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 09:00:18,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:18,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:18,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:18,323 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:00:18,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:18,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:18,341 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-25 09:00:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:18,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:18,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:18,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:18,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:18,349 INFO L142 QuantifierPusher]: treesize reduction 234, result has 7.9 percent of original size [2021-03-25 09:00:18,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,351 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:18,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:18,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:18,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-25 09:00:18,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149599817] [2021-03-25 09:00:18,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:18,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:18,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:18,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2021-03-25 09:00:18,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 103 transitions, 1300 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:18,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2021-03-25 09:00:18,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:18,560 INFO L129 PetriNetUnfolder]: 126/358 cut-off events. [2021-03-25 09:00:18,560 INFO L130 PetriNetUnfolder]: For 8620/8644 co-relation queries the response was YES. [2021-03-25 09:00:18,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3033 conditions, 358 events. 126/358 cut-off events. For 8620/8644 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2121 event pairs, 14 based on Foata normal form. 6/361 useless extension candidates. Maximal degree in co-relation 2923. Up to 180 conditions per place. [2021-03-25 09:00:18,563 INFO L132 encePairwiseOnDemand]: 32/49 looper letters, 104 selfloop transitions, 29 changer transitions 1/140 dead transitions. [2021-03-25 09:00:18,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 2224 flow [2021-03-25 09:00:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 128 transitions. [2021-03-25 09:00:18,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37317784256559766 [2021-03-25 09:00:18,564 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 128 transitions. [2021-03-25 09:00:18,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 128 transitions. [2021-03-25 09:00:18,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:18,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 128 transitions. [2021-03-25 09:00:18,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,565 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 49.0) internal successors, (392), 8 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,566 INFO L185 Difference]: Start difference. First operand has 129 places, 103 transitions, 1300 flow. Second operand 7 states and 128 transitions. [2021-03-25 09:00:18,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 2224 flow [2021-03-25 09:00:18,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 140 transitions, 2125 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:18,594 INFO L241 Difference]: Finished difference. Result has 134 places, 106 transitions, 1368 flow [2021-03-25 09:00:18,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1368, PETRI_PLACES=134, PETRI_TRANSITIONS=106} [2021-03-25 09:00:18,595 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 118 predicate places. [2021-03-25 09:00:18,595 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:18,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 106 transitions, 1368 flow [2021-03-25 09:00:18,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 106 transitions, 1368 flow [2021-03-25 09:00:18,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 106 transitions, 1368 flow [2021-03-25 09:00:18,631 INFO L129 PetriNetUnfolder]: 120/352 cut-off events. [2021-03-25 09:00:18,631 INFO L130 PetriNetUnfolder]: For 7833/7856 co-relation queries the response was YES. [2021-03-25 09:00:18,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 352 events. 120/352 cut-off events. For 7833/7856 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2149 event pairs, 17 based on Foata normal form. 7/353 useless extension candidates. Maximal degree in co-relation 2589. Up to 175 conditions per place. [2021-03-25 09:00:18,634 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-25 09:00:18,638 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:18,638 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:18,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 09:00:18,638 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 106 transitions, 1368 flow [2021-03-25 09:00:18,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:18,638 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:18,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:18,852 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:18,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2087476688, now seen corresponding path program 1 times [2021-03-25 09:00:18,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:18,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349787110] [2021-03-25 09:00:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:18,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:18,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:18,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:18,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349787110] [2021-03-25 09:00:18,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898253762] [2021-03-25 09:00:18,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:18,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 09:00:18,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:18,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:18,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:18,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,942 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:18,942 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:18,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:18,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:18,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:18,945 INFO L142 QuantifierPusher]: treesize reduction 28, result has 42.9 percent of original size [2021-03-25 09:00:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:18,955 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.3 percent of original size [2021-03-25 09:00:18,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:18,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:18,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:18,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:18,958 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-25 09:00:18,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:18,960 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:18,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:18,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:18,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:18,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-25 09:00:18,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551068785] [2021-03-25 09:00:18,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:18,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:18,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:18,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:18,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2021-03-25 09:00:18,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 106 transitions, 1368 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:18,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:18,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2021-03-25 09:00:18,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:19,066 INFO L129 PetriNetUnfolder]: 117/325 cut-off events. [2021-03-25 09:00:19,067 INFO L130 PetriNetUnfolder]: For 8601/8633 co-relation queries the response was YES. [2021-03-25 09:00:19,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 325 events. 117/325 cut-off events. For 8601/8633 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1830 event pairs, 16 based on Foata normal form. 7/328 useless extension candidates. Maximal degree in co-relation 2682. Up to 197 conditions per place. [2021-03-25 09:00:19,070 INFO L132 encePairwiseOnDemand]: 45/49 looper letters, 86 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2021-03-25 09:00:19,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 110 transitions, 1634 flow [2021-03-25 09:00:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2021-03-25 09:00:19,072 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42448979591836733 [2021-03-25 09:00:19,072 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 104 transitions. [2021-03-25 09:00:19,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 104 transitions. [2021-03-25 09:00:19,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:19,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 104 transitions. [2021-03-25 09:00:19,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,073 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 49.0) internal successors, (294), 6 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,073 INFO L185 Difference]: Start difference. First operand has 134 places, 106 transitions, 1368 flow. Second operand 5 states and 104 transitions. [2021-03-25 09:00:19,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 110 transitions, 1634 flow [2021-03-25 09:00:19,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 110 transitions, 1585 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:19,096 INFO L241 Difference]: Finished difference. Result has 135 places, 106 transitions, 1365 flow [2021-03-25 09:00:19,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1305, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1365, PETRI_PLACES=135, PETRI_TRANSITIONS=106} [2021-03-25 09:00:19,096 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 119 predicate places. [2021-03-25 09:00:19,097 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:19,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 106 transitions, 1365 flow [2021-03-25 09:00:19,098 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 106 transitions, 1365 flow [2021-03-25 09:00:19,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 106 transitions, 1365 flow [2021-03-25 09:00:19,122 INFO L129 PetriNetUnfolder]: 116/323 cut-off events. [2021-03-25 09:00:19,122 INFO L130 PetriNetUnfolder]: For 7934/7958 co-relation queries the response was YES. [2021-03-25 09:00:19,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2541 conditions, 323 events. 116/323 cut-off events. For 7934/7958 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1861 event pairs, 13 based on Foata normal form. 10/329 useless extension candidates. Maximal degree in co-relation 2437. Up to 165 conditions per place. [2021-03-25 09:00:19,125 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-25 09:00:19,283 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 09:00:19,283 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:19,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 186 [2021-03-25 09:00:19,284 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 106 transitions, 1370 flow [2021-03-25 09:00:19,284 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,284 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:19,284 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:19,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:19,484 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:19,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:19,485 INFO L82 PathProgramCache]: Analyzing trace with hash 625741202, now seen corresponding path program 2 times [2021-03-25 09:00:19,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:19,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668140733] [2021-03-25 09:00:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:19,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:19,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:19,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:19,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:19,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:19,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668140733] [2021-03-25 09:00:19,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:19,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:19,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848607743] [2021-03-25 09:00:19,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:19,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:19,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:19,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:19,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2021-03-25 09:00:19,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 106 transitions, 1370 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:19,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2021-03-25 09:00:19,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:19,643 INFO L129 PetriNetUnfolder]: 122/322 cut-off events. [2021-03-25 09:00:19,643 INFO L130 PetriNetUnfolder]: For 8190/8214 co-relation queries the response was YES. [2021-03-25 09:00:19,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 322 events. 122/322 cut-off events. For 8190/8214 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1753 event pairs, 13 based on Foata normal form. 2/322 useless extension candidates. Maximal degree in co-relation 2717. Up to 186 conditions per place. [2021-03-25 09:00:19,646 INFO L132 encePairwiseOnDemand]: 37/50 looper letters, 96 selfloop transitions, 18 changer transitions 1/121 dead transitions. [2021-03-25 09:00:19,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 121 transitions, 1951 flow [2021-03-25 09:00:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2021-03-25 09:00:19,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.388 [2021-03-25 09:00:19,647 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 97 transitions. [2021-03-25 09:00:19,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 97 transitions. [2021-03-25 09:00:19,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:19,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 97 transitions. [2021-03-25 09:00:19,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,648 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,648 INFO L185 Difference]: Start difference. First operand has 135 places, 106 transitions, 1370 flow. Second operand 5 states and 97 transitions. [2021-03-25 09:00:19,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 121 transitions, 1951 flow [2021-03-25 09:00:19,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 121 transitions, 1910 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:19,677 INFO L241 Difference]: Finished difference. Result has 137 places, 109 transitions, 1439 flow [2021-03-25 09:00:19,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1329, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1439, PETRI_PLACES=137, PETRI_TRANSITIONS=109} [2021-03-25 09:00:19,677 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 121 predicate places. [2021-03-25 09:00:19,677 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:19,677 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 109 transitions, 1439 flow [2021-03-25 09:00:19,677 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 109 transitions, 1439 flow [2021-03-25 09:00:19,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 137 places, 109 transitions, 1439 flow [2021-03-25 09:00:19,711 INFO L129 PetriNetUnfolder]: 116/315 cut-off events. [2021-03-25 09:00:19,711 INFO L130 PetriNetUnfolder]: For 7869/7890 co-relation queries the response was YES. [2021-03-25 09:00:19,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2505 conditions, 315 events. 116/315 cut-off events. For 7869/7890 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1763 event pairs, 13 based on Foata normal form. 20/333 useless extension candidates. Maximal degree in co-relation 2398. Up to 163 conditions per place. [2021-03-25 09:00:19,715 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-25 09:00:19,887 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:00:19,888 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:19,888 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-03-25 09:00:19,888 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 109 transitions, 1447 flow [2021-03-25 09:00:19,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:19,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:19,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:19,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-25 09:00:19,888 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1182356917, now seen corresponding path program 1 times [2021-03-25 09:00:19,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:19,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634601361] [2021-03-25 09:00:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:19,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:19,911 INFO L142 QuantifierPusher]: treesize reduction 70, result has 37.5 percent of original size [2021-03-25 09:00:19,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:00:19,931 INFO L142 QuantifierPusher]: treesize reduction 58, result has 57.0 percent of original size [2021-03-25 09:00:19,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:19,988 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size [2021-03-25 09:00:19,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:20,019 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-25 09:00:20,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:20,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:20,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634601361] [2021-03-25 09:00:20,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075833686] [2021-03-25 09:00:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:20,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:20,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:20,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:20,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:20,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:20,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:20,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,095 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:20,096 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,096 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:20,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:20,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:20,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:20,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,112 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:20,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-03-25 09:00:20,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:20,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 555 [2021-03-25 09:00:20,121 INFO L142 QuantifierPusher]: treesize reduction 5696, result has 1.9 percent of original size [2021-03-25 09:00:20,122 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-25 09:00:20,123 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-25 09:00:20,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:00:20,181 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.6 percent of original size [2021-03-25 09:00:20,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:20,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-25 09:00:20,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-25 09:00:20,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:00:20,188 INFO L142 QuantifierPusher]: treesize reduction 214, result has 49.2 percent of original size [2021-03-25 09:00:20,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,190 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:20,190 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:20,191 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,192 INFO L142 QuantifierPusher]: treesize reduction 212, result has 41.3 percent of original size [2021-03-25 09:00:20,194 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:20,194 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,195 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-25 09:00:20,197 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:20,198 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,199 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-25 09:00:20,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:20,201 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-25 09:00:20,202 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-25 09:00:20,202 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-25 09:00:20,203 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-25 09:00:20,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:20,230 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:20,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:20,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,233 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:20,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:20,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:20,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,236 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:00:20,236 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:20,238 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,239 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-25 09:00:20,239 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:20,240 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,241 INFO L142 QuantifierPusher]: treesize reduction 103, result has 24.3 percent of original size [2021-03-25 09:00:20,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:20,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:20,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:20,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:20,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:20,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:20,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,264 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:00:20,264 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:20,265 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,266 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:20,266 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:20,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:20,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:20,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:20,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27297767] [2021-03-25 09:00:20,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:20,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:20,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:20,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:20,288 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2021-03-25 09:00:20,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 109 transitions, 1447 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:20,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:20,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2021-03-25 09:00:20,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:20,929 INFO L129 PetriNetUnfolder]: 130/356 cut-off events. [2021-03-25 09:00:20,929 INFO L130 PetriNetUnfolder]: For 9373/9397 co-relation queries the response was YES. [2021-03-25 09:00:20,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3144 conditions, 356 events. 130/356 cut-off events. For 9373/9397 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2040 event pairs, 17 based on Foata normal form. 3/357 useless extension candidates. Maximal degree in co-relation 3028. Up to 238 conditions per place. [2021-03-25 09:00:20,934 INFO L132 encePairwiseOnDemand]: 41/51 looper letters, 100 selfloop transitions, 31 changer transitions 4/139 dead transitions. [2021-03-25 09:00:20,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 139 transitions, 2220 flow [2021-03-25 09:00:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:00:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:00:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 177 transitions. [2021-03-25 09:00:20,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28921568627450983 [2021-03-25 09:00:20,940 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 177 transitions. [2021-03-25 09:00:20,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 177 transitions. [2021-03-25 09:00:20,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:20,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 177 transitions. [2021-03-25 09:00:20,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.75) internal successors, (177), 12 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:20,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 51.0) internal successors, (663), 13 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:20,942 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 51.0) internal successors, (663), 13 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:20,943 INFO L185 Difference]: Start difference. First operand has 137 places, 109 transitions, 1447 flow. Second operand 12 states and 177 transitions. [2021-03-25 09:00:20,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 139 transitions, 2220 flow [2021-03-25 09:00:20,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 139 transitions, 2195 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 09:00:20,965 INFO L241 Difference]: Finished difference. Result has 156 places, 120 transitions, 1778 flow [2021-03-25 09:00:20,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1778, PETRI_PLACES=156, PETRI_TRANSITIONS=120} [2021-03-25 09:00:20,965 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 140 predicate places. [2021-03-25 09:00:20,965 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:20,965 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 120 transitions, 1778 flow [2021-03-25 09:00:20,965 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 120 transitions, 1778 flow [2021-03-25 09:00:20,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 154 places, 120 transitions, 1778 flow [2021-03-25 09:00:20,999 INFO L129 PetriNetUnfolder]: 123/339 cut-off events. [2021-03-25 09:00:20,999 INFO L130 PetriNetUnfolder]: For 10564/10586 co-relation queries the response was YES. [2021-03-25 09:00:21,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 339 events. 123/339 cut-off events. For 10564/10586 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1958 event pairs, 14 based on Foata normal form. 20/357 useless extension candidates. Maximal degree in co-relation 2878. Up to 178 conditions per place. [2021-03-25 09:00:21,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 90 [2021-03-25 09:00:21,233 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:21,233 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:21,233 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-03-25 09:00:21,234 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 120 transitions, 1795 flow [2021-03-25 09:00:21,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:21,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:21,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:21,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-03-25 09:00:21,436 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:21,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1120341447, now seen corresponding path program 1 times [2021-03-25 09:00:21,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:21,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473138215] [2021-03-25 09:00:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:21,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:00:21,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:21,466 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size [2021-03-25 09:00:21,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:21,482 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.2 percent of original size [2021-03-25 09:00:21,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:21,493 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:21,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:21,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:21,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473138215] [2021-03-25 09:00:21,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890400281] [2021-03-25 09:00:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:21,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:21,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:21,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:21,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:21,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:21,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:21,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,563 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,563 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,564 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:21,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:21,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:21,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:21,578 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-25 09:00:21,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:21,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:21,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-25 09:00:21,582 INFO L142 QuantifierPusher]: treesize reduction 214, result has 36.9 percent of original size [2021-03-25 09:00:21,583 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-25 09:00:21,584 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-25 09:00:21,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:00:21,694 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2021-03-25 09:00:21,695 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-25 09:00:21,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:21,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:21,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,697 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:21,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:21,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:00:21,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,702 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:21,702 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,703 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,704 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:21,704 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,704 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,705 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-25 09:00:21,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,706 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,706 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,707 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:00:21,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:21,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:21,709 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 49 [2021-03-25 09:00:21,709 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-25 09:00:21,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:21,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:21,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:00:21,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-03-25 09:00:21,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-25 09:00:21,721 INFO L142 QuantifierPusher]: treesize reduction 46, result has 77.3 percent of original size [2021-03-25 09:00:21,721 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,722 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:21,723 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:21,723 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,724 INFO L142 QuantifierPusher]: treesize reduction 189, result has 28.1 percent of original size [2021-03-25 09:00:21,725 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:21,725 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,726 INFO L142 QuantifierPusher]: treesize reduction 33, result has 32.7 percent of original size [2021-03-25 09:00:21,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:21,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:21,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:21,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:21,754 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-03-25 09:00:21,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:21,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:21,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:21,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:21,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:21,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,760 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2021-03-25 09:00:21,761 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,762 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,763 INFO L147 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size 32 [2021-03-25 09:00:21,764 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:21,765 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:21,766 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.8 percent of original size [2021-03-25 09:00:21,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:21,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:21,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:21,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:21,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848157292] [2021-03-25 09:00:21,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:21,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:21,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:21,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2021-03-25 09:00:21,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 120 transitions, 1795 flow. Second operand has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:21,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:21,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2021-03-25 09:00:21,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:22,323 INFO L129 PetriNetUnfolder]: 160/424 cut-off events. [2021-03-25 09:00:22,324 INFO L130 PetriNetUnfolder]: For 14640/14664 co-relation queries the response was YES. [2021-03-25 09:00:22,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 424 events. 160/424 cut-off events. For 14640/14664 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2568 event pairs, 17 based on Foata normal form. 3/424 useless extension candidates. Maximal degree in co-relation 4161. Up to 226 conditions per place. [2021-03-25 09:00:22,328 INFO L132 encePairwiseOnDemand]: 39/52 looper letters, 113 selfloop transitions, 45 changer transitions 5/167 dead transitions. [2021-03-25 09:00:22,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 167 transitions, 3016 flow [2021-03-25 09:00:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2021-03-25 09:00:22,329 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2980769230769231 [2021-03-25 09:00:22,329 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 155 transitions. [2021-03-25 09:00:22,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 155 transitions. [2021-03-25 09:00:22,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:22,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 155 transitions. [2021-03-25 09:00:22,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:22,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 52.0) internal successors, (572), 11 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:22,330 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 52.0) internal successors, (572), 11 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:22,330 INFO L185 Difference]: Start difference. First operand has 154 places, 120 transitions, 1795 flow. Second operand 10 states and 155 transitions. [2021-03-25 09:00:22,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 167 transitions, 3016 flow [2021-03-25 09:00:22,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 167 transitions, 2840 flow, removed 88 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:22,381 INFO L241 Difference]: Finished difference. Result has 167 places, 135 transitions, 2192 flow [2021-03-25 09:00:22,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2192, PETRI_PLACES=167, PETRI_TRANSITIONS=135} [2021-03-25 09:00:22,381 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 151 predicate places. [2021-03-25 09:00:22,381 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:22,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 135 transitions, 2192 flow [2021-03-25 09:00:22,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 135 transitions, 2192 flow [2021-03-25 09:00:22,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 165 places, 135 transitions, 2192 flow [2021-03-25 09:00:22,420 INFO L129 PetriNetUnfolder]: 151/402 cut-off events. [2021-03-25 09:00:22,420 INFO L130 PetriNetUnfolder]: For 14220/14252 co-relation queries the response was YES. [2021-03-25 09:00:22,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3834 conditions, 402 events. 151/402 cut-off events. For 14220/14252 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2415 event pairs, 18 based on Foata normal form. 28/428 useless extension candidates. Maximal degree in co-relation 3717. Up to 214 conditions per place. [2021-03-25 09:00:22,424 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 09:00:22,906 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:22,906 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:22,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 525 [2021-03-25 09:00:22,907 INFO L480 AbstractCegarLoop]: Abstraction has has 165 places, 135 transitions, 2231 flow [2021-03-25 09:00:22,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.090909090909092) internal successors, (122), 11 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:22,907 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:22,907 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:23,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:23,107 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:23,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1864894108, now seen corresponding path program 1 times [2021-03-25 09:00:23,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:23,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735120704] [2021-03-25 09:00:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:23,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:23,134 INFO L142 QuantifierPusher]: treesize reduction 249, result has 25.2 percent of original size [2021-03-25 09:00:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 09:00:23,186 INFO L142 QuantifierPusher]: treesize reduction 249, result has 22.7 percent of original size [2021-03-25 09:00:23,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:00:23,228 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:23,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:23,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735120704] [2021-03-25 09:00:23,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865916838] [2021-03-25 09:00:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:23,278 WARN L261 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:00:23,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:23,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:23,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:23,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:23,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:23,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,287 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:23,288 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:23,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:00:23,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:23,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 722 [2021-03-25 09:00:23,313 INFO L142 QuantifierPusher]: treesize reduction 27079, result has 0.8 percent of original size [2021-03-25 09:00:23,315 INFO L147 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size 132 [2021-03-25 09:00:23,316 INFO L142 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size [2021-03-25 09:00:23,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:00:23,395 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size [2021-03-25 09:00:23,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:23,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-03-25 09:00:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-03-25 09:00:23,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,400 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:23,400 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:23,400 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,401 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:23,401 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:23,401 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:23,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,403 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:23,404 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,404 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-25 09:00:23,405 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:23,406 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:23,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:23,412 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,412 INFO L142 QuantifierPusher]: treesize reduction 155, result has 25.1 percent of original size [2021-03-25 09:00:23,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:23,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:00:23,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:00:23,456 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.1 percent of original size [2021-03-25 09:00:23,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:23,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-03-25 09:00:23,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 769 [2021-03-25 09:00:23,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 770 [2021-03-25 09:00:23,470 INFO L142 QuantifierPusher]: treesize reduction 1284, result has 11.3 percent of original size [2021-03-25 09:00:23,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,472 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:23,472 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:23,474 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,475 INFO L142 QuantifierPusher]: treesize reduction 180, result has 34.5 percent of original size [2021-03-25 09:00:23,477 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:23,480 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,481 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,481 INFO L142 QuantifierPusher]: treesize reduction 36, result has 41.9 percent of original size [2021-03-25 09:00:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:00:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:23,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:23,506 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:23,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:23,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:23,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,509 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:23,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:23,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:23,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,511 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,512 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:23,512 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:23,513 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,514 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:23,514 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:23,514 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:23,516 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:00:23,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:23,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:23,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:23,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:23,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019878104] [2021-03-25 09:00:23,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:23,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:23,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:23,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:23,538 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 55 [2021-03-25 09:00:23,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 135 transitions, 2231 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:23,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:23,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 55 [2021-03-25 09:00:23,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:24,177 INFO L129 PetriNetUnfolder]: 160/437 cut-off events. [2021-03-25 09:00:24,177 INFO L130 PetriNetUnfolder]: For 16346/16374 co-relation queries the response was YES. [2021-03-25 09:00:24,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4497 conditions, 437 events. 160/437 cut-off events. For 16346/16374 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2689 event pairs, 18 based on Foata normal form. 2/437 useless extension candidates. Maximal degree in co-relation 4370. Up to 344 conditions per place. [2021-03-25 09:00:24,183 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 128 selfloop transitions, 18 changer transitions 4/154 dead transitions. [2021-03-25 09:00:24,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 154 transitions, 2939 flow [2021-03-25 09:00:24,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2021-03-25 09:00:24,184 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2818181818181818 [2021-03-25 09:00:24,184 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 155 transitions. [2021-03-25 09:00:24,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 155 transitions. [2021-03-25 09:00:24,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:24,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 155 transitions. [2021-03-25 09:00:24,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 55.0) internal successors, (605), 11 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,186 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 55.0) internal successors, (605), 11 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,186 INFO L185 Difference]: Start difference. First operand has 165 places, 135 transitions, 2231 flow. Second operand 10 states and 155 transitions. [2021-03-25 09:00:24,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 154 transitions, 2939 flow [2021-03-25 09:00:24,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 154 transitions, 2609 flow, removed 155 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:24,240 INFO L241 Difference]: Finished difference. Result has 174 places, 146 transitions, 2245 flow [2021-03-25 09:00:24,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2245, PETRI_PLACES=174, PETRI_TRANSITIONS=146} [2021-03-25 09:00:24,240 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 158 predicate places. [2021-03-25 09:00:24,240 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:24,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 146 transitions, 2245 flow [2021-03-25 09:00:24,240 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 146 transitions, 2245 flow [2021-03-25 09:00:24,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 146 transitions, 2245 flow [2021-03-25 09:00:24,280 INFO L129 PetriNetUnfolder]: 154/416 cut-off events. [2021-03-25 09:00:24,281 INFO L130 PetriNetUnfolder]: For 11921/11952 co-relation queries the response was YES. [2021-03-25 09:00:24,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3656 conditions, 416 events. 154/416 cut-off events. For 11921/11952 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2575 event pairs, 13 based on Foata normal form. 23/437 useless extension candidates. Maximal degree in co-relation 3538. Up to 217 conditions per place. [2021-03-25 09:00:24,286 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 09:00:24,391 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:24,392 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:24,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-25 09:00:24,392 INFO L480 AbstractCegarLoop]: Abstraction has has 172 places, 146 transitions, 2252 flow [2021-03-25 09:00:24,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,392 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:24,392 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:24,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-03-25 09:00:24,598 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:24,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1804416763, now seen corresponding path program 1 times [2021-03-25 09:00:24,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:24,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579492385] [2021-03-25 09:00:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:24,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:24,621 INFO L142 QuantifierPusher]: treesize reduction 70, result has 34.0 percent of original size [2021-03-25 09:00:24,621 INFO L147 QuantifierPusher]: treesize reduction 15, result has 58.3 percent of original size 21 [2021-03-25 09:00:24,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:24,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:24,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579492385] [2021-03-25 09:00:24,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130244465] [2021-03-25 09:00:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:24,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-25 09:00:24,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:24,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:24,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:24,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:24,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:24,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,717 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:24,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:24,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:24,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:24,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:24,719 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-25 09:00:24,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:24,734 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.3 percent of original size [2021-03-25 09:00:24,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:24,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:24,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:24,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:24,738 INFO L142 QuantifierPusher]: treesize reduction 234, result has 7.9 percent of original size [2021-03-25 09:00:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:24,743 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:24,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:24,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:24,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-25 09:00:24,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512093335] [2021-03-25 09:00:24,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:24,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:24,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:24,748 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 56 [2021-03-25 09:00:24,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 146 transitions, 2252 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:24,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 56 [2021-03-25 09:00:24,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:24,916 INFO L129 PetriNetUnfolder]: 154/414 cut-off events. [2021-03-25 09:00:24,917 INFO L130 PetriNetUnfolder]: For 12157/12201 co-relation queries the response was YES. [2021-03-25 09:00:24,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3954 conditions, 414 events. 154/414 cut-off events. For 12157/12201 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2500 event pairs, 17 based on Foata normal form. 11/424 useless extension candidates. Maximal degree in co-relation 3817. Up to 258 conditions per place. [2021-03-25 09:00:24,922 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 121 selfloop transitions, 10 changer transitions 0/148 dead transitions. [2021-03-25 09:00:24,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 148 transitions, 2586 flow [2021-03-25 09:00:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2021-03-25 09:00:24,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.37797619047619047 [2021-03-25 09:00:24,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 127 transitions. [2021-03-25 09:00:24,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 127 transitions. [2021-03-25 09:00:24,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:24,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 127 transitions. [2021-03-25 09:00:24,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:24,924 INFO L185 Difference]: Start difference. First operand has 172 places, 146 transitions, 2252 flow. Second operand 6 states and 127 transitions. [2021-03-25 09:00:24,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 148 transitions, 2586 flow [2021-03-25 09:00:24,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 148 transitions, 2396 flow, removed 95 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:24,969 INFO L241 Difference]: Finished difference. Result has 174 places, 144 transitions, 2053 flow [2021-03-25 09:00:24,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2019, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2053, PETRI_PLACES=174, PETRI_TRANSITIONS=144} [2021-03-25 09:00:24,970 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 158 predicate places. [2021-03-25 09:00:24,970 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:24,970 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 144 transitions, 2053 flow [2021-03-25 09:00:24,970 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 144 transitions, 2053 flow [2021-03-25 09:00:24,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 174 places, 144 transitions, 2053 flow [2021-03-25 09:00:25,012 INFO L129 PetriNetUnfolder]: 152/412 cut-off events. [2021-03-25 09:00:25,012 INFO L130 PetriNetUnfolder]: For 11224/11250 co-relation queries the response was YES. [2021-03-25 09:00:25,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3491 conditions, 412 events. 152/412 cut-off events. For 11224/11250 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2548 event pairs, 13 based on Foata normal form. 19/429 useless extension candidates. Maximal degree in co-relation 3335. Up to 208 conditions per place. [2021-03-25 09:00:25,016 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:25,020 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:25,020 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:25,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 09:00:25,020 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 144 transitions, 2053 flow [2021-03-25 09:00:25,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:25,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:25,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:25,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138 [2021-03-25 09:00:25,221 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:25,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1061430838, now seen corresponding path program 2 times [2021-03-25 09:00:25,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:25,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680034691] [2021-03-25 09:00:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:25,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:25,248 INFO L142 QuantifierPusher]: treesize reduction 244, result has 23.0 percent of original size [2021-03-25 09:00:25,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:00:25,303 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-03-25 09:00:25,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:25,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-03-25 09:00:25,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:25,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:25,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680034691] [2021-03-25 09:00:25,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230031425] [2021-03-25 09:00:25,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:25,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:25,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:25,394 WARN L261 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:00:25,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:25,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:25,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:25,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:25,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:25,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,407 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:25,407 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:25,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:25,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:25,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:00:25,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:25,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 722 [2021-03-25 09:00:25,435 INFO L142 QuantifierPusher]: treesize reduction 27079, result has 0.8 percent of original size [2021-03-25 09:00:25,437 INFO L147 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size 132 [2021-03-25 09:00:25,438 INFO L142 QuantifierPusher]: treesize reduction 68, result has 66.0 percent of original size [2021-03-25 09:00:25,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:00:25,522 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-03-25 09:00:25,523 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:25,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-03-25 09:00:25,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 819 [2021-03-25 09:00:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 820 [2021-03-25 09:00:25,536 INFO L142 QuantifierPusher]: treesize reduction 1268, result has 15.3 percent of original size [2021-03-25 09:00:25,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,538 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:25,538 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:25,539 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,541 INFO L142 QuantifierPusher]: treesize reduction 240, result has 41.0 percent of original size [2021-03-25 09:00:25,541 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:00:25,542 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,543 INFO L142 QuantifierPusher]: treesize reduction 145, result has 35.6 percent of original size [2021-03-25 09:00:25,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:25,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:25,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:25,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:25,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:00:25,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:25,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:25,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:00:25,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,588 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:00:25,589 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:25,590 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,591 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:00:25,592 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:25,604 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,605 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:00:25,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:25,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:25,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:25,632 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:25,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:25,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:25,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:25,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:25,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:25,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,639 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:25,639 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:25,640 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,641 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:25,641 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:25,641 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:25,642 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:00:25,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:25,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:25,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:25,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:25,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:25,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049474326] [2021-03-25 09:00:25,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:25,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:25,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:25,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:25,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2021-03-25 09:00:25,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 144 transitions, 2053 flow. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:25,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:25,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2021-03-25 09:00:25,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:26,213 INFO L129 PetriNetUnfolder]: 159/435 cut-off events. [2021-03-25 09:00:26,214 INFO L130 PetriNetUnfolder]: For 12443/12471 co-relation queries the response was YES. [2021-03-25 09:00:26,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4102 conditions, 435 events. 159/435 cut-off events. For 12443/12471 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2695 event pairs, 20 based on Foata normal form. 5/438 useless extension candidates. Maximal degree in co-relation 3959. Up to 341 conditions per place. [2021-03-25 09:00:26,218 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 127 selfloop transitions, 19 changer transitions 5/155 dead transitions. [2021-03-25 09:00:26,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 155 transitions, 2593 flow [2021-03-25 09:00:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:00:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:00:26,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 158 transitions. [2021-03-25 09:00:26,219 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.28214285714285714 [2021-03-25 09:00:26,219 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 158 transitions. [2021-03-25 09:00:26,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 158 transitions. [2021-03-25 09:00:26,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:26,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 158 transitions. [2021-03-25 09:00:26,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.8) internal successors, (158), 10 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,220 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 56.0) internal successors, (616), 11 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,220 INFO L185 Difference]: Start difference. First operand has 174 places, 144 transitions, 2053 flow. Second operand 10 states and 158 transitions. [2021-03-25 09:00:26,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 155 transitions, 2593 flow [2021-03-25 09:00:26,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 155 transitions, 2569 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:26,258 INFO L241 Difference]: Finished difference. Result has 182 places, 145 transitions, 2181 flow [2021-03-25 09:00:26,258 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2181, PETRI_PLACES=182, PETRI_TRANSITIONS=145} [2021-03-25 09:00:26,258 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 166 predicate places. [2021-03-25 09:00:26,258 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:26,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 145 transitions, 2181 flow [2021-03-25 09:00:26,259 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 145 transitions, 2181 flow [2021-03-25 09:00:26,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 180 places, 145 transitions, 2181 flow [2021-03-25 09:00:26,296 INFO L129 PetriNetUnfolder]: 153/410 cut-off events. [2021-03-25 09:00:26,296 INFO L130 PetriNetUnfolder]: For 13188/13214 co-relation queries the response was YES. [2021-03-25 09:00:26,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 410 events. 153/410 cut-off events. For 13188/13214 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2500 event pairs, 14 based on Foata normal form. 19/427 useless extension candidates. Maximal degree in co-relation 3579. Up to 216 conditions per place. [2021-03-25 09:00:26,300 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 09:00:26,510 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:26,510 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:26,510 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-25 09:00:26,511 INFO L480 AbstractCegarLoop]: Abstraction has has 180 places, 145 transitions, 2185 flow [2021-03-25 09:00:26,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:26,511 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:26,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139 [2021-03-25 09:00:26,714 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:26,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:26,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1475810224, now seen corresponding path program 1 times [2021-03-25 09:00:26,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:26,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711950009] [2021-03-25 09:00:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:26,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:26,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:26,729 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-25 09:00:26,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:26,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:26,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711950009] [2021-03-25 09:00:26,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:26,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:26,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290161892] [2021-03-25 09:00:26,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:26,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:26,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:26,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:26,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 57 [2021-03-25 09:00:26,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 145 transitions, 2185 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:26,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 57 [2021-03-25 09:00:26,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:26,849 INFO L129 PetriNetUnfolder]: 154/410 cut-off events. [2021-03-25 09:00:26,849 INFO L130 PetriNetUnfolder]: For 13560/13605 co-relation queries the response was YES. [2021-03-25 09:00:26,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 410 events. 154/410 cut-off events. For 13560/13605 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2460 event pairs, 19 based on Foata normal form. 9/415 useless extension candidates. Maximal degree in co-relation 3910. Up to 269 conditions per place. [2021-03-25 09:00:26,853 INFO L132 encePairwiseOnDemand]: 52/57 looper letters, 120 selfloop transitions, 7 changer transitions 2/146 dead transitions. [2021-03-25 09:00:26,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 146 transitions, 2467 flow [2021-03-25 09:00:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-25 09:00:26,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38596491228070173 [2021-03-25 09:00:26,854 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-25 09:00:26,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-25 09:00:26,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:26,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-25 09:00:26,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,855 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,855 INFO L185 Difference]: Start difference. First operand has 180 places, 145 transitions, 2185 flow. Second operand 5 states and 110 transitions. [2021-03-25 09:00:26,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 146 transitions, 2467 flow [2021-03-25 09:00:26,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 146 transitions, 2333 flow, removed 52 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:26,896 INFO L241 Difference]: Finished difference. Result has 179 places, 143 transitions, 2032 flow [2021-03-25 09:00:26,897 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2051, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2032, PETRI_PLACES=179, PETRI_TRANSITIONS=143} [2021-03-25 09:00:26,897 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 163 predicate places. [2021-03-25 09:00:26,897 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:26,897 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 143 transitions, 2032 flow [2021-03-25 09:00:26,897 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 143 transitions, 2032 flow [2021-03-25 09:00:26,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 143 transitions, 2032 flow [2021-03-25 09:00:26,935 INFO L129 PetriNetUnfolder]: 152/397 cut-off events. [2021-03-25 09:00:26,936 INFO L130 PetriNetUnfolder]: For 12022/12048 co-relation queries the response was YES. [2021-03-25 09:00:26,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 397 events. 152/397 cut-off events. For 12022/12048 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2354 event pairs, 13 based on Foata normal form. 19/413 useless extension candidates. Maximal degree in co-relation 3378. Up to 210 conditions per place. [2021-03-25 09:00:26,939 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:26,943 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:26,943 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:26,943 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46 [2021-03-25 09:00:26,943 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 143 transitions, 2032 flow [2021-03-25 09:00:26,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,943 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:26,943 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:26,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-25 09:00:26,944 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:26,944 INFO L82 PathProgramCache]: Analyzing trace with hash -861026781, now seen corresponding path program 1 times [2021-03-25 09:00:26,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:26,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280907662] [2021-03-25 09:00:26,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:26,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:26,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:26,966 INFO L142 QuantifierPusher]: treesize reduction 2030, result has 2.1 percent of original size [2021-03-25 09:00:26,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:26,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:26,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:26,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:26,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280907662] [2021-03-25 09:00:26,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:26,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:26,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505216940] [2021-03-25 09:00:26,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:26,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:26,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:26,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:26,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 57 [2021-03-25 09:00:26,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 143 transitions, 2032 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:26,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:26,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 57 [2021-03-25 09:00:26,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:27,128 INFO L129 PetriNetUnfolder]: 160/412 cut-off events. [2021-03-25 09:00:27,128 INFO L130 PetriNetUnfolder]: For 12745/12773 co-relation queries the response was YES. [2021-03-25 09:00:27,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4026 conditions, 412 events. 160/412 cut-off events. For 12745/12773 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2410 event pairs, 17 based on Foata normal form. 2/411 useless extension candidates. Maximal degree in co-relation 3892. Up to 312 conditions per place. [2021-03-25 09:00:27,131 INFO L132 encePairwiseOnDemand]: 49/57 looper letters, 130 selfloop transitions, 15 changer transitions 1/152 dead transitions. [2021-03-25 09:00:27,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 152 transitions, 2584 flow [2021-03-25 09:00:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2021-03-25 09:00:27,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.34502923976608185 [2021-03-25 09:00:27,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 118 transitions. [2021-03-25 09:00:27,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 118 transitions. [2021-03-25 09:00:27,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:27,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 118 transitions. [2021-03-25 09:00:27,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 57.0) internal successors, (399), 7 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,133 INFO L185 Difference]: Start difference. First operand has 175 places, 143 transitions, 2032 flow. Second operand 6 states and 118 transitions. [2021-03-25 09:00:27,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 152 transitions, 2584 flow [2021-03-25 09:00:27,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 2568 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:27,169 INFO L241 Difference]: Finished difference. Result has 179 places, 145 transitions, 2111 flow [2021-03-25 09:00:27,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2016, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2111, PETRI_PLACES=179, PETRI_TRANSITIONS=145} [2021-03-25 09:00:27,169 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 163 predicate places. [2021-03-25 09:00:27,169 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:27,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 145 transitions, 2111 flow [2021-03-25 09:00:27,170 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 145 transitions, 2111 flow [2021-03-25 09:00:27,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 145 transitions, 2111 flow [2021-03-25 09:00:27,205 INFO L129 PetriNetUnfolder]: 154/399 cut-off events. [2021-03-25 09:00:27,205 INFO L130 PetriNetUnfolder]: For 12458/12488 co-relation queries the response was YES. [2021-03-25 09:00:27,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3642 conditions, 399 events. 154/399 cut-off events. For 12458/12488 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2378 event pairs, 15 based on Foata normal form. 18/412 useless extension candidates. Maximal degree in co-relation 3477. Up to 214 conditions per place. [2021-03-25 09:00:27,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:27,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:27,212 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:27,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 09:00:27,212 INFO L480 AbstractCegarLoop]: Abstraction has has 179 places, 145 transitions, 2111 flow [2021-03-25 09:00:27,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:27,213 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:27,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-25 09:00:27,213 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:27,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1785809786, now seen corresponding path program 1 times [2021-03-25 09:00:27,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:27,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294017105] [2021-03-25 09:00:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:27,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,230 INFO L142 QuantifierPusher]: treesize reduction 68, result has 23.6 percent of original size [2021-03-25 09:00:27,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:27,238 INFO L142 QuantifierPusher]: treesize reduction 65, result has 24.4 percent of original size [2021-03-25 09:00:27,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:27,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:27,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:27,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294017105] [2021-03-25 09:00:27,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635672907] [2021-03-25 09:00:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:27,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:00:27,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:27,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:27,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:27,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:27,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,321 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:27,321 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,322 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:27,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:27,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:27,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:27,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:27,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-25 09:00:27,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:00:27,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 866 [2021-03-25 09:00:27,355 INFO L142 QuantifierPusher]: treesize reduction 13462, result has 1.6 percent of original size [2021-03-25 09:00:27,358 INFO L147 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size 160 [2021-03-25 09:00:27,359 INFO L142 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size [2021-03-25 09:00:27,360 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:00:27,534 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-03-25 09:00:27,536 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-25 09:00:27,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:27,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-25 09:00:27,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:27,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-25 09:00:27,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,543 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:27,543 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:27,544 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,544 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:27,545 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:27,546 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:27,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,548 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:27,549 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,549 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,549 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-25 09:00:27,552 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:27,553 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:00:27,553 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:00:27,554 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,554 INFO L142 QuantifierPusher]: treesize reduction 86, result has 49.1 percent of original size [2021-03-25 09:00:27,555 INFO L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-03-25 09:00:27,556 INFO L147 QuantifierPusher]: treesize reduction 15, result has 81.5 percent of original size 66 [2021-03-25 09:00:27,556 INFO L142 QuantifierPusher]: treesize reduction 15, result has 81.5 percent of original size [2021-03-25 09:00:27,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:00:27,590 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.7 percent of original size [2021-03-25 09:00:27,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:27,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 09:00:27,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-25 09:00:27,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-25 09:00:27,597 INFO L142 QuantifierPusher]: treesize reduction 330, result has 15.8 percent of original size [2021-03-25 09:00:27,597 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:27,598 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:27,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:27,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:27,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:27,615 INFO L142 QuantifierPusher]: treesize reduction 27, result has 3.6 percent of original size [2021-03-25 09:00:27,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:27,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:27,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:27,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:27,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-03-25 09:00:27,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063983448] [2021-03-25 09:00:27,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:00:27,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:27,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:00:27,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:00:27,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2021-03-25 09:00:27,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 145 transitions, 2111 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:27,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2021-03-25 09:00:27,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:27,980 INFO L129 PetriNetUnfolder]: 164/424 cut-off events. [2021-03-25 09:00:27,980 INFO L130 PetriNetUnfolder]: For 13193/13221 co-relation queries the response was YES. [2021-03-25 09:00:27,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4171 conditions, 424 events. 164/424 cut-off events. For 13193/13221 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2496 event pairs, 17 based on Foata normal form. 5/426 useless extension candidates. Maximal degree in co-relation 4035. Up to 315 conditions per place. [2021-03-25 09:00:27,983 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 134 selfloop transitions, 27 changer transitions 0/165 dead transitions. [2021-03-25 09:00:27,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 165 transitions, 2762 flow [2021-03-25 09:00:27,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:00:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:00:27,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 142 transitions. [2021-03-25 09:00:27,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27680311890838205 [2021-03-25 09:00:27,984 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 142 transitions. [2021-03-25 09:00:27,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 142 transitions. [2021-03-25 09:00:27,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:27,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 142 transitions. [2021-03-25 09:00:27,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.777777777777779) internal successors, (142), 9 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,985 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:27,985 INFO L185 Difference]: Start difference. First operand has 179 places, 145 transitions, 2111 flow. Second operand 9 states and 142 transitions. [2021-03-25 09:00:27,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 165 transitions, 2762 flow [2021-03-25 09:00:28,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 165 transitions, 2729 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:28,028 INFO L241 Difference]: Finished difference. Result has 187 places, 150 transitions, 2225 flow [2021-03-25 09:00:28,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=2078, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2225, PETRI_PLACES=187, PETRI_TRANSITIONS=150} [2021-03-25 09:00:28,029 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 171 predicate places. [2021-03-25 09:00:28,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:28,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 150 transitions, 2225 flow [2021-03-25 09:00:28,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 150 transitions, 2225 flow [2021-03-25 09:00:28,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 150 transitions, 2225 flow [2021-03-25 09:00:28,066 INFO L129 PetriNetUnfolder]: 157/411 cut-off events. [2021-03-25 09:00:28,066 INFO L130 PetriNetUnfolder]: For 12870/12891 co-relation queries the response was YES. [2021-03-25 09:00:28,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3776 conditions, 411 events. 157/411 cut-off events. For 12870/12891 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2490 event pairs, 16 based on Foata normal form. 13/421 useless extension candidates. Maximal degree in co-relation 3645. Up to 221 conditions per place. [2021-03-25 09:00:28,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 09:00:28,399 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:00:28,399 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:00:28,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 370 [2021-03-25 09:00:28,400 INFO L480 AbstractCegarLoop]: Abstraction has has 186 places, 149 transitions, 2242 flow [2021-03-25 09:00:28,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,400 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:28,400 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:28,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:28,616 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:28,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:28,616 INFO L82 PathProgramCache]: Analyzing trace with hash -184844465, now seen corresponding path program 1 times [2021-03-25 09:00:28,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:28,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100422003] [2021-03-25 09:00:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:28,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:28,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:28,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:28,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:28,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:28,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100422003] [2021-03-25 09:00:28,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:28,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:28,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071338704] [2021-03-25 09:00:28,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:28,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:28,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:28,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:28,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 59 [2021-03-25 09:00:28,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 149 transitions, 2242 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:28,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 59 [2021-03-25 09:00:28,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:28,807 INFO L129 PetriNetUnfolder]: 161/424 cut-off events. [2021-03-25 09:00:28,807 INFO L130 PetriNetUnfolder]: For 14104/14141 co-relation queries the response was YES. [2021-03-25 09:00:28,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4214 conditions, 424 events. 161/424 cut-off events. For 14104/14141 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2528 event pairs, 19 based on Foata normal form. 3/423 useless extension candidates. Maximal degree in co-relation 4076. Up to 228 conditions per place. [2021-03-25 09:00:28,812 INFO L132 encePairwiseOnDemand]: 43/59 looper letters, 110 selfloop transitions, 30 changer transitions 1/158 dead transitions. [2021-03-25 09:00:28,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 158 transitions, 2786 flow [2021-03-25 09:00:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2021-03-25 09:00:28,813 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3728813559322034 [2021-03-25 09:00:28,813 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 132 transitions. [2021-03-25 09:00:28,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 132 transitions. [2021-03-25 09:00:28,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:28,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 132 transitions. [2021-03-25 09:00:28,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,814 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,814 INFO L185 Difference]: Start difference. First operand has 186 places, 149 transitions, 2242 flow. Second operand 6 states and 132 transitions. [2021-03-25 09:00:28,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 158 transitions, 2786 flow [2021-03-25 09:00:28,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 158 transitions, 2676 flow, removed 28 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:28,867 INFO L241 Difference]: Finished difference. Result has 186 places, 147 transitions, 2160 flow [2021-03-25 09:00:28,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2160, PETRI_PLACES=186, PETRI_TRANSITIONS=147} [2021-03-25 09:00:28,867 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 170 predicate places. [2021-03-25 09:00:28,867 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:28,867 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 186 places, 147 transitions, 2160 flow [2021-03-25 09:00:28,867 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 186 places, 147 transitions, 2160 flow [2021-03-25 09:00:28,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 185 places, 147 transitions, 2160 flow [2021-03-25 09:00:28,905 INFO L129 PetriNetUnfolder]: 161/422 cut-off events. [2021-03-25 09:00:28,905 INFO L130 PetriNetUnfolder]: For 13637/13667 co-relation queries the response was YES. [2021-03-25 09:00:28,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3901 conditions, 422 events. 161/422 cut-off events. For 13637/13667 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2579 event pairs, 18 based on Foata normal form. 13/430 useless extension candidates. Maximal degree in co-relation 3769. Up to 227 conditions per place. [2021-03-25 09:00:28,909 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-25 09:00:28,912 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:28,912 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:28,912 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 09:00:28,912 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 147 transitions, 2160 flow [2021-03-25 09:00:28,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:28,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:28,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:28,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-25 09:00:28,913 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:28,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:28,913 INFO L82 PathProgramCache]: Analyzing trace with hash -150871469, now seen corresponding path program 1 times [2021-03-25 09:00:28,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:28,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143427767] [2021-03-25 09:00:28,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:28,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:28,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:28,943 INFO L142 QuantifierPusher]: treesize reduction 403, result has 14.1 percent of original size [2021-03-25 09:00:28,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:00:28,962 INFO L142 QuantifierPusher]: treesize reduction 7, result has 66.7 percent of original size [2021-03-25 09:00:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:28,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:28,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:28,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143427767] [2021-03-25 09:00:28,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996099644] [2021-03-25 09:00:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:29,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-25 09:00:29,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:29,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:29,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:29,035 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-25 09:00:29,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:29,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:29,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:29,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-03-25 09:00:29,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:00:29,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 501 [2021-03-25 09:00:29,088 INFO L142 QuantifierPusher]: treesize reduction 6063, result has 10.8 percent of original size [2021-03-25 09:00:29,091 INFO L147 QuantifierPusher]: treesize reduction 31, result has 95.7 percent of original size 688 [2021-03-25 09:00:29,093 INFO L142 QuantifierPusher]: treesize reduction 31, result has 95.7 percent of original size [2021-03-25 09:00:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 688 [2021-03-25 09:00:29,452 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-03-25 09:00:29,454 INFO L142 QuantifierPusher]: treesize reduction 179, result has 66.2 percent of original size [2021-03-25 09:00:29,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:29,456 INFO L147 QuantifierPusher]: treesize reduction 39, result has 88.5 percent of original size 300 [2021-03-25 09:00:29,456 INFO L142 QuantifierPusher]: treesize reduction 39, result has 88.5 percent of original size [2021-03-25 09:00:29,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 638 [2021-03-25 09:00:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 639 [2021-03-25 09:00:29,474 INFO L142 QuantifierPusher]: treesize reduction 32304, result has 0.4 percent of original size [2021-03-25 09:00:29,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,478 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:29,479 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:29,480 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,481 INFO L142 QuantifierPusher]: treesize reduction 120, result has 48.1 percent of original size [2021-03-25 09:00:29,481 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:29,482 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,482 INFO L142 QuantifierPusher]: treesize reduction 64, result has 39.6 percent of original size [2021-03-25 09:00:29,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:29,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:29,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:29,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:29,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:29,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:29,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:29,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:29,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:29,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,507 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:00:29,507 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:29,507 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,508 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:29,508 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:29,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:29,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:29,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:29,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-25 09:00:29,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093273354] [2021-03-25 09:00:29,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:00:29,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:29,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:00:29,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:00:29,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 59 [2021-03-25 09:00:29,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 147 transitions, 2160 flow. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:29,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:29,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 59 [2021-03-25 09:00:29,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:29,886 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-03-25 09:00:30,158 INFO L129 PetriNetUnfolder]: 166/435 cut-off events. [2021-03-25 09:00:30,158 INFO L130 PetriNetUnfolder]: For 14776/14797 co-relation queries the response was YES. [2021-03-25 09:00:30,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4380 conditions, 435 events. 166/435 cut-off events. For 14776/14797 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2597 event pairs, 20 based on Foata normal form. 2/434 useless extension candidates. Maximal degree in co-relation 4238. Up to 327 conditions per place. [2021-03-25 09:00:30,162 INFO L132 encePairwiseOnDemand]: 47/59 looper letters, 126 selfloop transitions, 26 changer transitions 3/160 dead transitions. [2021-03-25 09:00:30,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 160 transitions, 2719 flow [2021-03-25 09:00:30,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:00:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:00:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2021-03-25 09:00:30,163 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2749529190207156 [2021-03-25 09:00:30,163 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 146 transitions. [2021-03-25 09:00:30,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 146 transitions. [2021-03-25 09:00:30,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:30,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 146 transitions. [2021-03-25 09:00:30,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,164 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 59.0) internal successors, (590), 10 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,164 INFO L185 Difference]: Start difference. First operand has 185 places, 147 transitions, 2160 flow. Second operand 9 states and 146 transitions. [2021-03-25 09:00:30,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 160 transitions, 2719 flow [2021-03-25 09:00:30,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 160 transitions, 2682 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:30,208 INFO L241 Difference]: Finished difference. Result has 192 places, 147 transitions, 2189 flow [2021-03-25 09:00:30,209 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2189, PETRI_PLACES=192, PETRI_TRANSITIONS=147} [2021-03-25 09:00:30,209 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 176 predicate places. [2021-03-25 09:00:30,209 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:30,209 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 147 transitions, 2189 flow [2021-03-25 09:00:30,209 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 147 transitions, 2189 flow [2021-03-25 09:00:30,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 147 transitions, 2189 flow [2021-03-25 09:00:30,246 INFO L129 PetriNetUnfolder]: 159/417 cut-off events. [2021-03-25 09:00:30,246 INFO L130 PetriNetUnfolder]: For 13805/13823 co-relation queries the response was YES. [2021-03-25 09:00:30,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3937 conditions, 417 events. 159/417 cut-off events. For 13805/13823 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2524 event pairs, 18 based on Foata normal form. 11/425 useless extension candidates. Maximal degree in co-relation 3800. Up to 224 conditions per place. [2021-03-25 09:00:30,250 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:30,384 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:30,384 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:30,384 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 175 [2021-03-25 09:00:30,385 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 147 transitions, 2207 flow [2021-03-25 09:00:30,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:30,385 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:30,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156 [2021-03-25 09:00:30,585 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:30,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:30,586 INFO L82 PathProgramCache]: Analyzing trace with hash -203314885, now seen corresponding path program 1 times [2021-03-25 09:00:30,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:30,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976806353] [2021-03-25 09:00:30,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:30,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,600 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:00:30,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:30,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:30,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:30,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976806353] [2021-03-25 09:00:30,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657085368] [2021-03-25 09:00:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:30,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 09:00:30,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:30,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:30,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:30,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:30,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,671 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:30,672 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:30,672 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:30,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:30,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:30,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:30,684 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:00:30,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:30,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:30,687 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-25 09:00:30,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:30,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:30,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:30,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:30,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:30,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:00:30,756 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-25 09:00:30,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:30,760 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:30,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:30,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 09:00:30,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138324830] [2021-03-25 09:00:30,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:00:30,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:30,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:00:30,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:00:30,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2021-03-25 09:00:30,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 147 transitions, 2207 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:30,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2021-03-25 09:00:30,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:30,979 INFO L129 PetriNetUnfolder]: 164/426 cut-off events. [2021-03-25 09:00:30,979 INFO L130 PetriNetUnfolder]: For 15352/15401 co-relation queries the response was YES. [2021-03-25 09:00:30,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4357 conditions, 426 events. 164/426 cut-off events. For 15352/15401 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2555 event pairs, 18 based on Foata normal form. 12/434 useless extension candidates. Maximal degree in co-relation 4213. Up to 232 conditions per place. [2021-03-25 09:00:30,983 INFO L132 encePairwiseOnDemand]: 48/60 looper letters, 102 selfloop transitions, 45 changer transitions 1/165 dead transitions. [2021-03-25 09:00:30,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 165 transitions, 2849 flow [2021-03-25 09:00:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2021-03-25 09:00:30,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3523809523809524 [2021-03-25 09:00:30,985 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 148 transitions. [2021-03-25 09:00:30,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 148 transitions. [2021-03-25 09:00:30,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:30,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 148 transitions. [2021-03-25 09:00:30,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,987 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:30,987 INFO L185 Difference]: Start difference. First operand has 189 places, 147 transitions, 2207 flow. Second operand 7 states and 148 transitions. [2021-03-25 09:00:30,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 165 transitions, 2849 flow [2021-03-25 09:00:31,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 165 transitions, 2800 flow, removed 12 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:31,046 INFO L241 Difference]: Finished difference. Result has 191 places, 148 transitions, 2275 flow [2021-03-25 09:00:31,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2275, PETRI_PLACES=191, PETRI_TRANSITIONS=148} [2021-03-25 09:00:31,047 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 175 predicate places. [2021-03-25 09:00:31,047 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:31,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 148 transitions, 2275 flow [2021-03-25 09:00:31,047 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 148 transitions, 2275 flow [2021-03-25 09:00:31,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 148 transitions, 2275 flow [2021-03-25 09:00:31,086 INFO L129 PetriNetUnfolder]: 163/421 cut-off events. [2021-03-25 09:00:31,086 INFO L130 PetriNetUnfolder]: For 14154/14166 co-relation queries the response was YES. [2021-03-25 09:00:31,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4004 conditions, 421 events. 163/421 cut-off events. For 14154/14166 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2542 event pairs, 13 based on Foata normal form. 7/425 useless extension candidates. Maximal degree in co-relation 3869. Up to 228 conditions per place. [2021-03-25 09:00:31,090 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-25 09:00:31,094 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:31,094 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:31,094 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 09:00:31,094 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 148 transitions, 2275 flow [2021-03-25 09:00:31,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:31,095 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:31,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:31,297 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:31,298 INFO L82 PathProgramCache]: Analyzing trace with hash -19016019, now seen corresponding path program 1 times [2021-03-25 09:00:31,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:31,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029506077] [2021-03-25 09:00:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:31,318 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-25 09:00:31,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:31,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:31,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:31,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029506077] [2021-03-25 09:00:31,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:31,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:31,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121907034] [2021-03-25 09:00:31,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:31,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:31,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:31,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:31,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 60 [2021-03-25 09:00:31,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 148 transitions, 2275 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:31,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 60 [2021-03-25 09:00:31,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:31,448 INFO L129 PetriNetUnfolder]: 161/428 cut-off events. [2021-03-25 09:00:31,448 INFO L130 PetriNetUnfolder]: For 14621/14658 co-relation queries the response was YES. [2021-03-25 09:00:31,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4300 conditions, 428 events. 161/428 cut-off events. For 14621/14658 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2585 event pairs, 18 based on Foata normal form. 3/427 useless extension candidates. Maximal degree in co-relation 4158. Up to 259 conditions per place. [2021-03-25 09:00:31,452 INFO L132 encePairwiseOnDemand]: 54/60 looper letters, 113 selfloop transitions, 20 changer transitions 2/152 dead transitions. [2021-03-25 09:00:31,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 152 transitions, 2628 flow [2021-03-25 09:00:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-25 09:00:31,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2021-03-25 09:00:31,454 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-25 09:00:31,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-25 09:00:31,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:31,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-25 09:00:31,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,455 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,455 INFO L185 Difference]: Start difference. First operand has 191 places, 148 transitions, 2275 flow. Second operand 5 states and 110 transitions. [2021-03-25 09:00:31,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 152 transitions, 2628 flow [2021-03-25 09:00:31,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 152 transitions, 2538 flow, removed 10 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:31,527 INFO L241 Difference]: Finished difference. Result has 192 places, 146 transitions, 2183 flow [2021-03-25 09:00:31,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2185, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2183, PETRI_PLACES=192, PETRI_TRANSITIONS=146} [2021-03-25 09:00:31,528 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 176 predicate places. [2021-03-25 09:00:31,528 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:31,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 146 transitions, 2183 flow [2021-03-25 09:00:31,528 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 146 transitions, 2183 flow [2021-03-25 09:00:31,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 190 places, 146 transitions, 2183 flow [2021-03-25 09:00:31,582 INFO L129 PetriNetUnfolder]: 161/420 cut-off events. [2021-03-25 09:00:31,582 INFO L130 PetriNetUnfolder]: For 13940/13967 co-relation queries the response was YES. [2021-03-25 09:00:31,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3955 conditions, 420 events. 161/420 cut-off events. For 13940/13967 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2546 event pairs, 17 based on Foata normal form. 11/426 useless extension candidates. Maximal degree in co-relation 3780. Up to 230 conditions per place. [2021-03-25 09:00:31,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:31,594 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:31,594 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:31,594 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 09:00:31,595 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 146 transitions, 2183 flow [2021-03-25 09:00:31,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:31,595 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:31,595 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:31,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-25 09:00:31,595 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:31,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:31,595 INFO L82 PathProgramCache]: Analyzing trace with hash -115155837, now seen corresponding path program 2 times [2021-03-25 09:00:31,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:31,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067831893] [2021-03-25 09:00:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:31,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:31,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:31,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:31,690 INFO L142 QuantifierPusher]: treesize reduction 1324, result has 12.0 percent of original size [2021-03-25 09:00:31,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-03-25 09:00:31,746 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:31,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:31,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:31,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067831893] [2021-03-25 09:00:31,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301228558] [2021-03-25 09:00:31,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:31,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:31,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:31,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-25 09:00:31,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:31,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:31,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:31,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:31,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:31,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:31,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,804 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:31,804 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:31,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:31,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:31,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-25 09:00:31,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:31,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 549 [2021-03-25 09:00:31,809 INFO L142 QuantifierPusher]: treesize reduction 643, result has 13.7 percent of original size [2021-03-25 09:00:31,810 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-25 09:00:31,811 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-25 09:00:31,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:31,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:31,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:00:31,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:31,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:00:31,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,851 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:31,851 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:31,852 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,852 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:31,852 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:31,853 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:00:31,854 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:31,854 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,855 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-25 09:00:31,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:00:31,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:31,916 INFO L142 QuantifierPusher]: treesize reduction 7, result has 93.7 percent of original size [2021-03-25 09:00:31,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:00:31,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 09:00:31,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,919 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:31,919 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,920 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:00:31,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:00:31,965 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.4 percent of original size [2021-03-25 09:00:31,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:31,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:00:31,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-03-25 09:00:31,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-03-25 09:00:31,969 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.2 percent of original size [2021-03-25 09:00:31,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,970 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:31,971 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:31,974 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,976 INFO L142 QuantifierPusher]: treesize reduction 100, result has 58.7 percent of original size [2021-03-25 09:00:31,976 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:31,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:31,977 INFO L142 QuantifierPusher]: treesize reduction 120, result has 35.8 percent of original size [2021-03-25 09:00:31,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:31,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:31,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:31,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:31,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:32,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:32,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:32,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:32,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:32,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:32,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:32,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,017 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-25 09:00:32,017 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:32,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,018 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-25 09:00:32,019 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-25 09:00:32,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:32,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:32,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:32,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:00:32,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309118205] [2021-03-25 09:00:32,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:00:32,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:32,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:00:32,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:00:32,044 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2021-03-25 09:00:32,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 146 transitions, 2183 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:32,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:32,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2021-03-25 09:00:32,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:32,406 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-03-25 09:00:32,732 INFO L129 PetriNetUnfolder]: 167/438 cut-off events. [2021-03-25 09:00:32,732 INFO L130 PetriNetUnfolder]: For 14834/14862 co-relation queries the response was YES. [2021-03-25 09:00:32,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 438 events. 167/438 cut-off events. For 14834/14862 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2635 event pairs, 21 based on Foata normal form. 8/443 useless extension candidates. Maximal degree in co-relation 4289. Up to 359 conditions per place. [2021-03-25 09:00:32,736 INFO L132 encePairwiseOnDemand]: 51/60 looper letters, 133 selfloop transitions, 15 changer transitions 1/153 dead transitions. [2021-03-25 09:00:32,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 153 transitions, 2565 flow [2021-03-25 09:00:32,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:00:32,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:00:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 136 transitions. [2021-03-25 09:00:32,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2518518518518518 [2021-03-25 09:00:32,737 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 136 transitions. [2021-03-25 09:00:32,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 136 transitions. [2021-03-25 09:00:32,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:32,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 136 transitions. [2021-03-25 09:00:32,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 9 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:32,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:32,737 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 60.0) internal successors, (600), 10 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:32,737 INFO L185 Difference]: Start difference. First operand has 190 places, 146 transitions, 2183 flow. Second operand 9 states and 136 transitions. [2021-03-25 09:00:32,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 153 transitions, 2565 flow [2021-03-25 09:00:32,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 153 transitions, 2523 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:32,784 INFO L241 Difference]: Finished difference. Result has 198 places, 152 transitions, 2265 flow [2021-03-25 09:00:32,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2141, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2265, PETRI_PLACES=198, PETRI_TRANSITIONS=152} [2021-03-25 09:00:32,784 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 182 predicate places. [2021-03-25 09:00:32,785 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:32,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 152 transitions, 2265 flow [2021-03-25 09:00:32,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 152 transitions, 2265 flow [2021-03-25 09:00:32,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 152 transitions, 2265 flow [2021-03-25 09:00:32,824 INFO L129 PetriNetUnfolder]: 160/421 cut-off events. [2021-03-25 09:00:32,824 INFO L130 PetriNetUnfolder]: For 14016/14040 co-relation queries the response was YES. [2021-03-25 09:00:32,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 421 events. 160/421 cut-off events. For 14016/14040 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2554 event pairs, 17 based on Foata normal form. 13/431 useless extension candidates. Maximal degree in co-relation 3837. Up to 229 conditions per place. [2021-03-25 09:00:32,828 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-25 09:00:33,449 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:33,449 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:00:33,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 664 [2021-03-25 09:00:33,450 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 150 transitions, 2258 flow [2021-03-25 09:00:33,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:33,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:33,450 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:33,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:33,650 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:33,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:33,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1244203971, now seen corresponding path program 3 times [2021-03-25 09:00:33,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:33,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128477928] [2021-03-25 09:00:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:33,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:33,687 INFO L142 QuantifierPusher]: treesize reduction 58, result has 66.3 percent of original size [2021-03-25 09:00:33,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-25 09:00:33,722 INFO L142 QuantifierPusher]: treesize reduction 68, result has 58.8 percent of original size [2021-03-25 09:00:33,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:00:33,782 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:00:33,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:33,798 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:33,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:33,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:33,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:33,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128477928] [2021-03-25 09:00:33,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278284786] [2021-03-25 09:00:33,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:33,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:00:33,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:33,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:00:33,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:33,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:33,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:33,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:33,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,865 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:33,866 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:33,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:33,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-25 09:00:33,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 549 [2021-03-25 09:00:33,872 INFO L142 QuantifierPusher]: treesize reduction 643, result has 13.7 percent of original size [2021-03-25 09:00:33,873 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-25 09:00:33,874 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-25 09:00:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:33,921 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.1 percent of original size [2021-03-25 09:00:33,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:33,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 09:00:33,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,925 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:33,926 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,927 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:33,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:33,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:00:33,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:00:33,972 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.6 percent of original size [2021-03-25 09:00:33,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:33,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-25 09:00:33,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-25 09:00:33,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:00:33,978 INFO L142 QuantifierPusher]: treesize reduction 46, result has 81.8 percent of original size [2021-03-25 09:00:33,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,980 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:33,980 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:33,981 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,982 INFO L142 QuantifierPusher]: treesize reduction 214, result has 42.3 percent of original size [2021-03-25 09:00:33,983 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:33,983 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:33,984 INFO L142 QuantifierPusher]: treesize reduction 140, result has 34.6 percent of original size [2021-03-25 09:00:33,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:33,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:33,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:33,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:33,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:34,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:34,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:34,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:00:34,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,022 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:00:34,022 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:34,022 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,023 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-25 09:00:34,023 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-25 09:00:34,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:34,049 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:00:34,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:34,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:34,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:34,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:34,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,054 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,054 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:00:34,054 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:34,055 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,056 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:00:34,057 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:34,057 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:34,058 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:00:34,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:34,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:34,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:34,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:00:34,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271401695] [2021-03-25 09:00:34,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:00:34,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:00:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:00:34,080 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-25 09:00:34,081 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 150 transitions, 2258 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:34,081 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:34,081 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-25 09:00:34,081 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:34,473 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2021-03-25 09:00:34,998 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-03-25 09:00:35,218 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2021-03-25 09:00:35,255 INFO L129 PetriNetUnfolder]: 174/458 cut-off events. [2021-03-25 09:00:35,255 INFO L130 PetriNetUnfolder]: For 15587/15597 co-relation queries the response was YES. [2021-03-25 09:00:35,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4708 conditions, 458 events. 174/458 cut-off events. For 15587/15597 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2801 event pairs, 22 based on Foata normal form. 3/458 useless extension candidates. Maximal degree in co-relation 4556. Up to 361 conditions per place. [2021-03-25 09:00:35,260 INFO L132 encePairwiseOnDemand]: 49/64 looper letters, 135 selfloop transitions, 26 changer transitions 3/168 dead transitions. [2021-03-25 09:00:35,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 168 transitions, 3006 flow [2021-03-25 09:00:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:00:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:00:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 182 transitions. [2021-03-25 09:00:35,268 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23697916666666666 [2021-03-25 09:00:35,268 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 182 transitions. [2021-03-25 09:00:35,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 182 transitions. [2021-03-25 09:00:35,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:35,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 182 transitions. [2021-03-25 09:00:35,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 64.0) internal successors, (832), 13 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,270 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 64.0) internal successors, (832), 13 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,270 INFO L185 Difference]: Start difference. First operand has 195 places, 150 transitions, 2258 flow. Second operand 12 states and 182 transitions. [2021-03-25 09:00:35,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 168 transitions, 3006 flow [2021-03-25 09:00:35,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 168 transitions, 2928 flow, removed 39 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:35,343 INFO L241 Difference]: Finished difference. Result has 210 places, 160 transitions, 2513 flow [2021-03-25 09:00:35,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2196, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2513, PETRI_PLACES=210, PETRI_TRANSITIONS=160} [2021-03-25 09:00:35,343 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 194 predicate places. [2021-03-25 09:00:35,344 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:35,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 160 transitions, 2513 flow [2021-03-25 09:00:35,344 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 160 transitions, 2513 flow [2021-03-25 09:00:35,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 160 transitions, 2513 flow [2021-03-25 09:00:35,403 INFO L129 PetriNetUnfolder]: 167/451 cut-off events. [2021-03-25 09:00:35,404 INFO L130 PetriNetUnfolder]: For 16862/16874 co-relation queries the response was YES. [2021-03-25 09:00:35,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4354 conditions, 451 events. 167/451 cut-off events. For 16862/16874 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2823 event pairs, 18 based on Foata normal form. 7/455 useless extension candidates. Maximal degree in co-relation 4202. Up to 241 conditions per place. [2021-03-25 09:00:35,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-25 09:00:35,416 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:35,416 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:35,416 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-25 09:00:35,417 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 160 transitions, 2513 flow [2021-03-25 09:00:35,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,417 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:35,417 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:35,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:35,632 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:35,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:35,632 INFO L82 PathProgramCache]: Analyzing trace with hash 460339912, now seen corresponding path program 1 times [2021-03-25 09:00:35,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:35,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619260698] [2021-03-25 09:00:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:35,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:35,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:35,653 INFO L142 QuantifierPusher]: treesize reduction 214, result has 10.5 percent of original size [2021-03-25 09:00:35,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:35,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:35,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619260698] [2021-03-25 09:00:35,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:35,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:00:35,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123990963] [2021-03-25 09:00:35,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:00:35,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:35,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:00:35,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:00:35,661 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 64 [2021-03-25 09:00:35,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 160 transitions, 2513 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:35,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 64 [2021-03-25 09:00:35,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:35,804 INFO L129 PetriNetUnfolder]: 169/446 cut-off events. [2021-03-25 09:00:35,804 INFO L130 PetriNetUnfolder]: For 17015/17062 co-relation queries the response was YES. [2021-03-25 09:00:35,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4675 conditions, 446 events. 169/446 cut-off events. For 17015/17062 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2713 event pairs, 21 based on Foata normal form. 9/453 useless extension candidates. Maximal degree in co-relation 4514. Up to 294 conditions per place. [2021-03-25 09:00:35,812 INFO L132 encePairwiseOnDemand]: 57/64 looper letters, 132 selfloop transitions, 7 changer transitions 1/159 dead transitions. [2021-03-25 09:00:35,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 159 transitions, 2783 flow [2021-03-25 09:00:35,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:00:35,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:00:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2021-03-25 09:00:35,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3671875 [2021-03-25 09:00:35,814 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 94 transitions. [2021-03-25 09:00:35,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 94 transitions. [2021-03-25 09:00:35,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:35,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 94 transitions. [2021-03-25 09:00:35,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,815 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,815 INFO L185 Difference]: Start difference. First operand has 209 places, 160 transitions, 2513 flow. Second operand 4 states and 94 transitions. [2021-03-25 09:00:35,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 159 transitions, 2783 flow [2021-03-25 09:00:35,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 159 transitions, 2620 flow, removed 77 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:35,893 INFO L241 Difference]: Finished difference. Result has 209 places, 158 transitions, 2339 flow [2021-03-25 09:00:35,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2339, PETRI_PLACES=209, PETRI_TRANSITIONS=158} [2021-03-25 09:00:35,893 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 193 predicate places. [2021-03-25 09:00:35,893 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:35,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 158 transitions, 2339 flow [2021-03-25 09:00:35,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 158 transitions, 2339 flow [2021-03-25 09:00:35,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 207 places, 158 transitions, 2339 flow [2021-03-25 09:00:35,937 INFO L129 PetriNetUnfolder]: 166/450 cut-off events. [2021-03-25 09:00:35,937 INFO L130 PetriNetUnfolder]: For 16489/16501 co-relation queries the response was YES. [2021-03-25 09:00:35,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4237 conditions, 450 events. 166/450 cut-off events. For 16489/16501 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2825 event pairs, 20 based on Foata normal form. 7/453 useless extension candidates. Maximal degree in co-relation 4086. Up to 233 conditions per place. [2021-03-25 09:00:35,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-25 09:00:35,945 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:35,945 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:35,946 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-25 09:00:35,946 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 158 transitions, 2339 flow [2021-03-25 09:00:35,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:35,946 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:35,946 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:35,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-25 09:00:35,946 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:35,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2059726183, now seen corresponding path program 2 times [2021-03-25 09:00:35,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:35,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195873033] [2021-03-25 09:00:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:35,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:35,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:35,978 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-25 09:00:35,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:35,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:35,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:36,016 INFO L142 QuantifierPusher]: treesize reduction 875, result has 25.0 percent of original size [2021-03-25 09:00:36,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-03-25 09:00:36,108 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:36,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:36,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:36,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195873033] [2021-03-25 09:00:36,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294523884] [2021-03-25 09:00:36,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:36,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:36,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:36,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:00:36,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:36,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:36,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,180 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:36,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:36,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,181 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,182 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,182 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:36,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,198 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 09:00:36,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:36,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:36,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:36,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,201 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,202 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,202 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:36,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:36,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-25 09:00:36,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1481 [2021-03-25 09:00:36,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1681 [2021-03-25 09:00:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4270 [2021-03-25 09:00:36,245 INFO L142 QuantifierPusher]: treesize reduction 21716, result has 0.8 percent of original size [2021-03-25 09:00:36,248 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:00:36,250 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-25 09:00:36,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-25 09:00:36,355 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-25 09:00:36,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:36,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-25 09:00:36,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:36,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-25 09:00:36,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,362 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:36,362 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,363 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,363 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:36,363 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,364 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,365 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-25 09:00:36,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,366 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,366 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,367 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:00:36,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:36,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:36,369 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size 89 [2021-03-25 09:00:36,369 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size [2021-03-25 09:00:36,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:00:36,432 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.8 percent of original size [2021-03-25 09:00:36,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:36,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:00:36,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,435 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-25 09:00:36,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-25 09:00:36,453 INFO L142 QuantifierPusher]: treesize reduction 231, result has 43.2 percent of original size [2021-03-25 09:00:36,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,455 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:36,456 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:00:36,456 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,458 INFO L142 QuantifierPusher]: treesize reduction 144, result has 52.2 percent of original size [2021-03-25 09:00:36,459 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:00:36,460 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,461 INFO L142 QuantifierPusher]: treesize reduction 152, result has 24.8 percent of original size [2021-03-25 09:00:36,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:36,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:36,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:36,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:36,490 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:36,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:36,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:36,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:36,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:36,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:36,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,495 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:36,496 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,496 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,497 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:36,497 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:36,513 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:36,515 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-25 09:00:36,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:36,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:36,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:36,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:00:36,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992775391] [2021-03-25 09:00:36,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:00:36,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:36,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:00:36,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:00:36,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-25 09:00:36,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 158 transitions, 2339 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:36,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:36,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-25 09:00:36,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:37,674 INFO L129 PetriNetUnfolder]: 177/488 cut-off events. [2021-03-25 09:00:37,674 INFO L130 PetriNetUnfolder]: For 18737/18747 co-relation queries the response was YES. [2021-03-25 09:00:37,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5099 conditions, 488 events. 177/488 cut-off events. For 18737/18747 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3123 event pairs, 10 based on Foata normal form. 8/492 useless extension candidates. Maximal degree in co-relation 4941. Up to 258 conditions per place. [2021-03-25 09:00:37,679 INFO L132 encePairwiseOnDemand]: 50/64 looper letters, 130 selfloop transitions, 62 changer transitions 4/200 dead transitions. [2021-03-25 09:00:37,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 200 transitions, 3916 flow [2021-03-25 09:00:37,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:00:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:00:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 249 transitions. [2021-03-25 09:00:37,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22886029411764705 [2021-03-25 09:00:37,681 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 249 transitions. [2021-03-25 09:00:37,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 249 transitions. [2021-03-25 09:00:37,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:37,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 249 transitions. [2021-03-25 09:00:37,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 14.647058823529411) internal successors, (249), 17 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:37,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 64.0) internal successors, (1152), 18 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:37,683 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 64.0) internal successors, (1152), 18 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:37,683 INFO L185 Difference]: Start difference. First operand has 207 places, 158 transitions, 2339 flow. Second operand 17 states and 249 transitions. [2021-03-25 09:00:37,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 200 transitions, 3916 flow [2021-03-25 09:00:37,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 200 transitions, 3902 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 09:00:37,749 INFO L241 Difference]: Finished difference. Result has 227 places, 172 transitions, 2947 flow [2021-03-25 09:00:37,750 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2325, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2947, PETRI_PLACES=227, PETRI_TRANSITIONS=172} [2021-03-25 09:00:37,750 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 211 predicate places. [2021-03-25 09:00:37,750 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:37,750 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 227 places, 172 transitions, 2947 flow [2021-03-25 09:00:37,750 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 227 places, 172 transitions, 2947 flow [2021-03-25 09:00:37,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 225 places, 172 transitions, 2947 flow [2021-03-25 09:00:37,798 INFO L129 PetriNetUnfolder]: 173/481 cut-off events. [2021-03-25 09:00:37,798 INFO L130 PetriNetUnfolder]: For 23293/23317 co-relation queries the response was YES. [2021-03-25 09:00:37,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5090 conditions, 481 events. 173/481 cut-off events. For 23293/23317 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3090 event pairs, 17 based on Foata normal form. 3/480 useless extension candidates. Maximal degree in co-relation 4926. Up to 252 conditions per place. [2021-03-25 09:00:37,803 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 09:00:37,808 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:37,808 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:37,808 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 09:00:37,808 INFO L480 AbstractCegarLoop]: Abstraction has has 225 places, 172 transitions, 2947 flow [2021-03-25 09:00:37,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:37,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:37,808 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:38,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable179 [2021-03-25 09:00:38,009 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:38,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:38,009 INFO L82 PathProgramCache]: Analyzing trace with hash -704282687, now seen corresponding path program 3 times [2021-03-25 09:00:38,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:38,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474600507] [2021-03-25 09:00:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:38,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:38,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:38,042 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-25 09:00:38,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:38,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:38,093 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-25 09:00:38,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:38,124 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-25 09:00:38,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:38,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:38,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474600507] [2021-03-25 09:00:38,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602540754] [2021-03-25 09:00:38,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:38,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:00:38,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:38,194 WARN L261 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-25 09:00:38,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:38,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:38,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:38,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:38,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:38,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:38,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:38,203 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-25 09:00:38,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:38,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:38,237 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.1 percent of original size [2021-03-25 09:00:38,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:38,238 INFO L147 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size 44 [2021-03-25 09:00:38,239 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.9 percent of original size [2021-03-25 09:00:38,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:38,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:00:38,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,241 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:38,242 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,242 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:38,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:38,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:38,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 285 [2021-03-25 09:00:38,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1495 [2021-03-25 09:00:38,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1681 [2021-03-25 09:00:38,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4284 [2021-03-25 09:00:38,279 INFO L142 QuantifierPusher]: treesize reduction 21730, result has 0.8 percent of original size [2021-03-25 09:00:38,281 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:00:38,281 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-25 09:00:38,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-25 09:00:38,343 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.9 percent of original size [2021-03-25 09:00:38,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:38,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-25 09:00:38,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-03-25 09:00:38,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-03-25 09:00:38,350 INFO L142 QuantifierPusher]: treesize reduction 214, result has 55.2 percent of original size [2021-03-25 09:00:38,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,352 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:38,352 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:00:38,353 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,353 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,355 INFO L142 QuantifierPusher]: treesize reduction 272, result has 42.7 percent of original size [2021-03-25 09:00:38,355 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:00:38,355 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,356 INFO L142 QuantifierPusher]: treesize reduction 164, result has 39.7 percent of original size [2021-03-25 09:00:38,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:38,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:38,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:38,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:38,391 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:00:38,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:38,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:38,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:38,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:38,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:00:38,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,398 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:00:38,398 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:38,398 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,399 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:00:38,399 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 2, 1] term [2021-03-25 09:00:38,400 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:38,400 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,403 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-03-25 09:00:38,403 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-25 09:00:38,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:38,426 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:38,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:38,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:38,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:38,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:38,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:38,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:38,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,430 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:38,431 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:38,431 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,432 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:38,432 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:00:38,432 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:38,432 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,433 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:38,433 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:38,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:38,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:38,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:00:38,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583734898] [2021-03-25 09:00:38,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:00:38,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:38,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:00:38,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:00:38,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-25 09:00:38,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 172 transitions, 2947 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:38,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:38,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-25 09:00:38,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:38,676 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-25 09:00:39,513 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2021-03-25 09:00:39,590 INFO L129 PetriNetUnfolder]: 184/512 cut-off events. [2021-03-25 09:00:39,590 INFO L130 PetriNetUnfolder]: For 25902/25930 co-relation queries the response was YES. [2021-03-25 09:00:39,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5963 conditions, 512 events. 184/512 cut-off events. For 25902/25930 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3319 event pairs, 10 based on Foata normal form. 11/519 useless extension candidates. Maximal degree in co-relation 5797. Up to 278 conditions per place. [2021-03-25 09:00:39,594 INFO L132 encePairwiseOnDemand]: 49/64 looper letters, 135 selfloop transitions, 68 changer transitions 7/214 dead transitions. [2021-03-25 09:00:39,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 214 transitions, 4739 flow [2021-03-25 09:00:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-25 09:00:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-25 09:00:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 301 transitions. [2021-03-25 09:00:39,595 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22395833333333334 [2021-03-25 09:00:39,595 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 301 transitions. [2021-03-25 09:00:39,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 301 transitions. [2021-03-25 09:00:39,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:39,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 301 transitions. [2021-03-25 09:00:39,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 14.333333333333334) internal successors, (301), 21 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:39,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 64.0) internal successors, (1408), 22 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:39,597 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 64.0) internal successors, (1408), 22 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:39,597 INFO L185 Difference]: Start difference. First operand has 225 places, 172 transitions, 2947 flow. Second operand 21 states and 301 transitions. [2021-03-25 09:00:39,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 214 transitions, 4739 flow [2021-03-25 09:00:39,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 214 transitions, 4262 flow, removed 209 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:39,682 INFO L241 Difference]: Finished difference. Result has 245 places, 183 transitions, 3101 flow [2021-03-25 09:00:39,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2566, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3101, PETRI_PLACES=245, PETRI_TRANSITIONS=183} [2021-03-25 09:00:39,683 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 229 predicate places. [2021-03-25 09:00:39,683 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:39,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 183 transitions, 3101 flow [2021-03-25 09:00:39,683 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 183 transitions, 3101 flow [2021-03-25 09:00:39,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 242 places, 183 transitions, 3101 flow [2021-03-25 09:00:39,733 INFO L129 PetriNetUnfolder]: 179/497 cut-off events. [2021-03-25 09:00:39,733 INFO L130 PetriNetUnfolder]: For 26336/26356 co-relation queries the response was YES. [2021-03-25 09:00:39,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5373 conditions, 497 events. 179/497 cut-off events. For 26336/26356 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3197 event pairs, 18 based on Foata normal form. 9/502 useless extension candidates. Maximal degree in co-relation 5201. Up to 256 conditions per place. [2021-03-25 09:00:39,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 09:00:40,146 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:40,147 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:40,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 464 [2021-03-25 09:00:40,147 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 183 transitions, 3121 flow [2021-03-25 09:00:40,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:40,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:40,147 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:40,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable189 [2021-03-25 09:00:40,354 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:40,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1902871965, now seen corresponding path program 2 times [2021-03-25 09:00:40,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:40,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065068390] [2021-03-25 09:00:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:40,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,382 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-25 09:00:40,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:00:40,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:40,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:40,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:40,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065068390] [2021-03-25 09:00:40,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957504577] [2021-03-25 09:00:40,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:40,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:40,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:40,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:00:40,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:40,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:40,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:40,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:40,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:40,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,488 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:40,489 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:40,489 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:40,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:40,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:40,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:40,502 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:00:40,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:40,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:40,504 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:00:40,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:40,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:40,520 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-25 09:00:40,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:40,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:40,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:40,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:40,533 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-25 09:00:40,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:40,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:40,535 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:40,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:40,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:40,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:40,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:00:40,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29277588] [2021-03-25 09:00:40,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:00:40,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:40,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:00:40,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:00:40,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-25 09:00:40,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 183 transitions, 3121 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:40,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:40,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-25 09:00:40,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:40,862 INFO L129 PetriNetUnfolder]: 185/506 cut-off events. [2021-03-25 09:00:40,862 INFO L130 PetriNetUnfolder]: For 27658/27666 co-relation queries the response was YES. [2021-03-25 09:00:40,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5935 conditions, 506 events. 185/506 cut-off events. For 27658/27666 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3247 event pairs, 11 based on Foata normal form. 2/504 useless extension candidates. Maximal degree in co-relation 5754. Up to 263 conditions per place. [2021-03-25 09:00:40,868 INFO L132 encePairwiseOnDemand]: 49/67 looper letters, 154 selfloop transitions, 45 changer transitions 0/205 dead transitions. [2021-03-25 09:00:40,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 205 transitions, 4367 flow [2021-03-25 09:00:40,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:00:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:00:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2021-03-25 09:00:40,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2802653399668325 [2021-03-25 09:00:40,870 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 169 transitions. [2021-03-25 09:00:40,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 169 transitions. [2021-03-25 09:00:40,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:40,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 169 transitions. [2021-03-25 09:00:40,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:40,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:40,871 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:40,871 INFO L185 Difference]: Start difference. First operand has 242 places, 183 transitions, 3121 flow. Second operand 9 states and 169 transitions. [2021-03-25 09:00:40,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 205 transitions, 4367 flow [2021-03-25 09:00:40,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 205 transitions, 3944 flow, removed 161 selfloop flow, removed 14 redundant places. [2021-03-25 09:00:40,995 INFO L241 Difference]: Finished difference. Result has 237 places, 184 transitions, 2842 flow [2021-03-25 09:00:40,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2716, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2842, PETRI_PLACES=237, PETRI_TRANSITIONS=184} [2021-03-25 09:00:40,995 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 221 predicate places. [2021-03-25 09:00:40,995 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:40,995 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 184 transitions, 2842 flow [2021-03-25 09:00:40,996 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 184 transitions, 2842 flow [2021-03-25 09:00:40,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 184 transitions, 2842 flow [2021-03-25 09:00:41,068 INFO L129 PetriNetUnfolder]: 181/506 cut-off events. [2021-03-25 09:00:41,068 INFO L130 PetriNetUnfolder]: For 24604/24658 co-relation queries the response was YES. [2021-03-25 09:00:41,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5169 conditions, 506 events. 181/506 cut-off events. For 24604/24658 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3332 event pairs, 19 based on Foata normal form. 3/505 useless extension candidates. Maximal degree in co-relation 5007. Up to 249 conditions per place. [2021-03-25 09:00:41,073 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-25 09:00:41,078 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:41,078 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:41,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 83 [2021-03-25 09:00:41,078 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 184 transitions, 2842 flow [2021-03-25 09:00:41,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,078 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:41,078 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:41,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:41,279 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:41,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:41,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1384281135, now seen corresponding path program 1 times [2021-03-25 09:00:41,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:41,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572606700] [2021-03-25 09:00:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:41,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:41,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:41,300 INFO L142 QuantifierPusher]: treesize reduction 245, result has 10.9 percent of original size [2021-03-25 09:00:41,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:41,310 INFO L142 QuantifierPusher]: treesize reduction 31, result has 20.5 percent of original size [2021-03-25 09:00:41,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:41,318 INFO L142 QuantifierPusher]: treesize reduction 32, result has 13.5 percent of original size [2021-03-25 09:00:41,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:41,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:41,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572606700] [2021-03-25 09:00:41,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:41,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:00:41,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799832011] [2021-03-25 09:00:41,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:41,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:41,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:41,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:41,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-25 09:00:41,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 184 transitions, 2842 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:41,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-25 09:00:41,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:41,513 INFO L129 PetriNetUnfolder]: 187/518 cut-off events. [2021-03-25 09:00:41,513 INFO L130 PetriNetUnfolder]: For 26016/26044 co-relation queries the response was YES. [2021-03-25 09:00:41,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5758 conditions, 518 events. 187/518 cut-off events. For 26016/26044 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3383 event pairs, 21 based on Foata normal form. 9/523 useless extension candidates. Maximal degree in co-relation 5587. Up to 388 conditions per place. [2021-03-25 09:00:41,518 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 168 selfloop transitions, 14 changer transitions 0/188 dead transitions. [2021-03-25 09:00:41,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 188 transitions, 3297 flow [2021-03-25 09:00:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2021-03-25 09:00:41,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2814498933901919 [2021-03-25 09:00:41,519 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 132 transitions. [2021-03-25 09:00:41,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 132 transitions. [2021-03-25 09:00:41,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:41,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 132 transitions. [2021-03-25 09:00:41,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,520 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 67.0) internal successors, (536), 8 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,520 INFO L185 Difference]: Start difference. First operand has 237 places, 184 transitions, 2842 flow. Second operand 7 states and 132 transitions. [2021-03-25 09:00:41,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 188 transitions, 3297 flow [2021-03-25 09:00:41,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 188 transitions, 3232 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:41,600 INFO L241 Difference]: Finished difference. Result has 240 places, 186 transitions, 2855 flow [2021-03-25 09:00:41,600 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2777, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2855, PETRI_PLACES=240, PETRI_TRANSITIONS=186} [2021-03-25 09:00:41,600 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 224 predicate places. [2021-03-25 09:00:41,600 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:41,600 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 186 transitions, 2855 flow [2021-03-25 09:00:41,601 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 186 transitions, 2855 flow [2021-03-25 09:00:41,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 240 places, 186 transitions, 2855 flow [2021-03-25 09:00:41,650 INFO L129 PetriNetUnfolder]: 183/513 cut-off events. [2021-03-25 09:00:41,650 INFO L130 PetriNetUnfolder]: For 25208/25262 co-relation queries the response was YES. [2021-03-25 09:00:41,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5269 conditions, 513 events. 183/513 cut-off events. For 25208/25262 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3413 event pairs, 20 based on Foata normal form. 3/512 useless extension candidates. Maximal degree in co-relation 5106. Up to 255 conditions per place. [2021-03-25 09:00:41,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-25 09:00:41,661 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:41,661 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:41,661 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 09:00:41,661 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 186 transitions, 2855 flow [2021-03-25 09:00:41,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,661 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:41,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:41,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-03-25 09:00:41,661 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:41,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1744454325, now seen corresponding path program 2 times [2021-03-25 09:00:41,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:41,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676840127] [2021-03-25 09:00:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:41,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:41,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:41,679 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-25 09:00:41,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:41,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:41,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:41,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:41,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:41,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676840127] [2021-03-25 09:00:41,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:41,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:00:41,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652543302] [2021-03-25 09:00:41,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:41,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:41,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:41,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:41,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-25 09:00:41,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 186 transitions, 2855 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:41,702 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-25 09:00:41,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:41,881 INFO L129 PetriNetUnfolder]: 186/512 cut-off events. [2021-03-25 09:00:41,882 INFO L130 PetriNetUnfolder]: For 25349/25357 co-relation queries the response was YES. [2021-03-25 09:00:41,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5721 conditions, 512 events. 186/512 cut-off events. For 25349/25357 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3306 event pairs, 23 based on Foata normal form. 5/513 useless extension candidates. Maximal degree in co-relation 5549. Up to 388 conditions per place. [2021-03-25 09:00:41,886 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 169 selfloop transitions, 11 changer transitions 1/187 dead transitions. [2021-03-25 09:00:41,886 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 187 transitions, 3263 flow [2021-03-25 09:00:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2021-03-25 09:00:41,887 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.291044776119403 [2021-03-25 09:00:41,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 117 transitions. [2021-03-25 09:00:41,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 117 transitions. [2021-03-25 09:00:41,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:41,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 117 transitions. [2021-03-25 09:00:41,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 67.0) internal successors, (469), 7 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:41,888 INFO L185 Difference]: Start difference. First operand has 240 places, 186 transitions, 2855 flow. Second operand 6 states and 117 transitions. [2021-03-25 09:00:41,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 187 transitions, 3263 flow [2021-03-25 09:00:41,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 187 transitions, 3220 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:41,977 INFO L241 Difference]: Finished difference. Result has 242 places, 184 transitions, 2811 flow [2021-03-25 09:00:41,977 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2804, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2811, PETRI_PLACES=242, PETRI_TRANSITIONS=184} [2021-03-25 09:00:41,977 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 226 predicate places. [2021-03-25 09:00:41,978 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:41,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 184 transitions, 2811 flow [2021-03-25 09:00:41,978 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 184 transitions, 2811 flow [2021-03-25 09:00:41,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 184 transitions, 2811 flow [2021-03-25 09:00:42,026 INFO L129 PetriNetUnfolder]: 182/506 cut-off events. [2021-03-25 09:00:42,027 INFO L130 PetriNetUnfolder]: For 24836/24890 co-relation queries the response was YES. [2021-03-25 09:00:42,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5199 conditions, 506 events. 182/506 cut-off events. For 24836/24890 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3330 event pairs, 20 based on Foata normal form. 3/505 useless extension candidates. Maximal degree in co-relation 5036. Up to 253 conditions per place. [2021-03-25 09:00:42,031 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-25 09:00:42,036 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:42,036 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:42,037 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 09:00:42,037 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 184 transitions, 2811 flow [2021-03-25 09:00:42,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:42,037 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:42,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-03-25 09:00:42,037 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:42,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1471062318, now seen corresponding path program 1 times [2021-03-25 09:00:42,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:42,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310110994] [2021-03-25 09:00:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:42,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,052 INFO L142 QuantifierPusher]: treesize reduction 63, result has 33.0 percent of original size [2021-03-25 09:00:42,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:42,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:00:42,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:42,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310110994] [2021-03-25 09:00:42,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736758043] [2021-03-25 09:00:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:42,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-25 09:00:42,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:42,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:42,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,108 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:42,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,109 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:42,110 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:42,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-25 09:00:42,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:00:42,116 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-25 09:00:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:00:42,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:00:42,137 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-03-25 09:00:42,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 09:00:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:00:42,141 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-25 09:00:42,141 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:42,141 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,142 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-25 09:00:42,142 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:42,143 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,143 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-25 09:00:42,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:42,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:42,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:42,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:42,161 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:00:42,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:42,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:42,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:42,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:42,170 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:42,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:42,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:00:42,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303485434] [2021-03-25 09:00:42,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:00:42,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:42,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:00:42,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:00:42,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 67 [2021-03-25 09:00:42,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 184 transitions, 2811 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:42,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 67 [2021-03-25 09:00:42,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:42,375 INFO L129 PetriNetUnfolder]: 189/506 cut-off events. [2021-03-25 09:00:42,375 INFO L130 PetriNetUnfolder]: For 24843/24851 co-relation queries the response was YES. [2021-03-25 09:00:42,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5727 conditions, 506 events. 189/506 cut-off events. For 24843/24851 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3173 event pairs, 21 based on Foata normal form. 8/511 useless extension candidates. Maximal degree in co-relation 5555. Up to 383 conditions per place. [2021-03-25 09:00:42,383 INFO L132 encePairwiseOnDemand]: 59/67 looper letters, 166 selfloop transitions, 15 changer transitions 0/187 dead transitions. [2021-03-25 09:00:42,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 187 transitions, 3376 flow [2021-03-25 09:00:42,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:00:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:00:42,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2021-03-25 09:00:42,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.27238805970149255 [2021-03-25 09:00:42,384 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 146 transitions. [2021-03-25 09:00:42,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 146 transitions. [2021-03-25 09:00:42,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:42,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 146 transitions. [2021-03-25 09:00:42,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,385 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,385 INFO L185 Difference]: Start difference. First operand has 239 places, 184 transitions, 2811 flow. Second operand 8 states and 146 transitions. [2021-03-25 09:00:42,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 187 transitions, 3376 flow [2021-03-25 09:00:42,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 187 transitions, 3325 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-25 09:00:42,478 INFO L241 Difference]: Finished difference. Result has 239 places, 183 transitions, 2809 flow [2021-03-25 09:00:42,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2750, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2809, PETRI_PLACES=239, PETRI_TRANSITIONS=183} [2021-03-25 09:00:42,479 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 223 predicate places. [2021-03-25 09:00:42,479 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:42,479 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 183 transitions, 2809 flow [2021-03-25 09:00:42,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 183 transitions, 2809 flow [2021-03-25 09:00:42,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 183 transitions, 2809 flow [2021-03-25 09:00:42,535 INFO L129 PetriNetUnfolder]: 185/498 cut-off events. [2021-03-25 09:00:42,535 INFO L130 PetriNetUnfolder]: For 23404/23426 co-relation queries the response was YES. [2021-03-25 09:00:42,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5186 conditions, 498 events. 185/498 cut-off events. For 23404/23426 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3205 event pairs, 21 based on Foata normal form. 3/498 useless extension candidates. Maximal degree in co-relation 5025. Up to 258 conditions per place. [2021-03-25 09:00:42,540 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 09:00:42,545 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:42,545 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:42,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-03-25 09:00:42,545 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 183 transitions, 2809 flow [2021-03-25 09:00:42,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:42,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:42,545 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:42,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:42,746 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:42,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1844268710, now seen corresponding path program 2 times [2021-03-25 09:00:42,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:42,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355894495] [2021-03-25 09:00:42,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:42,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:42,780 INFO L142 QuantifierPusher]: treesize reduction 125, result has 30.2 percent of original size [2021-03-25 09:00:42,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:42,818 INFO L142 QuantifierPusher]: treesize reduction 1169, result has 2.9 percent of original size [2021-03-25 09:00:42,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:42,839 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:42,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:42,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:42,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:42,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355894495] [2021-03-25 09:00:42,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961529201] [2021-03-25 09:00:42,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:42,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:42,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:42,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-25 09:00:42,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:42,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,907 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:42,907 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:42,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:42,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:42,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:42,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,912 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:42,913 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,913 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:42,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:42,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:42,933 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-25 09:00:42,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:42,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:42,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:42,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,936 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:42,936 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,937 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,937 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:42,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:42,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:42,959 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.0 percent of original size [2021-03-25 09:00:42,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:42,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:00:42,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 09:00:42,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 09:00:42,964 INFO L142 QuantifierPusher]: treesize reduction 1183, result has 11.8 percent of original size [2021-03-25 09:00:42,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,966 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-25 09:00:42,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,966 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:42,967 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,967 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-25 09:00:42,968 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-25 09:00:42,968 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-25 09:00:42,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,969 INFO L142 QuantifierPusher]: treesize reduction 57, result has 39.4 percent of original size [2021-03-25 09:00:42,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:00:42,970 INFO L147 QuantifierPusher]: treesize reduction 31, result has 59.7 percent of original size 46 [2021-03-25 09:00:42,970 INFO L142 QuantifierPusher]: treesize reduction 31, result has 59.7 percent of original size [2021-03-25 09:00:42,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:42,994 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-25 09:00:42,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:42,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:00:42,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-25 09:00:42,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 156 [2021-03-25 09:00:42,998 INFO L142 QuantifierPusher]: treesize reduction 46, result has 77.5 percent of original size [2021-03-25 09:00:42,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:42,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:42,999 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:42,999 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:43,000 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,000 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,000 INFO L142 QuantifierPusher]: treesize reduction 166, result has 37.4 percent of original size [2021-03-25 09:00:43,001 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:43,002 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,002 INFO L142 QuantifierPusher]: treesize reduction 50, result has 64.0 percent of original size [2021-03-25 09:00:43,002 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:43,003 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,003 INFO L142 QuantifierPusher]: treesize reduction 66, result has 36.5 percent of original size [2021-03-25 09:00:43,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:43,006 INFO L147 QuantifierPusher]: treesize reduction 7, result has 74.1 percent of original size 20 [2021-03-25 09:00:43,007 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-25 09:00:43,007 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-03-25 09:00:43,007 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-03-25 09:00:43,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:43,039 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 09:00:43,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:43,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:43,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:43,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:43,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:00:43,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,044 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-25 09:00:43,044 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:43,045 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,046 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.4 percent of original size 51 [2021-03-25 09:00:43,046 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:43,047 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:43,048 INFO L142 QuantifierPusher]: treesize reduction 26, result has 65.3 percent of original size [2021-03-25 09:00:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:43,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:43,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:43,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:00:43,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080666349] [2021-03-25 09:00:43,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:00:43,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:43,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:00:43,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:00:43,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 67 [2021-03-25 09:00:43,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 183 transitions, 2809 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:43,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:43,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 67 [2021-03-25 09:00:43,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:43,758 INFO L129 PetriNetUnfolder]: 197/538 cut-off events. [2021-03-25 09:00:43,758 INFO L130 PetriNetUnfolder]: For 25382/25390 co-relation queries the response was YES. [2021-03-25 09:00:43,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 538 events. 197/538 cut-off events. For 25382/25390 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3478 event pairs, 23 based on Foata normal form. 5/540 useless extension candidates. Maximal degree in co-relation 5935. Up to 420 conditions per place. [2021-03-25 09:00:43,764 INFO L132 encePairwiseOnDemand]: 54/67 looper letters, 167 selfloop transitions, 35 changer transitions 1/207 dead transitions. [2021-03-25 09:00:43,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 207 transitions, 3992 flow [2021-03-25 09:00:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:00:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:00:43,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 202 transitions. [2021-03-25 09:00:43,765 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21535181236673773 [2021-03-25 09:00:43,765 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 202 transitions. [2021-03-25 09:00:43,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 202 transitions. [2021-03-25 09:00:43,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:43,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 202 transitions. [2021-03-25 09:00:43,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 14 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:43,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 67.0) internal successors, (1005), 15 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:43,766 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 67.0) internal successors, (1005), 15 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:43,766 INFO L185 Difference]: Start difference. First operand has 239 places, 183 transitions, 2809 flow. Second operand 14 states and 202 transitions. [2021-03-25 09:00:43,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 207 transitions, 3992 flow [2021-03-25 09:00:43,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 3959 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:43,871 INFO L241 Difference]: Finished difference. Result has 251 places, 203 transitions, 3634 flow [2021-03-25 09:00:43,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=2776, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3634, PETRI_PLACES=251, PETRI_TRANSITIONS=203} [2021-03-25 09:00:43,871 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 235 predicate places. [2021-03-25 09:00:43,872 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:43,872 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 203 transitions, 3634 flow [2021-03-25 09:00:43,872 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 203 transitions, 3634 flow [2021-03-25 09:00:43,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 203 transitions, 3634 flow [2021-03-25 09:00:43,930 INFO L129 PetriNetUnfolder]: 194/526 cut-off events. [2021-03-25 09:00:43,930 INFO L130 PetriNetUnfolder]: For 27046/27061 co-relation queries the response was YES. [2021-03-25 09:00:43,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 526 events. 194/526 cut-off events. For 27046/27061 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3409 event pairs, 17 based on Foata normal form. 5/528 useless extension candidates. Maximal degree in co-relation 5644. Up to 276 conditions per place. [2021-03-25 09:00:43,936 INFO L142 LiptonReduction]: Number of co-enabled transitions 120 [2021-03-25 09:00:44,360 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:44,360 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:44,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 488 [2021-03-25 09:00:44,361 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 202 transitions, 3644 flow [2021-03-25 09:00:44,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:44,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:44,361 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:44,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable204 [2021-03-25 09:00:44,572 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:44,572 INFO L82 PathProgramCache]: Analyzing trace with hash 332483735, now seen corresponding path program 1 times [2021-03-25 09:00:44,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:44,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41306496] [2021-03-25 09:00:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:44,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:44,606 INFO L142 QuantifierPusher]: treesize reduction 1004, result has 27.4 percent of original size [2021-03-25 09:00:44,607 INFO L147 QuantifierPusher]: treesize reduction 14, result has 96.3 percent of original size 364 [2021-03-25 09:00:44,751 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2021-03-25 09:00:44,752 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.6 percent of original size [2021-03-25 09:00:44,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:44,776 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-03-25 09:00:44,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:44,797 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-03-25 09:00:44,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:44,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:44,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41306496] [2021-03-25 09:00:44,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774541377] [2021-03-25 09:00:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:44,864 WARN L261 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:00:44,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:44,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:44,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:44,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:44,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:44,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:44,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:44,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:44,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,872 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:44,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:44,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:44,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:00:44,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:00:44,875 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-25 09:00:44,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:00:44,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:00:44,922 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.2 percent of original size [2021-03-25 09:00:44,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:44,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:44,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-03-25 09:00:44,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:44,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:44,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:00:44,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 794 [2021-03-25 09:00:44,952 INFO L142 QuantifierPusher]: treesize reduction 43281, result has 0.5 percent of original size [2021-03-25 09:00:44,954 INFO L147 QuantifierPusher]: treesize reduction 68, result has 65.7 percent of original size 130 [2021-03-25 09:00:44,955 INFO L142 QuantifierPusher]: treesize reduction 68, result has 65.7 percent of original size [2021-03-25 09:00:44,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-25 09:00:45,054 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.6 percent of original size [2021-03-25 09:00:45,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-25 09:00:45,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-25 09:00:45,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-03-25 09:00:45,061 INFO L142 QuantifierPusher]: treesize reduction 214, result has 51.7 percent of original size [2021-03-25 09:00:45,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,063 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:45,064 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:45,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,067 INFO L142 QuantifierPusher]: treesize reduction 238, result has 41.2 percent of original size [2021-03-25 09:00:45,067 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:00:45,068 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,069 INFO L142 QuantifierPusher]: treesize reduction 82, result has 65.0 percent of original size [2021-03-25 09:00:45,070 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:00:45,070 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,071 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-25 09:00:45,074 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:00:45,075 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,075 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,076 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-25 09:00:45,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:45,079 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-25 09:00:45,081 INFO L147 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size 37 [2021-03-25 09:00:45,083 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-25 09:00:45,083 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-25 09:00:45,084 INFO L142 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size [2021-03-25 09:00:45,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:00:45,154 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:00:45,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:45,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:45,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:45,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:45,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:00:45,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,161 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:00:45,161 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:45,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,163 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:00:45,163 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:00:45,164 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,164 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,164 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:00:45,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:45,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:45,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:45,194 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:45,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:45,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:45,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:45,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:45,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:45,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,201 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:45,201 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:45,202 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,203 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:45,203 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:45,203 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:45,204 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-25 09:00:45,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:45,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:45,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:45,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:00:45,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908697751] [2021-03-25 09:00:45,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:00:45,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:45,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:00:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:00:45,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 70 [2021-03-25 09:00:45,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 202 transitions, 3644 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:45,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:45,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 70 [2021-03-25 09:00:45,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:45,686 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-03-25 09:00:45,994 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-03-25 09:00:46,122 INFO L129 PetriNetUnfolder]: 201/558 cut-off events. [2021-03-25 09:00:46,122 INFO L130 PetriNetUnfolder]: For 29676/29676 co-relation queries the response was YES. [2021-03-25 09:00:46,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6616 conditions, 558 events. 201/558 cut-off events. For 29676/29676 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3701 event pairs, 22 based on Foata normal form. 4/559 useless extension candidates. Maximal degree in co-relation 6435. Up to 428 conditions per place. [2021-03-25 09:00:46,127 INFO L132 encePairwiseOnDemand]: 56/70 looper letters, 187 selfloop transitions, 25 changer transitions 6/222 dead transitions. [2021-03-25 09:00:46,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 222 transitions, 4715 flow [2021-03-25 09:00:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:00:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:00:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 208 transitions. [2021-03-25 09:00:46,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21224489795918366 [2021-03-25 09:00:46,129 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 208 transitions. [2021-03-25 09:00:46,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 208 transitions. [2021-03-25 09:00:46,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:46,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 208 transitions. [2021-03-25 09:00:46,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:46,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 70.0) internal successors, (1050), 15 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:46,130 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 70.0) internal successors, (1050), 15 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:46,130 INFO L185 Difference]: Start difference. First operand has 250 places, 202 transitions, 3644 flow. Second operand 14 states and 208 transitions. [2021-03-25 09:00:46,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 222 transitions, 4715 flow [2021-03-25 09:00:46,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 222 transitions, 4029 flow, removed 335 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:46,240 INFO L241 Difference]: Finished difference. Result has 262 places, 210 transitions, 3244 flow [2021-03-25 09:00:46,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2976, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3244, PETRI_PLACES=262, PETRI_TRANSITIONS=210} [2021-03-25 09:00:46,240 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 246 predicate places. [2021-03-25 09:00:46,240 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:46,240 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 262 places, 210 transitions, 3244 flow [2021-03-25 09:00:46,240 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 262 places, 210 transitions, 3244 flow [2021-03-25 09:00:46,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 210 transitions, 3244 flow [2021-03-25 09:00:46,297 INFO L129 PetriNetUnfolder]: 195/535 cut-off events. [2021-03-25 09:00:46,297 INFO L130 PetriNetUnfolder]: For 27250/27269 co-relation queries the response was YES. [2021-03-25 09:00:46,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 535 events. 195/535 cut-off events. For 27250/27269 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3524 event pairs, 19 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 5542. Up to 267 conditions per place. [2021-03-25 09:00:46,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-25 09:00:46,448 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:46,448 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:00:46,448 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-03-25 09:00:46,448 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 210 transitions, 3252 flow [2021-03-25 09:00:46,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:46,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:46,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:46,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2021-03-25 09:00:46,660 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash -475418680, now seen corresponding path program 1 times [2021-03-25 09:00:46,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:46,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688561209] [2021-03-25 09:00:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:46,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:46,681 INFO L142 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size [2021-03-25 09:00:46,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:46,698 INFO L142 QuantifierPusher]: treesize reduction 146, result has 34.8 percent of original size [2021-03-25 09:00:46,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 09:00:46,735 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:00:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:46,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:46,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688561209] [2021-03-25 09:00:46,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278366182] [2021-03-25 09:00:46,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:46,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:00:46,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:46,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:46,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:46,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,781 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:46,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:46,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,783 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:46,783 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:46,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:46,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:46,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:46,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:46,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,786 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:46,790 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,790 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:46,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:46,806 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-25 09:00:46,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:46,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:46,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:46,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,809 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:46,809 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,810 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:46,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:46,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:46,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:46,831 INFO L142 QuantifierPusher]: treesize reduction 10, result has 86.1 percent of original size [2021-03-25 09:00:46,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:00:46,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:46,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:00:46,834 INFO L142 QuantifierPusher]: treesize reduction 107, result has 42.8 percent of original size [2021-03-25 09:00:46,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,835 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:46,835 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,836 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-25 09:00:46,837 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-25 09:00:46,837 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-25 09:00:46,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,838 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-03-25 09:00:46,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:00:46,838 INFO L147 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size 28 [2021-03-25 09:00:46,839 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-25 09:00:46,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:00:46,855 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-03-25 09:00:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:00:46,857 INFO L142 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-03-25 09:00:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:46,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:46,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:00:46,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246171262] [2021-03-25 09:00:46,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:00:46,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:46,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:00:46,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:00:46,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-25 09:00:46,861 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 210 transitions, 3252 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:46,861 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:46,861 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-25 09:00:46,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:47,201 INFO L129 PetriNetUnfolder]: 198/543 cut-off events. [2021-03-25 09:00:47,201 INFO L130 PetriNetUnfolder]: For 27535/27543 co-relation queries the response was YES. [2021-03-25 09:00:47,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6272 conditions, 543 events. 198/543 cut-off events. For 27535/27543 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3538 event pairs, 21 based on Foata normal form. 6/545 useless extension candidates. Maximal degree in co-relation 6136. Up to 412 conditions per place. [2021-03-25 09:00:47,206 INFO L132 encePairwiseOnDemand]: 59/71 looper letters, 190 selfloop transitions, 12 changer transitions 1/209 dead transitions. [2021-03-25 09:00:47,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 209 transitions, 3736 flow [2021-03-25 09:00:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:00:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:00:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2021-03-25 09:00:47,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25 [2021-03-25 09:00:47,216 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 142 transitions. [2021-03-25 09:00:47,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 142 transitions. [2021-03-25 09:00:47,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:47,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 142 transitions. [2021-03-25 09:00:47,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:47,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 71.0) internal successors, (639), 9 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:47,218 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 71.0) internal successors, (639), 9 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:47,218 INFO L185 Difference]: Start difference. First operand has 261 places, 210 transitions, 3252 flow. Second operand 8 states and 142 transitions. [2021-03-25 09:00:47,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 209 transitions, 3736 flow [2021-03-25 09:00:47,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 209 transitions, 3594 flow, removed 59 selfloop flow, removed 7 redundant places. [2021-03-25 09:00:47,337 INFO L241 Difference]: Finished difference. Result has 257 places, 206 transitions, 3081 flow [2021-03-25 09:00:47,337 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3084, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3081, PETRI_PLACES=257, PETRI_TRANSITIONS=206} [2021-03-25 09:00:47,338 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 241 predicate places. [2021-03-25 09:00:47,338 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:47,338 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 206 transitions, 3081 flow [2021-03-25 09:00:47,338 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 206 transitions, 3081 flow [2021-03-25 09:00:47,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 206 transitions, 3081 flow [2021-03-25 09:00:47,428 INFO L129 PetriNetUnfolder]: 193/528 cut-off events. [2021-03-25 09:00:47,428 INFO L130 PetriNetUnfolder]: For 26314/26331 co-relation queries the response was YES. [2021-03-25 09:00:47,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5527 conditions, 528 events. 193/528 cut-off events. For 26314/26331 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3451 event pairs, 17 based on Foata normal form. 7/531 useless extension candidates. Maximal degree in co-relation 5418. Up to 262 conditions per place. [2021-03-25 09:00:47,437 INFO L142 LiptonReduction]: Number of co-enabled transitions 124 [2021-03-25 09:00:47,446 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:47,446 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:47,446 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 108 [2021-03-25 09:00:47,446 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 206 transitions, 3081 flow [2021-03-25 09:00:47,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:47,446 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:47,446 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:47,659 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable222 [2021-03-25 09:00:47,660 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:47,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:47,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1852111961, now seen corresponding path program 1 times [2021-03-25 09:00:47,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:47,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266493801] [2021-03-25 09:00:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:47,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,686 INFO L142 QuantifierPusher]: treesize reduction 2525, result has 5.1 percent of original size [2021-03-25 09:00:47,687 INFO L147 QuantifierPusher]: treesize reduction 36, result has 73.5 percent of original size 100 [2021-03-25 09:00:47,735 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-25 09:00:47,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:47,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:47,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:47,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266493801] [2021-03-25 09:00:47,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891944093] [2021-03-25 09:00:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:47,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:00:47,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:47,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:47,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:47,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:47,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:00:47,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,789 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:00:47,789 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:00:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:47,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:00:47,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:00:47,793 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-25 09:00:47,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:00:47,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:00:47,831 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.6 percent of original size [2021-03-25 09:00:47,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-25 09:00:47,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-25 09:00:47,833 INFO L142 QuantifierPusher]: treesize reduction 203, result has 26.2 percent of original size [2021-03-25 09:00:47,834 INFO L147 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size 33 [2021-03-25 09:00:47,834 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-25 09:00:47,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:00:47,847 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.2 percent of original size [2021-03-25 09:00:47,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:00:47,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:47,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:00:47,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:00:47,850 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-25 09:00:47,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:47,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:47,852 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:47,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:47,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:47,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:00:47,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375802699] [2021-03-25 09:00:47,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:00:47,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:47,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:00:47,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:00:47,858 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-25 09:00:47,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 206 transitions, 3081 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:47,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:47,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-25 09:00:47,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:48,063 INFO L129 PetriNetUnfolder]: 200/546 cut-off events. [2021-03-25 09:00:48,063 INFO L130 PetriNetUnfolder]: For 28116/28124 co-relation queries the response was YES. [2021-03-25 09:00:48,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6163 conditions, 546 events. 200/546 cut-off events. For 28116/28124 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3554 event pairs, 22 based on Foata normal form. 6/548 useless extension candidates. Maximal degree in co-relation 6051. Up to 402 conditions per place. [2021-03-25 09:00:48,068 INFO L132 encePairwiseOnDemand]: 62/71 looper letters, 191 selfloop transitions, 16 changer transitions 0/213 dead transitions. [2021-03-25 09:00:48,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 213 transitions, 3745 flow [2021-03-25 09:00:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 131 transitions. [2021-03-25 09:00:48,069 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2635814889336016 [2021-03-25 09:00:48,069 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 131 transitions. [2021-03-25 09:00:48,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 131 transitions. [2021-03-25 09:00:48,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:48,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 131 transitions. [2021-03-25 09:00:48,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:48,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:48,069 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:48,069 INFO L185 Difference]: Start difference. First operand has 251 places, 206 transitions, 3081 flow. Second operand 7 states and 131 transitions. [2021-03-25 09:00:48,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 213 transitions, 3745 flow [2021-03-25 09:00:48,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 213 transitions, 3720 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:48,164 INFO L241 Difference]: Finished difference. Result has 252 places, 207 transitions, 3137 flow [2021-03-25 09:00:48,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3137, PETRI_PLACES=252, PETRI_TRANSITIONS=207} [2021-03-25 09:00:48,164 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 236 predicate places. [2021-03-25 09:00:48,165 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:48,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 207 transitions, 3137 flow [2021-03-25 09:00:48,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 207 transitions, 3137 flow [2021-03-25 09:00:48,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 252 places, 207 transitions, 3137 flow [2021-03-25 09:00:48,226 INFO L129 PetriNetUnfolder]: 196/534 cut-off events. [2021-03-25 09:00:48,226 INFO L130 PetriNetUnfolder]: For 27171/27188 co-relation queries the response was YES. [2021-03-25 09:00:48,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5643 conditions, 534 events. 196/534 cut-off events. For 27171/27188 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3493 event pairs, 17 based on Foata normal form. 7/538 useless extension candidates. Maximal degree in co-relation 5474. Up to 267 conditions per place. [2021-03-25 09:00:48,232 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-25 09:00:48,238 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:48,238 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:48,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-03-25 09:00:48,238 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 207 transitions, 3137 flow [2021-03-25 09:00:48,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:48,238 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:48,238 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:48,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable226 [2021-03-25 09:00:48,439 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:48,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1810649933, now seen corresponding path program 1 times [2021-03-25 09:00:48,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:48,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330554103] [2021-03-25 09:00:48,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:48,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:48,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:48,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:48,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:48,463 INFO L142 QuantifierPusher]: treesize reduction 2119, result has 20.8 percent of original size [2021-03-25 09:00:48,465 INFO L147 QuantifierPusher]: treesize reduction 70, result has 87.4 percent of original size 485 [2021-03-25 09:00:48,605 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2021-03-25 09:00:48,606 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-25 09:00:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:00:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:48,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:48,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:48,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:48,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330554103] [2021-03-25 09:00:48,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:48,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:00:48,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661852607] [2021-03-25 09:00:48,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:00:48,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:48,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:00:48,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:00:48,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-25 09:00:48,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 207 transitions, 3137 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:48,618 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:48,618 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-25 09:00:48,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:48,886 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-03-25 09:00:49,002 INFO L129 PetriNetUnfolder]: 199/542 cut-off events. [2021-03-25 09:00:49,002 INFO L130 PetriNetUnfolder]: For 27599/27607 co-relation queries the response was YES. [2021-03-25 09:00:49,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6124 conditions, 542 events. 199/542 cut-off events. For 27599/27607 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3506 event pairs, 22 based on Foata normal form. 5/544 useless extension candidates. Maximal degree in co-relation 5946. Up to 417 conditions per place. [2021-03-25 09:00:49,007 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 190 selfloop transitions, 8 changer transitions 2/206 dead transitions. [2021-03-25 09:00:49,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 206 transitions, 3530 flow [2021-03-25 09:00:49,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:00:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:00:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2021-03-25 09:00:49,008 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2652582159624413 [2021-03-25 09:00:49,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 113 transitions. [2021-03-25 09:00:49,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 113 transitions. [2021-03-25 09:00:49,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:49,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 113 transitions. [2021-03-25 09:00:49,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:49,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:49,009 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:49,009 INFO L185 Difference]: Start difference. First operand has 252 places, 207 transitions, 3137 flow. Second operand 6 states and 113 transitions. [2021-03-25 09:00:49,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 206 transitions, 3530 flow [2021-03-25 09:00:49,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 206 transitions, 3475 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:49,123 INFO L241 Difference]: Finished difference. Result has 252 places, 204 transitions, 3059 flow [2021-03-25 09:00:49,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3075, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3059, PETRI_PLACES=252, PETRI_TRANSITIONS=204} [2021-03-25 09:00:49,124 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 236 predicate places. [2021-03-25 09:00:49,124 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:49,124 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 204 transitions, 3059 flow [2021-03-25 09:00:49,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 204 transitions, 3059 flow [2021-03-25 09:00:49,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 247 places, 204 transitions, 3059 flow [2021-03-25 09:00:49,201 INFO L129 PetriNetUnfolder]: 194/524 cut-off events. [2021-03-25 09:00:49,201 INFO L130 PetriNetUnfolder]: For 26525/26542 co-relation queries the response was YES. [2021-03-25 09:00:49,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5515 conditions, 524 events. 194/524 cut-off events. For 26525/26542 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3366 event pairs, 19 based on Foata normal form. 7/528 useless extension candidates. Maximal degree in co-relation 5346. Up to 264 conditions per place. [2021-03-25 09:00:49,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-25 09:00:49,214 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:49,214 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:49,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 09:00:49,214 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 204 transitions, 3059 flow [2021-03-25 09:00:49,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:49,215 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:49,215 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:49,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-03-25 09:00:49,215 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:49,215 INFO L82 PathProgramCache]: Analyzing trace with hash 466685970, now seen corresponding path program 2 times [2021-03-25 09:00:49,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:49,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486441990] [2021-03-25 09:00:49,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:49,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:49,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:49,240 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-03-25 09:00:49,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:00:49,264 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-25 09:00:49,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:00:49,286 INFO L142 QuantifierPusher]: treesize reduction 1170, result has 2.9 percent of original size [2021-03-25 09:00:49,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:49,307 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:49,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:49,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:49,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486441990] [2021-03-25 09:00:49,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117885925] [2021-03-25 09:00:49,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:49,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:00:49,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:49,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-25 09:00:49,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:49,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:49,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:49,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:49,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:49,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:49,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:49,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:49,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,383 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,383 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,384 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:49,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:49,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:00:49,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:49,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:00:49,406 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-25 09:00:49,407 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:00:49,408 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:00:49,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:00:49,490 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-25 09:00:49,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:49,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:00:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:49,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:00:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,495 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:49,495 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,495 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,499 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:49,499 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,502 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:49,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,503 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,503 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,504 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:00:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 09:00:49,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 09:00:49,551 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.3 percent of original size [2021-03-25 09:00:49,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:00:49,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:49,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:00:49,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,553 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,554 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,554 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:49,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:49,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:49,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:00:49,583 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-25 09:00:49,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:49,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-25 09:00:49,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-25 09:00:49,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:00:49,587 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-25 09:00:49,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,588 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:49,588 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:49,589 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,589 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,590 INFO L142 QuantifierPusher]: treesize reduction 180, result has 31.0 percent of original size [2021-03-25 09:00:49,590 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:49,590 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,591 INFO L142 QuantifierPusher]: treesize reduction 79, result has 17.7 percent of original size [2021-03-25 09:00:49,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:49,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:49,614 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:49,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:49,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:49,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:49,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:49,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:49,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:49,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,620 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:49,620 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,621 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,622 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:49,622 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:00:49,622 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:49,622 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,623 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:49,623 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:49,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:49,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:49,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:49,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:00:49,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760809543] [2021-03-25 09:00:49,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:00:49,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:49,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:00:49,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:00:49,645 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 71 [2021-03-25 09:00:49,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 204 transitions, 3059 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:49,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:49,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 71 [2021-03-25 09:00:49,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:50,574 INFO L129 PetriNetUnfolder]: 205/561 cut-off events. [2021-03-25 09:00:50,574 INFO L130 PetriNetUnfolder]: For 29625/29633 co-relation queries the response was YES. [2021-03-25 09:00:50,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6439 conditions, 561 events. 205/561 cut-off events. For 29625/29633 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3703 event pairs, 13 based on Foata normal form. 2/560 useless extension candidates. Maximal degree in co-relation 6259. Up to 415 conditions per place. [2021-03-25 09:00:50,579 INFO L132 encePairwiseOnDemand]: 61/71 looper letters, 189 selfloop transitions, 35 changer transitions 4/232 dead transitions. [2021-03-25 09:00:50,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 232 transitions, 4478 flow [2021-03-25 09:00:50,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-25 09:00:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-25 09:00:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 231 transitions. [2021-03-25 09:00:50,580 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20334507042253522 [2021-03-25 09:00:50,580 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 231 transitions. [2021-03-25 09:00:50,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 231 transitions. [2021-03-25 09:00:50,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:50,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 231 transitions. [2021-03-25 09:00:50,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 14.4375) internal successors, (231), 16 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:50,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 71.0) internal successors, (1207), 17 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:50,582 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 71.0) internal successors, (1207), 17 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:50,582 INFO L185 Difference]: Start difference. First operand has 247 places, 204 transitions, 3059 flow. Second operand 16 states and 231 transitions. [2021-03-25 09:00:50,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 232 transitions, 4478 flow [2021-03-25 09:00:50,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 232 transitions, 4458 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:50,691 INFO L241 Difference]: Finished difference. Result has 264 places, 223 transitions, 3922 flow [2021-03-25 09:00:50,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=3041, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3922, PETRI_PLACES=264, PETRI_TRANSITIONS=223} [2021-03-25 09:00:50,692 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 248 predicate places. [2021-03-25 09:00:50,692 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:50,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 223 transitions, 3922 flow [2021-03-25 09:00:50,692 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 223 transitions, 3922 flow [2021-03-25 09:00:50,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 223 transitions, 3922 flow [2021-03-25 09:00:50,752 INFO L129 PetriNetUnfolder]: 201/547 cut-off events. [2021-03-25 09:00:50,753 INFO L130 PetriNetUnfolder]: For 30648/30680 co-relation queries the response was YES. [2021-03-25 09:00:50,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6067 conditions, 547 events. 201/547 cut-off events. For 30648/30680 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3577 event pairs, 17 based on Foata normal form. 3/547 useless extension candidates. Maximal degree in co-relation 5956. Up to 277 conditions per place. [2021-03-25 09:00:50,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-25 09:00:51,324 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:51,324 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:00:51,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 632 [2021-03-25 09:00:51,324 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 223 transitions, 3952 flow [2021-03-25 09:00:51,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:51,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:51,324 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:51,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:51,525 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:51,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:51,525 INFO L82 PathProgramCache]: Analyzing trace with hash -2108748328, now seen corresponding path program 3 times [2021-03-25 09:00:51,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:51,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048234086] [2021-03-25 09:00:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:51,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:51,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:51,551 INFO L142 QuantifierPusher]: treesize reduction 33, result has 73.2 percent of original size [2021-03-25 09:00:51,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-25 09:00:51,585 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.7 percent of original size [2021-03-25 09:00:51,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-25 09:00:51,626 INFO L142 QuantifierPusher]: treesize reduction 2287, result has 14.1 percent of original size [2021-03-25 09:00:51,627 INFO L147 QuantifierPusher]: treesize reduction 59, result has 84.3 percent of original size 317 [2021-03-25 09:00:51,720 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:51,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:51,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:51,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048234086] [2021-03-25 09:00:51,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776328928] [2021-03-25 09:00:51,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:51,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:00:51,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:00:51,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-25 09:00:51,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:51,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:51,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:51,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:51,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:51,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:51,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:51,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:51,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,796 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:51,796 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,797 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:51,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:51,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:00:51,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:51,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:00:51,821 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-25 09:00:51,822 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:00:51,822 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:00:51,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:00:51,919 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.2 percent of original size [2021-03-25 09:00:51,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:00:51,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:51,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 09:00:51,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,922 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:51,922 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,923 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:51,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:51,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:51,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:51,968 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-25 09:00:51,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:00:51,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:00:51,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:00:51,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:00:51,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,973 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:00:51,973 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:51,973 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,974 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:00:51,974 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:51,974 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:00:51,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,977 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:51,977 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:51,977 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:00:51,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:51,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 09:00:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 09:00:52,025 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-25 09:00:52,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:52,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-25 09:00:52,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-25 09:00:52,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:00:52,029 INFO L142 QuantifierPusher]: treesize reduction 231, result has 39.1 percent of original size [2021-03-25 09:00:52,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,030 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:52,031 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:52,031 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,032 INFO L142 QuantifierPusher]: treesize reduction 180, result has 31.0 percent of original size [2021-03-25 09:00:52,033 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:52,033 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,034 INFO L142 QuantifierPusher]: treesize reduction 79, result has 17.7 percent of original size [2021-03-25 09:00:52,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:52,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:52,060 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:00:52,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:52,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:52,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:00:52,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:52,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:00:52,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:52,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,065 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:00:52,065 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:52,065 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,066 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:00:52,066 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:00:52,066 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:52,066 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,067 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:00:52,067 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:00:52,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:52,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:52,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:52,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:52,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:00:52,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389842454] [2021-03-25 09:00:52,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:00:52,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:52,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:00:52,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:00:52,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-25 09:00:52,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 223 transitions, 3952 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:52,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:52,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-25 09:00:52,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:52,446 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-03-25 09:00:53,485 INFO L129 PetriNetUnfolder]: 210/595 cut-off events. [2021-03-25 09:00:53,485 INFO L130 PetriNetUnfolder]: For 34284/34316 co-relation queries the response was YES. [2021-03-25 09:00:53,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7177 conditions, 595 events. 210/595 cut-off events. For 34284/34316 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4084 event pairs, 13 based on Foata normal form. 13/605 useless extension candidates. Maximal degree in co-relation 7048. Up to 429 conditions per place. [2021-03-25 09:00:53,491 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 202 selfloop transitions, 39 changer transitions 7/252 dead transitions. [2021-03-25 09:00:53,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 252 transitions, 5490 flow [2021-03-25 09:00:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-25 09:00:53,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-25 09:00:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 291 transitions. [2021-03-25 09:00:53,492 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18725868725868725 [2021-03-25 09:00:53,492 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 291 transitions. [2021-03-25 09:00:53,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 291 transitions. [2021-03-25 09:00:53,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:53,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 291 transitions. [2021-03-25 09:00:53,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 13.857142857142858) internal successors, (291), 21 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:53,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 74.0) internal successors, (1628), 22 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:53,494 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 74.0) internal successors, (1628), 22 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:53,494 INFO L185 Difference]: Start difference. First operand has 261 places, 223 transitions, 3952 flow. Second operand 21 states and 291 transitions. [2021-03-25 09:00:53,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 252 transitions, 5490 flow [2021-03-25 09:00:53,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 252 transitions, 4460 flow, removed 511 selfloop flow, removed 5 redundant places. [2021-03-25 09:00:53,611 INFO L241 Difference]: Finished difference. Result has 280 places, 237 transitions, 3826 flow [2021-03-25 09:00:53,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=3268, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3826, PETRI_PLACES=280, PETRI_TRANSITIONS=237} [2021-03-25 09:00:53,611 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 264 predicate places. [2021-03-25 09:00:53,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:53,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 237 transitions, 3826 flow [2021-03-25 09:00:53,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 237 transitions, 3826 flow [2021-03-25 09:00:53,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 277 places, 237 transitions, 3826 flow [2021-03-25 09:00:53,673 INFO L129 PetriNetUnfolder]: 205/577 cut-off events. [2021-03-25 09:00:53,673 INFO L130 PetriNetUnfolder]: For 31689/31730 co-relation queries the response was YES. [2021-03-25 09:00:53,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6196 conditions, 577 events. 205/577 cut-off events. For 31689/31730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3915 event pairs, 10 based on Foata normal form. 1/575 useless extension candidates. Maximal degree in co-relation 6062. Up to 269 conditions per place. [2021-03-25 09:00:53,679 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-25 09:00:55,161 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:55,161 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 09:00:55,161 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1550 [2021-03-25 09:00:55,161 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 235 transitions, 3804 flow [2021-03-25 09:00:55,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:55,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:55,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable238 [2021-03-25 09:00:55,376 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:55,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:55,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1092187379, now seen corresponding path program 1 times [2021-03-25 09:00:55,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:55,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766503138] [2021-03-25 09:00:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:55,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,390 INFO L142 QuantifierPusher]: treesize reduction 67, result has 8.2 percent of original size [2021-03-25 09:00:55,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:55,394 INFO L142 QuantifierPusher]: treesize reduction 63, result has 31.5 percent of original size [2021-03-25 09:00:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:00:55,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:55,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766503138] [2021-03-25 09:00:55,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451618740] [2021-03-25 09:00:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:55,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 09:00:55,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:55,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:55,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:55,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:55,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,467 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:55,468 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:55,468 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:00:55,483 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-25 09:00:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:55,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:55,514 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.3 percent of original size [2021-03-25 09:00:55,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:55,517 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-25 09:00:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:55,521 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:55,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:55,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-25 09:00:55,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970305987] [2021-03-25 09:00:55,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 09:00:55,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:55,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 09:00:55,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 09:00:55,527 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2021-03-25 09:00:55,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 235 transitions, 3804 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:55,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2021-03-25 09:00:55,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:55,777 INFO L129 PetriNetUnfolder]: 207/572 cut-off events. [2021-03-25 09:00:55,777 INFO L130 PetriNetUnfolder]: For 32473/32534 co-relation queries the response was YES. [2021-03-25 09:00:55,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6683 conditions, 572 events. 207/572 cut-off events. For 32473/32534 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3829 event pairs, 13 based on Foata normal form. 16/586 useless extension candidates. Maximal degree in co-relation 6545. Up to 332 conditions per place. [2021-03-25 09:00:55,782 INFO L132 encePairwiseOnDemand]: 70/83 looper letters, 177 selfloop transitions, 25 changer transitions 1/238 dead transitions. [2021-03-25 09:00:55,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 238 transitions, 4393 flow [2021-03-25 09:00:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2021-03-25 09:00:55,783 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.270223752151463 [2021-03-25 09:00:55,783 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 157 transitions. [2021-03-25 09:00:55,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 157 transitions. [2021-03-25 09:00:55,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:55,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 157 transitions. [2021-03-25 09:00:55,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,783 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,784 INFO L185 Difference]: Start difference. First operand has 275 places, 235 transitions, 3804 flow. Second operand 7 states and 157 transitions. [2021-03-25 09:00:55,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 238 transitions, 4393 flow [2021-03-25 09:00:55,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 238 transitions, 3979 flow, removed 190 selfloop flow, removed 8 redundant places. [2021-03-25 09:00:55,903 INFO L241 Difference]: Finished difference. Result has 274 places, 233 transitions, 3461 flow [2021-03-25 09:00:55,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3461, PETRI_PLACES=274, PETRI_TRANSITIONS=233} [2021-03-25 09:00:55,903 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 258 predicate places. [2021-03-25 09:00:55,903 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:55,904 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 233 transitions, 3461 flow [2021-03-25 09:00:55,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 233 transitions, 3461 flow [2021-03-25 09:00:55,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 273 places, 233 transitions, 3461 flow [2021-03-25 09:00:55,983 INFO L129 PetriNetUnfolder]: 206/566 cut-off events. [2021-03-25 09:00:55,983 INFO L130 PetriNetUnfolder]: For 31950/31991 co-relation queries the response was YES. [2021-03-25 09:00:55,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6141 conditions, 566 events. 206/566 cut-off events. For 31950/31991 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3741 event pairs, 11 based on Foata normal form. 1/563 useless extension candidates. Maximal degree in co-relation 6007. Up to 266 conditions per place. [2021-03-25 09:00:55,989 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 09:00:55,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:55,998 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:55,999 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-03-25 09:00:55,999 INFO L480 AbstractCegarLoop]: Abstraction has has 273 places, 233 transitions, 3461 flow [2021-03-25 09:00:55,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:55,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:55,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:56,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable248 [2021-03-25 09:00:56,199 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:56,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:56,200 INFO L82 PathProgramCache]: Analyzing trace with hash -2131800975, now seen corresponding path program 1 times [2021-03-25 09:00:56,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:56,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632332036] [2021-03-25 09:00:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:56,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,216 INFO L142 QuantifierPusher]: treesize reduction 209, result has 4.6 percent of original size [2021-03-25 09:00:56,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:56,223 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-25 09:00:56,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:56,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:56,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:56,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632332036] [2021-03-25 09:00:56,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:56,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:56,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413700072] [2021-03-25 09:00:56,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:56,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:56,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:56,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:56,239 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-25 09:00:56,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 233 transitions, 3461 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:56,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-25 09:00:56,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:56,453 INFO L129 PetriNetUnfolder]: 211/577 cut-off events. [2021-03-25 09:00:56,453 INFO L130 PetriNetUnfolder]: For 34428/34460 co-relation queries the response was YES. [2021-03-25 09:00:56,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6799 conditions, 577 events. 211/577 cut-off events. For 34428/34460 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3808 event pairs, 17 based on Foata normal form. 12/585 useless extension candidates. Maximal degree in co-relation 6661. Up to 399 conditions per place. [2021-03-25 09:00:56,458 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 202 selfloop transitions, 29 changer transitions 0/237 dead transitions. [2021-03-25 09:00:56,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 237 transitions, 4255 flow [2021-03-25 09:00:56,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:00:56,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:00:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2021-03-25 09:00:56,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24784853700516352 [2021-03-25 09:00:56,459 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 144 transitions. [2021-03-25 09:00:56,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 144 transitions. [2021-03-25 09:00:56,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:56,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 144 transitions. [2021-03-25 09:00:56,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 20.571428571428573) internal successors, (144), 7 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,460 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 83.0) internal successors, (664), 8 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,460 INFO L185 Difference]: Start difference. First operand has 273 places, 233 transitions, 3461 flow. Second operand 7 states and 144 transitions. [2021-03-25 09:00:56,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 237 transitions, 4255 flow [2021-03-25 09:00:56,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 237 transitions, 4175 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:56,573 INFO L241 Difference]: Finished difference. Result has 274 places, 231 transitions, 3532 flow [2021-03-25 09:00:56,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3367, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3532, PETRI_PLACES=274, PETRI_TRANSITIONS=231} [2021-03-25 09:00:56,574 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 258 predicate places. [2021-03-25 09:00:56,574 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:56,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 231 transitions, 3532 flow [2021-03-25 09:00:56,574 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 231 transitions, 3532 flow [2021-03-25 09:00:56,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 231 transitions, 3532 flow [2021-03-25 09:00:56,646 INFO L129 PetriNetUnfolder]: 207/567 cut-off events. [2021-03-25 09:00:56,646 INFO L130 PetriNetUnfolder]: For 34351/34383 co-relation queries the response was YES. [2021-03-25 09:00:56,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6302 conditions, 567 events. 207/567 cut-off events. For 34351/34383 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3772 event pairs, 12 based on Foata normal form. 3/566 useless extension candidates. Maximal degree in co-relation 6167. Up to 272 conditions per place. [2021-03-25 09:00:56,655 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 09:00:56,663 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:56,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:56,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-25 09:00:56,663 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 231 transitions, 3532 flow [2021-03-25 09:00:56,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:56,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:56,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-03-25 09:00:56,664 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:56,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:56,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1670467524, now seen corresponding path program 1 times [2021-03-25 09:00:56,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:56,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118607157] [2021-03-25 09:00:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:56,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:56,696 INFO L142 QuantifierPusher]: treesize reduction 3834, result has 3.5 percent of original size [2021-03-25 09:00:56,696 INFO L147 QuantifierPusher]: treesize reduction 62, result has 54.7 percent of original size 75 [2021-03-25 09:00:56,737 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.7 percent of original size [2021-03-25 09:00:56,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:00:56,754 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:00:56,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:00:56,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:00:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:56,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118607157] [2021-03-25 09:00:56,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351405379] [2021-03-25 09:00:56,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:56,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjunts are in the unsatisfiable core [2021-03-25 09:00:56,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:56,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:56,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:56,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:56,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:56,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,824 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:56,824 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,824 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,824 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:56,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:56,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:56,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:00:56,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,842 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:56,842 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,843 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:00:56,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:56,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:56,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:00:56,865 INFO L142 QuantifierPusher]: treesize reduction 10, result has 97.4 percent of original size [2021-03-25 09:00:56,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:00:56,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-25 09:00:56,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 579 [2021-03-25 09:00:56,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 614 [2021-03-25 09:00:56,873 INFO L142 QuantifierPusher]: treesize reduction 1874, result has 4.6 percent of original size [2021-03-25 09:00:56,874 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-25 09:00:56,875 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-25 09:00:56,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:00:56,928 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.8 percent of original size [2021-03-25 09:00:56,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:00:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 09:00:56,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-25 09:00:56,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-03-25 09:00:56,932 INFO L142 QuantifierPusher]: treesize reduction 39, result has 75.5 percent of original size [2021-03-25 09:00:56,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,933 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:00:56,934 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:00:56,934 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,935 INFO L142 QuantifierPusher]: treesize reduction 121, result has 42.9 percent of original size [2021-03-25 09:00:56,936 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:00:56,936 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,937 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-25 09:00:56,938 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:00:56,939 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,939 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-25 09:00:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:56,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:56,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:56,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:56,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:00:56,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:00:56,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:56,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:00:56,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:56,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:56,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:00:56,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325149143] [2021-03-25 09:00:56,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:00:56,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:00:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:00:56,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 83 [2021-03-25 09:00:56,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 231 transitions, 3532 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:56,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:56,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 83 [2021-03-25 09:00:56,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:57,418 INFO L129 PetriNetUnfolder]: 216/584 cut-off events. [2021-03-25 09:00:57,418 INFO L130 PetriNetUnfolder]: For 37185/37217 co-relation queries the response was YES. [2021-03-25 09:00:57,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7046 conditions, 584 events. 216/584 cut-off events. For 37185/37217 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3861 event pairs, 15 based on Foata normal form. 10/590 useless extension candidates. Maximal degree in co-relation 6907. Up to 439 conditions per place. [2021-03-25 09:00:57,424 INFO L132 encePairwiseOnDemand]: 67/83 looper letters, 205 selfloop transitions, 32 changer transitions 3/244 dead transitions. [2021-03-25 09:00:57,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 244 transitions, 4517 flow [2021-03-25 09:00:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:00:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:00:57,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 177 transitions. [2021-03-25 09:00:57,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19386637458926614 [2021-03-25 09:00:57,425 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 177 transitions. [2021-03-25 09:00:57,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 177 transitions. [2021-03-25 09:00:57,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:57,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 177 transitions. [2021-03-25 09:00:57,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 16.09090909090909) internal successors, (177), 11 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:57,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:57,426 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 83.0) internal successors, (996), 12 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:57,426 INFO L185 Difference]: Start difference. First operand has 274 places, 231 transitions, 3532 flow. Second operand 11 states and 177 transitions. [2021-03-25 09:00:57,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 244 transitions, 4517 flow [2021-03-25 09:00:57,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 244 transitions, 4361 flow, removed 52 selfloop flow, removed 4 redundant places. [2021-03-25 09:00:57,548 INFO L241 Difference]: Finished difference. Result has 283 places, 238 transitions, 3827 flow [2021-03-25 09:00:57,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3425, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3827, PETRI_PLACES=283, PETRI_TRANSITIONS=238} [2021-03-25 09:00:57,548 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 267 predicate places. [2021-03-25 09:00:57,548 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:57,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 238 transitions, 3827 flow [2021-03-25 09:00:57,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 238 transitions, 3827 flow [2021-03-25 09:00:57,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 280 places, 238 transitions, 3827 flow [2021-03-25 09:00:57,612 INFO L129 PetriNetUnfolder]: 212/570 cut-off events. [2021-03-25 09:00:57,613 INFO L130 PetriNetUnfolder]: For 37019/37060 co-relation queries the response was YES. [2021-03-25 09:00:57,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6533 conditions, 570 events. 212/570 cut-off events. For 37019/37060 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3741 event pairs, 10 based on Foata normal form. 1/567 useless extension candidates. Maximal degree in co-relation 6395. Up to 279 conditions per place. [2021-03-25 09:00:57,619 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-25 09:00:57,626 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:57,626 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:57,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-25 09:00:57,626 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 238 transitions, 3827 flow [2021-03-25 09:00:57,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:57,626 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:57,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:57,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:57,827 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:57,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:57,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1784984128, now seen corresponding path program 1 times [2021-03-25 09:00:57,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:57,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373779679] [2021-03-25 09:00:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:57,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:57,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:57,853 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-25 09:00:57,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:00:57,860 INFO L142 QuantifierPusher]: treesize reduction 63, result has 33.0 percent of original size [2021-03-25 09:00:57,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:00:57,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:57,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:00:57,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:57,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:57,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373779679] [2021-03-25 09:00:57,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:00:57,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:00:57,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997207072] [2021-03-25 09:00:57,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:00:57,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:57,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:00:57,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:00:57,879 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-25 09:00:57,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 238 transitions, 3827 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:57,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:57,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-25 09:00:57,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:58,147 INFO L129 PetriNetUnfolder]: 215/574 cut-off events. [2021-03-25 09:00:58,147 INFO L130 PetriNetUnfolder]: For 38002/38034 co-relation queries the response was YES. [2021-03-25 09:00:58,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7067 conditions, 574 events. 215/574 cut-off events. For 38002/38034 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3726 event pairs, 17 based on Foata normal form. 9/579 useless extension candidates. Maximal degree in co-relation 6925. Up to 416 conditions per place. [2021-03-25 09:00:58,153 INFO L132 encePairwiseOnDemand]: 69/83 looper letters, 209 selfloop transitions, 22 changer transitions 1/238 dead transitions. [2021-03-25 09:00:58,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 238 transitions, 4378 flow [2021-03-25 09:00:58,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:00:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:00:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2021-03-25 09:00:58,154 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26506024096385544 [2021-03-25 09:00:58,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 110 transitions. [2021-03-25 09:00:58,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 110 transitions. [2021-03-25 09:00:58,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:58,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 110 transitions. [2021-03-25 09:00:58,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:58,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:58,155 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:58,155 INFO L185 Difference]: Start difference. First operand has 280 places, 238 transitions, 3827 flow. Second operand 5 states and 110 transitions. [2021-03-25 09:00:58,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 238 transitions, 4378 flow [2021-03-25 09:00:58,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 238 transitions, 4036 flow, removed 160 selfloop flow, removed 3 redundant places. [2021-03-25 09:00:58,289 INFO L241 Difference]: Finished difference. Result has 278 places, 234 transitions, 3492 flow [2021-03-25 09:00:58,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3466, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3492, PETRI_PLACES=278, PETRI_TRANSITIONS=234} [2021-03-25 09:00:58,289 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 262 predicate places. [2021-03-25 09:00:58,289 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:58,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 234 transitions, 3492 flow [2021-03-25 09:00:58,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 234 transitions, 3492 flow [2021-03-25 09:00:58,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 274 places, 234 transitions, 3492 flow [2021-03-25 09:00:58,351 INFO L129 PetriNetUnfolder]: 211/563 cut-off events. [2021-03-25 09:00:58,352 INFO L130 PetriNetUnfolder]: For 35546/35581 co-relation queries the response was YES. [2021-03-25 09:00:58,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6311 conditions, 563 events. 211/563 cut-off events. For 35546/35581 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3677 event pairs, 15 based on Foata normal form. 1/559 useless extension candidates. Maximal degree in co-relation 6172. Up to 270 conditions per place. [2021-03-25 09:00:58,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-25 09:00:58,376 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:58,376 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:58,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-25 09:00:58,377 INFO L480 AbstractCegarLoop]: Abstraction has has 274 places, 234 transitions, 3492 flow [2021-03-25 09:00:58,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:58,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:58,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:58,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-03-25 09:00:58,377 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash -905487154, now seen corresponding path program 1 times [2021-03-25 09:00:58,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:58,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236640998] [2021-03-25 09:00:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:58,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:58,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:58,424 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-25 09:00:58,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:00:58,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:58,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236640998] [2021-03-25 09:00:58,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621303872] [2021-03-25 09:00:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:58,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-25 09:00:58,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:58,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:00:58,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:00:58,501 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-25 09:00:58,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:58,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:00:58,534 INFO L142 QuantifierPusher]: treesize reduction 65, result has 50.0 percent of original size [2021-03-25 09:00:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:58,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:58,536 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.8 percent of original size [2021-03-25 09:00:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:00:58,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:00:58,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1275 [2021-03-25 09:00:58,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2668 [2021-03-25 09:00:58,581 INFO L142 QuantifierPusher]: treesize reduction 11115, result has 1.0 percent of original size [2021-03-25 09:00:58,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-25 09:00:58,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-25 09:00:58,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-25 09:00:58,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:58,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-25 09:00:58,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-03-25 09:00:58,631 INFO L142 QuantifierPusher]: treesize reduction 76, result has 38.7 percent of original size [2021-03-25 09:00:58,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:58,645 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:58,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:58,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:58,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:58,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:58,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:00:58,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83507354] [2021-03-25 09:00:58,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:00:58,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:58,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:00:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:00:58,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-25 09:00:58,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 234 transitions, 3492 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:58,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:58,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-25 09:00:58,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:00:59,235 INFO L129 PetriNetUnfolder]: 216/576 cut-off events. [2021-03-25 09:00:59,235 INFO L130 PetriNetUnfolder]: For 38105/38137 co-relation queries the response was YES. [2021-03-25 09:00:59,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6984 conditions, 576 events. 216/576 cut-off events. For 38105/38137 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3755 event pairs, 8 based on Foata normal form. 11/582 useless extension candidates. Maximal degree in co-relation 6874. Up to 305 conditions per place. [2021-03-25 09:00:59,241 INFO L132 encePairwiseOnDemand]: 61/83 looper letters, 177 selfloop transitions, 67 changer transitions 1/251 dead transitions. [2021-03-25 09:00:59,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 251 transitions, 4894 flow [2021-03-25 09:00:59,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:00:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:00:59,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 257 transitions. [2021-03-25 09:00:59,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20642570281124498 [2021-03-25 09:00:59,242 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 257 transitions. [2021-03-25 09:00:59,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 257 transitions. [2021-03-25 09:00:59,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:00:59,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 257 transitions. [2021-03-25 09:00:59,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 17.133333333333333) internal successors, (257), 15 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:59,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 83.0) internal successors, (1328), 16 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:59,244 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 83.0) internal successors, (1328), 16 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:59,244 INFO L185 Difference]: Start difference. First operand has 274 places, 234 transitions, 3492 flow. Second operand 15 states and 257 transitions. [2021-03-25 09:00:59,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 251 transitions, 4894 flow [2021-03-25 09:00:59,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 251 transitions, 4822 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-25 09:00:59,379 INFO L241 Difference]: Finished difference. Result has 280 places, 228 transitions, 3533 flow [2021-03-25 09:00:59,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3350, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3533, PETRI_PLACES=280, PETRI_TRANSITIONS=228} [2021-03-25 09:00:59,379 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 264 predicate places. [2021-03-25 09:00:59,379 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:00:59,379 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 228 transitions, 3533 flow [2021-03-25 09:00:59,379 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 228 transitions, 3533 flow [2021-03-25 09:00:59,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 279 places, 228 transitions, 3533 flow [2021-03-25 09:00:59,441 INFO L129 PetriNetUnfolder]: 212/564 cut-off events. [2021-03-25 09:00:59,442 INFO L130 PetriNetUnfolder]: For 36000/36032 co-relation queries the response was YES. [2021-03-25 09:00:59,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6434 conditions, 564 events. 212/564 cut-off events. For 36000/36032 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3676 event pairs, 17 based on Foata normal form. 3/562 useless extension candidates. Maximal degree in co-relation 6297. Up to 276 conditions per place. [2021-03-25 09:00:59,448 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-25 09:00:59,461 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:00:59,461 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:00:59,461 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 09:00:59,461 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 228 transitions, 3533 flow [2021-03-25 09:00:59,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:59,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:00:59,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:00:59,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable258 [2021-03-25 09:00:59,662 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:00:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:00:59,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2053366523, now seen corresponding path program 1 times [2021-03-25 09:00:59,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:00:59,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770288038] [2021-03-25 09:00:59,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:00:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:59,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:00:59,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:00:59,689 INFO L142 QuantifierPusher]: treesize reduction 17, result has 57.5 percent of original size [2021-03-25 09:00:59,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:59,700 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-25 09:00:59,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:00:59,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:59,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:59,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770288038] [2021-03-25 09:00:59,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298142089] [2021-03-25 09:00:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:00:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:00:59,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:00:59,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:00:59,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:59,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:59,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:00:59,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,756 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:59,756 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,757 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:59,757 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:59,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:59,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:59,769 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-25 09:00:59,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:59,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:00:59,771 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:00:59,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:59,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:00:59,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:59,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:59,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:00:59,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-25 09:00:59,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,789 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:00:59,790 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:59,790 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:00:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:00:59,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:00:59,817 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-25 09:00:59,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:00:59,839 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-25 09:00:59,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:00:59,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:00:59,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:00:59,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:00:59,841 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-25 09:00:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:59,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:00:59,843 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:00:59,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:00:59,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:00:59,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:00:59,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:00:59,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-25 09:00:59,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899771252] [2021-03-25 09:00:59,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:00:59,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:00:59,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:00:59,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:00:59,847 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2021-03-25 09:00:59,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 228 transitions, 3533 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:00:59,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:00:59,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2021-03-25 09:00:59,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:00,172 INFO L129 PetriNetUnfolder]: 218/571 cut-off events. [2021-03-25 09:01:00,173 INFO L130 PetriNetUnfolder]: For 38125/38157 co-relation queries the response was YES. [2021-03-25 09:01:00,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7031 conditions, 571 events. 218/571 cut-off events. For 38125/38157 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3636 event pairs, 12 based on Foata normal form. 11/577 useless extension candidates. Maximal degree in co-relation 6890. Up to 282 conditions per place. [2021-03-25 09:01:00,178 INFO L132 encePairwiseOnDemand]: 61/83 looper letters, 187 selfloop transitions, 53 changer transitions 0/246 dead transitions. [2021-03-25 09:01:00,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 246 transitions, 4777 flow [2021-03-25 09:01:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 190 transitions. [2021-03-25 09:01:00,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2289156626506024 [2021-03-25 09:01:00,179 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 190 transitions. [2021-03-25 09:01:00,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 190 transitions. [2021-03-25 09:01:00,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:00,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 190 transitions. [2021-03-25 09:01:00,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:00,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:00,180 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:00,180 INFO L185 Difference]: Start difference. First operand has 279 places, 228 transitions, 3533 flow. Second operand 10 states and 190 transitions. [2021-03-25 09:01:00,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 246 transitions, 4777 flow [2021-03-25 09:01:00,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 246 transitions, 4641 flow, removed 11 selfloop flow, removed 8 redundant places. [2021-03-25 09:01:00,307 INFO L241 Difference]: Finished difference. Result has 281 places, 229 transitions, 3553 flow [2021-03-25 09:01:00,307 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=3397, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3553, PETRI_PLACES=281, PETRI_TRANSITIONS=229} [2021-03-25 09:01:00,307 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 265 predicate places. [2021-03-25 09:01:00,307 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:00,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 281 places, 229 transitions, 3553 flow [2021-03-25 09:01:00,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 281 places, 229 transitions, 3553 flow [2021-03-25 09:01:00,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 281 places, 229 transitions, 3553 flow [2021-03-25 09:01:00,370 INFO L129 PetriNetUnfolder]: 214/567 cut-off events. [2021-03-25 09:01:00,370 INFO L130 PetriNetUnfolder]: For 36372/36407 co-relation queries the response was YES. [2021-03-25 09:01:00,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6478 conditions, 567 events. 214/567 cut-off events. For 36372/36407 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3682 event pairs, 11 based on Foata normal form. 1/563 useless extension candidates. Maximal degree in co-relation 6340. Up to 279 conditions per place. [2021-03-25 09:01:00,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-25 09:01:00,584 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:00,584 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:00,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 277 [2021-03-25 09:01:00,585 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 229 transitions, 3588 flow [2021-03-25 09:01:00,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:00,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:00,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:00,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:00,800 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:00,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1480069583, now seen corresponding path program 1 times [2021-03-25 09:01:00,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:00,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493185679] [2021-03-25 09:01:00,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:00,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:00,823 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-25 09:01:00,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:00,827 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.3 percent of original size [2021-03-25 09:01:00,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:00,845 INFO L142 QuantifierPusher]: treesize reduction 31, result has 56.3 percent of original size [2021-03-25 09:01:00,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:01:00,870 INFO L142 QuantifierPusher]: treesize reduction 31, result has 50.0 percent of original size [2021-03-25 09:01:00,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:00,888 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:00,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:00,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:00,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:00,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493185679] [2021-03-25 09:01:00,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940744309] [2021-03-25 09:01:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:00,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:01:00,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:00,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:00,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:00,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:00,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:00,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:00,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:00,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:00,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:00,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,960 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:00,960 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:00,961 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:00,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:00,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:00,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:00,977 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.0 percent of original size [2021-03-25 09:01:00,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:00,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:00,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:00,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:00,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:00,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:00,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 09:01:00,980 INFO L142 QuantifierPusher]: treesize reduction 23, result has 78.1 percent of original size [2021-03-25 09:01:00,981 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-25 09:01:00,982 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-25 09:01:00,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:01,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:01,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:01,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:01,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:01,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:01,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:01,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:01,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,026 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,026 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,027 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 09:01:01,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 09:01:01,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:01:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:01,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,073 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:01:01,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:01,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,075 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:01:01,075 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,075 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,076 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:01:01,076 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,079 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:01:01,080 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,080 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,081 INFO L142 QuantifierPusher]: treesize reduction 48, result has 61.0 percent of original size [2021-03-25 09:01:01,081 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,081 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,082 INFO L142 QuantifierPusher]: treesize reduction 36, result has 45.5 percent of original size [2021-03-25 09:01:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:01,117 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-25 09:01:01,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:01,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 09:01:01,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-25 09:01:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-25 09:01:01,121 INFO L142 QuantifierPusher]: treesize reduction 214, result has 44.3 percent of original size [2021-03-25 09:01:01,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,122 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:01,122 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:01,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,124 INFO L142 QuantifierPusher]: treesize reduction 176, result has 38.7 percent of original size [2021-03-25 09:01:01,124 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:01,124 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,125 INFO L142 QuantifierPusher]: treesize reduction 105, result has 30.5 percent of original size [2021-03-25 09:01:01,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:01,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:01,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:01,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:01,154 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:01:01,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:01,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:01,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:01,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:01,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,159 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,159 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:01:01,159 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:01,160 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,161 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:01:01,162 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:01,162 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:01,163 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-25 09:01:01,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:01,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:01,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:01,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:01,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:01,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407321572] [2021-03-25 09:01:01,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:01,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:01,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:01,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:01,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 84 [2021-03-25 09:01:01,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 229 transitions, 3588 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:01,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:01,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 84 [2021-03-25 09:01:01,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:02,464 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2021-03-25 09:01:02,651 INFO L129 PetriNetUnfolder]: 222/595 cut-off events. [2021-03-25 09:01:02,651 INFO L130 PetriNetUnfolder]: For 39667/39699 co-relation queries the response was YES. [2021-03-25 09:01:02,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7422 conditions, 595 events. 222/595 cut-off events. For 39667/39699 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3930 event pairs, 9 based on Foata normal form. 9/599 useless extension candidates. Maximal degree in co-relation 7268. Up to 356 conditions per place. [2021-03-25 09:01:02,656 INFO L132 encePairwiseOnDemand]: 60/84 looper letters, 193 selfloop transitions, 64 changer transitions 2/263 dead transitions. [2021-03-25 09:01:02,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 263 transitions, 5472 flow [2021-03-25 09:01:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-25 09:01:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-25 09:01:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 276 transitions. [2021-03-25 09:01:02,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17293233082706766 [2021-03-25 09:01:02,657 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 276 transitions. [2021-03-25 09:01:02,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 276 transitions. [2021-03-25 09:01:02,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:02,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 276 transitions. [2021-03-25 09:01:02,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 14.526315789473685) internal successors, (276), 19 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:02,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 84.0) internal successors, (1680), 20 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:02,659 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 84.0) internal successors, (1680), 20 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:02,659 INFO L185 Difference]: Start difference. First operand has 281 places, 229 transitions, 3588 flow. Second operand 19 states and 276 transitions. [2021-03-25 09:01:02,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 263 transitions, 5472 flow [2021-03-25 09:01:02,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 263 transitions, 5271 flow, removed 69 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:02,846 INFO L241 Difference]: Finished difference. Result has 298 places, 237 transitions, 3883 flow [2021-03-25 09:01:02,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=3456, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3883, PETRI_PLACES=298, PETRI_TRANSITIONS=237} [2021-03-25 09:01:02,846 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 282 predicate places. [2021-03-25 09:01:02,846 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:02,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 237 transitions, 3883 flow [2021-03-25 09:01:02,846 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 237 transitions, 3883 flow [2021-03-25 09:01:02,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 297 places, 237 transitions, 3883 flow [2021-03-25 09:01:02,938 INFO L129 PetriNetUnfolder]: 218/586 cut-off events. [2021-03-25 09:01:02,939 INFO L130 PetriNetUnfolder]: For 40078/40110 co-relation queries the response was YES. [2021-03-25 09:01:02,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6955 conditions, 586 events. 218/586 cut-off events. For 40078/40110 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3879 event pairs, 10 based on Foata normal form. 3/584 useless extension candidates. Maximal degree in co-relation 6812. Up to 291 conditions per place. [2021-03-25 09:01:02,949 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 09:01:03,348 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:03,348 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:01:03,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 502 [2021-03-25 09:01:03,348 INFO L480 AbstractCegarLoop]: Abstraction has has 296 places, 236 transitions, 3895 flow [2021-03-25 09:01:03,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:03,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:03,349 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:03,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:03,571 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:03,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:03,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1734337477, now seen corresponding path program 2 times [2021-03-25 09:01:03,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:03,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786468023] [2021-03-25 09:01:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:03,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,585 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-25 09:01:03,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:01:03,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:01:03,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:03,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:03,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786468023] [2021-03-25 09:01:03,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896771561] [2021-03-25 09:01:03,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:03,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:03,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:03,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:03,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:03,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:03,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:03,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:03,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:03,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,670 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:03,671 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:03,672 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:03,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:03,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:03,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:03,685 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-25 09:01:03,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:01:03,687 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:01:03,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:03,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-03-25 09:01:03,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:03,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 471 [2021-03-25 09:01:03,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 472 [2021-03-25 09:01:03,709 INFO L142 QuantifierPusher]: treesize reduction 645, result has 16.7 percent of original size [2021-03-25 09:01:03,710 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:03,710 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,710 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:03,711 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-25 09:01:03,711 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:03,712 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:03,712 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-25 09:01:03,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:03,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:03,730 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:01:03,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:03,734 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:03,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:03,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:03,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:03,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:03,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723189490] [2021-03-25 09:01:03,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:03,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:03,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:03,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:03,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-25 09:01:03,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 236 transitions, 3895 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:03,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:03,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-25 09:01:03,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:04,075 INFO L129 PetriNetUnfolder]: 222/585 cut-off events. [2021-03-25 09:01:04,076 INFO L130 PetriNetUnfolder]: For 40517/40525 co-relation queries the response was YES. [2021-03-25 09:01:04,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7481 conditions, 585 events. 222/585 cut-off events. For 40517/40525 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3794 event pairs, 10 based on Foata normal form. 2/582 useless extension candidates. Maximal degree in co-relation 7320. Up to 294 conditions per place. [2021-03-25 09:01:04,081 INFO L132 encePairwiseOnDemand]: 63/86 looper letters, 194 selfloop transitions, 54 changer transitions 0/254 dead transitions. [2021-03-25 09:01:04,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 254 transitions, 5164 flow [2021-03-25 09:01:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2021-03-25 09:01:04,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22209302325581395 [2021-03-25 09:01:04,082 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 191 transitions. [2021-03-25 09:01:04,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 191 transitions. [2021-03-25 09:01:04,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:04,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 191 transitions. [2021-03-25 09:01:04,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.1) internal successors, (191), 10 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:04,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:04,083 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:04,084 INFO L185 Difference]: Start difference. First operand has 296 places, 236 transitions, 3895 flow. Second operand 10 states and 191 transitions. [2021-03-25 09:01:04,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 254 transitions, 5164 flow [2021-03-25 09:01:04,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 254 transitions, 4937 flow, removed 95 selfloop flow, removed 9 redundant places. [2021-03-25 09:01:04,260 INFO L241 Difference]: Finished difference. Result has 298 places, 238 transitions, 3848 flow [2021-03-25 09:01:04,260 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3678, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3848, PETRI_PLACES=298, PETRI_TRANSITIONS=238} [2021-03-25 09:01:04,260 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 282 predicate places. [2021-03-25 09:01:04,261 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:04,261 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 238 transitions, 3848 flow [2021-03-25 09:01:04,261 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 238 transitions, 3848 flow [2021-03-25 09:01:04,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 238 transitions, 3848 flow [2021-03-25 09:01:04,353 INFO L129 PetriNetUnfolder]: 218/581 cut-off events. [2021-03-25 09:01:04,353 INFO L130 PetriNetUnfolder]: For 39666/39698 co-relation queries the response was YES. [2021-03-25 09:01:04,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 581 events. 218/581 cut-off events. For 39666/39698 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3825 event pairs, 12 based on Foata normal form. 3/579 useless extension candidates. Maximal degree in co-relation 6748. Up to 286 conditions per place. [2021-03-25 09:01:04,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-25 09:01:04,370 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:04,370 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:04,370 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-03-25 09:01:04,370 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 238 transitions, 3848 flow [2021-03-25 09:01:04,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:04,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:04,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:04,571 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:04,571 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:04,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:04,571 INFO L82 PathProgramCache]: Analyzing trace with hash -826615451, now seen corresponding path program 1 times [2021-03-25 09:01:04,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:04,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754325329] [2021-03-25 09:01:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:04,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,609 INFO L142 QuantifierPusher]: treesize reduction 4234, result has 3.3 percent of original size [2021-03-25 09:01:04,609 INFO L147 QuantifierPusher]: treesize reduction 96, result has 34.2 percent of original size 50 [2021-03-25 09:01:04,652 INFO L142 QuantifierPusher]: treesize reduction 6553, result has 2.9 percent of original size [2021-03-25 09:01:04,653 INFO L147 QuantifierPusher]: treesize reduction 85, result has 56.6 percent of original size 111 [2021-03-25 09:01:04,707 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-25 09:01:04,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:04,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:04,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:04,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754325329] [2021-03-25 09:01:04,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694700579] [2021-03-25 09:01:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:04,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:04,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:04,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:04,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,766 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:04,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:04,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:04,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,768 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:04,768 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:04,769 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:04,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:04,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,789 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:04,790 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:04,791 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:04,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:04,815 INFO L142 QuantifierPusher]: treesize reduction 9, result has 95.3 percent of original size [2021-03-25 09:01:04,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-25 09:01:04,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-25 09:01:04,816 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.1 percent of original size [2021-03-25 09:01:04,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:04,842 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-25 09:01:04,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:01:04,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:04,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:04,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:04,857 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-25 09:01:04,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:04,860 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:04,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:04,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:04,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:04,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728104229] [2021-03-25 09:01:04,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:04,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:04,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:04,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:04,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-25 09:01:04,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 238 transitions, 3848 flow. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:04,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:04,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-25 09:01:04,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:05,346 INFO L129 PetriNetUnfolder]: 241/667 cut-off events. [2021-03-25 09:01:05,346 INFO L130 PetriNetUnfolder]: For 51655/51663 co-relation queries the response was YES. [2021-03-25 09:01:05,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8724 conditions, 667 events. 241/667 cut-off events. For 51655/51663 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4636 event pairs, 1 based on Foata normal form. 4/665 useless extension candidates. Maximal degree in co-relation 8546. Up to 341 conditions per place. [2021-03-25 09:01:05,353 INFO L132 encePairwiseOnDemand]: 56/86 looper letters, 158 selfloop transitions, 119 changer transitions 2/285 dead transitions. [2021-03-25 09:01:05,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 285 transitions, 5552 flow [2021-03-25 09:01:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 191 transitions. [2021-03-25 09:01:05,354 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22209302325581395 [2021-03-25 09:01:05,354 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 191 transitions. [2021-03-25 09:01:05,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 191 transitions. [2021-03-25 09:01:05,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:05,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 191 transitions. [2021-03-25 09:01:05,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.1) internal successors, (191), 10 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:05,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:05,355 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:05,355 INFO L185 Difference]: Start difference. First operand has 298 places, 238 transitions, 3848 flow. Second operand 10 states and 191 transitions. [2021-03-25 09:01:05,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 285 transitions, 5552 flow [2021-03-25 09:01:05,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 285 transitions, 5379 flow, removed 13 selfloop flow, removed 8 redundant places. [2021-03-25 09:01:05,518 INFO L241 Difference]: Finished difference. Result has 303 places, 275 transitions, 5021 flow [2021-03-25 09:01:05,518 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3695, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5021, PETRI_PLACES=303, PETRI_TRANSITIONS=275} [2021-03-25 09:01:05,519 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 287 predicate places. [2021-03-25 09:01:05,519 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:05,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 275 transitions, 5021 flow [2021-03-25 09:01:05,519 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 275 transitions, 5021 flow [2021-03-25 09:01:05,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 303 places, 275 transitions, 5021 flow [2021-03-25 09:01:05,602 INFO L129 PetriNetUnfolder]: 238/654 cut-off events. [2021-03-25 09:01:05,602 INFO L130 PetriNetUnfolder]: For 52502/52517 co-relation queries the response was YES. [2021-03-25 09:01:05,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8501 conditions, 654 events. 238/654 cut-off events. For 52502/52517 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4590 event pairs, 9 based on Foata normal form. 11/663 useless extension candidates. Maximal degree in co-relation 8325. Up to 330 conditions per place. [2021-03-25 09:01:05,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 09:01:05,620 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:05,620 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:05,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 101 [2021-03-25 09:01:05,620 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 275 transitions, 5021 flow [2021-03-25 09:01:05,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:05,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:05,620 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:05,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable277 [2021-03-25 09:01:05,821 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1585916963, now seen corresponding path program 1 times [2021-03-25 09:01:05,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:05,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470801747] [2021-03-25 09:01:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:05,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:05,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:05,835 INFO L142 QuantifierPusher]: treesize reduction 209, result has 4.6 percent of original size [2021-03-25 09:01:05,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:05,842 INFO L142 QuantifierPusher]: treesize reduction 228, result has 11.6 percent of original size [2021-03-25 09:01:05,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:05,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:05,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:05,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:05,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:05,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:05,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:05,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470801747] [2021-03-25 09:01:05,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:01:05,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:01:05,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6711257] [2021-03-25 09:01:05,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:01:05,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:05,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:01:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:01:05,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 86 [2021-03-25 09:01:05,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 275 transitions, 5021 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:05,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:05,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 86 [2021-03-25 09:01:05,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:06,105 INFO L129 PetriNetUnfolder]: 240/656 cut-off events. [2021-03-25 09:01:06,105 INFO L130 PetriNetUnfolder]: For 54191/54223 co-relation queries the response was YES. [2021-03-25 09:01:06,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9092 conditions, 656 events. 240/656 cut-off events. For 54191/54223 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4501 event pairs, 14 based on Foata normal form. 9/663 useless extension candidates. Maximal degree in co-relation 8939. Up to 471 conditions per place. [2021-03-25 09:01:06,111 INFO L132 encePairwiseOnDemand]: 72/86 looper letters, 244 selfloop transitions, 26 changer transitions 1/277 dead transitions. [2021-03-25 09:01:06,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 277 transitions, 5683 flow [2021-03-25 09:01:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:01:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:01:06,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2021-03-25 09:01:06,112 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24612403100775193 [2021-03-25 09:01:06,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 127 transitions. [2021-03-25 09:01:06,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 127 transitions. [2021-03-25 09:01:06,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:06,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 127 transitions. [2021-03-25 09:01:06,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:06,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:06,113 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 86.0) internal successors, (602), 7 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:06,113 INFO L185 Difference]: Start difference. First operand has 303 places, 275 transitions, 5021 flow. Second operand 6 states and 127 transitions. [2021-03-25 09:01:06,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 277 transitions, 5683 flow [2021-03-25 09:01:06,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 277 transitions, 5464 flow, removed 92 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:06,352 INFO L241 Difference]: Finished difference. Result has 302 places, 272 transitions, 4816 flow [2021-03-25 09:01:06,352 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=4772, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4816, PETRI_PLACES=302, PETRI_TRANSITIONS=272} [2021-03-25 09:01:06,352 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 286 predicate places. [2021-03-25 09:01:06,352 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:06,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 272 transitions, 4816 flow [2021-03-25 09:01:06,353 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 272 transitions, 4816 flow [2021-03-25 09:01:06,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 272 transitions, 4816 flow [2021-03-25 09:01:06,434 INFO L129 PetriNetUnfolder]: 237/648 cut-off events. [2021-03-25 09:01:06,434 INFO L130 PetriNetUnfolder]: For 47424/47442 co-relation queries the response was YES. [2021-03-25 09:01:06,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8164 conditions, 648 events. 237/648 cut-off events. For 47424/47442 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4519 event pairs, 8 based on Foata normal form. 9/655 useless extension candidates. Maximal degree in co-relation 8011. Up to 326 conditions per place. [2021-03-25 09:01:06,442 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 09:01:06,451 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:06,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:06,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-03-25 09:01:06,451 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 272 transitions, 4816 flow [2021-03-25 09:01:06,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:06,451 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:06,451 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:06,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-03-25 09:01:06,451 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash 542500454, now seen corresponding path program 1 times [2021-03-25 09:01:06,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:06,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880438521] [2021-03-25 09:01:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:06,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:06,484 INFO L142 QuantifierPusher]: treesize reduction 46, result has 31.3 percent of original size [2021-03-25 09:01:06,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:06,493 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-25 09:01:06,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:06,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:06,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:06,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880438521] [2021-03-25 09:01:06,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893191068] [2021-03-25 09:01:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:06,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:01:06,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:06,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:06,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:06,563 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-25 09:01:06,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:06,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:06,602 INFO L142 QuantifierPusher]: treesize reduction 65, result has 40.4 percent of original size [2021-03-25 09:01:06,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:06,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:06,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:06,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:06,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,605 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:06,606 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:06,606 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:06,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:06,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:06,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-25 09:01:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-25 09:01:06,634 INFO L142 QuantifierPusher]: treesize reduction 158, result has 25.8 percent of original size [2021-03-25 09:01:06,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:06,662 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-25 09:01:06,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:06,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:06,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:06,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:01:06,665 INFO L142 QuantifierPusher]: treesize reduction 183, result has 20.8 percent of original size [2021-03-25 09:01:06,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:06,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:06,667 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:06,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:06,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:06,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:06,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736411946] [2021-03-25 09:01:06,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:06,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:06,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:06,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:06,672 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 86 [2021-03-25 09:01:06,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 272 transitions, 4816 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:06,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:06,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 86 [2021-03-25 09:01:06,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:07,087 INFO L129 PetriNetUnfolder]: 239/654 cut-off events. [2021-03-25 09:01:07,087 INFO L130 PetriNetUnfolder]: For 49235/49273 co-relation queries the response was YES. [2021-03-25 09:01:07,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8708 conditions, 654 events. 239/654 cut-off events. For 49235/49273 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4484 event pairs, 9 based on Foata normal form. 3/657 useless extension candidates. Maximal degree in co-relation 8554. Up to 330 conditions per place. [2021-03-25 09:01:07,094 INFO L132 encePairwiseOnDemand]: 67/86 looper letters, 202 selfloop transitions, 56 changer transitions 0/288 dead transitions. [2021-03-25 09:01:07,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 288 transitions, 6132 flow [2021-03-25 09:01:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:01:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:01:07,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 242 transitions. [2021-03-25 09:01:07,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23449612403100775 [2021-03-25 09:01:07,095 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 242 transitions. [2021-03-25 09:01:07,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 242 transitions. [2021-03-25 09:01:07,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:07,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 242 transitions. [2021-03-25 09:01:07,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 20.166666666666668) internal successors, (242), 12 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:07,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:07,096 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 86.0) internal successors, (1118), 13 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:07,096 INFO L185 Difference]: Start difference. First operand has 301 places, 272 transitions, 4816 flow. Second operand 12 states and 242 transitions. [2021-03-25 09:01:07,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 288 transitions, 6132 flow [2021-03-25 09:01:07,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 288 transitions, 6081 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 09:01:07,284 INFO L241 Difference]: Finished difference. Result has 309 places, 273 transitions, 4924 flow [2021-03-25 09:01:07,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=4765, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4924, PETRI_PLACES=309, PETRI_TRANSITIONS=273} [2021-03-25 09:01:07,284 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 293 predicate places. [2021-03-25 09:01:07,285 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:07,285 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 273 transitions, 4924 flow [2021-03-25 09:01:07,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 273 transitions, 4924 flow [2021-03-25 09:01:07,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 309 places, 273 transitions, 4924 flow [2021-03-25 09:01:07,368 INFO L129 PetriNetUnfolder]: 239/653 cut-off events. [2021-03-25 09:01:07,369 INFO L130 PetriNetUnfolder]: For 49958/49973 co-relation queries the response was YES. [2021-03-25 09:01:07,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8408 conditions, 653 events. 239/653 cut-off events. For 49958/49973 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4545 event pairs, 8 based on Foata normal form. 11/662 useless extension candidates. Maximal degree in co-relation 8253. Up to 330 conditions per place. [2021-03-25 09:01:07,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 09:01:07,556 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:07,556 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:07,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 272 [2021-03-25 09:01:07,556 INFO L480 AbstractCegarLoop]: Abstraction has has 309 places, 273 transitions, 4959 flow [2021-03-25 09:01:07,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:07,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:07,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:07,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable281 [2021-03-25 09:01:07,760 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:07,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:07,760 INFO L82 PathProgramCache]: Analyzing trace with hash 129839127, now seen corresponding path program 1 times [2021-03-25 09:01:07,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:07,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134632708] [2021-03-25 09:01:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:07,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:07,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:07,793 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-03-25 09:01:07,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:01:07,817 INFO L142 QuantifierPusher]: treesize reduction 172, result has 30.9 percent of original size [2021-03-25 09:01:07,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:07,884 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-25 09:01:07,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:07,911 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:07,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:07,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134632708] [2021-03-25 09:01:07,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189875369] [2021-03-25 09:01:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:07,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:01:07,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:07,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:07,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:07,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:07,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:07,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:07,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:07,982 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-25 09:01:07,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:07,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:07,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:08,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:08,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:08,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:08,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:08,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:01:08,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-03-25 09:01:08,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:01:08,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 794 [2021-03-25 09:01:08,043 INFO L142 QuantifierPusher]: treesize reduction 582, result has 27.2 percent of original size [2021-03-25 09:01:08,044 INFO L147 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size 204 [2021-03-25 09:01:08,045 INFO L142 QuantifierPusher]: treesize reduction 8, result has 96.2 percent of original size [2021-03-25 09:01:08,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-25 09:01:08,260 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2021-03-25 09:01:08,261 INFO L142 QuantifierPusher]: treesize reduction 21, result has 90.0 percent of original size [2021-03-25 09:01:08,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:01:08,263 INFO L147 QuantifierPusher]: treesize reduction 40, result has 78.9 percent of original size 150 [2021-03-25 09:01:08,264 INFO L142 QuantifierPusher]: treesize reduction 40, result has 79.1 percent of original size [2021-03-25 09:01:08,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:08,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-25 09:01:08,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:08,268 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,269 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:01:08,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:01:08,327 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-25 09:01:08,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:08,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:01:08,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:01:08,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-25 09:01:08,334 INFO L142 QuantifierPusher]: treesize reduction 107, result has 65.1 percent of original size [2021-03-25 09:01:08,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,345 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:08,345 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:01:08,346 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,347 INFO L142 QuantifierPusher]: treesize reduction 188, result has 47.3 percent of original size [2021-03-25 09:01:08,348 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:08,348 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,350 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.6 percent of original size [2021-03-25 09:01:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:08,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:08,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:08,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:01:08,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:01:08,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:01:08,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:01:08,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,393 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:01:08,393 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:08,393 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,394 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-25 09:01:08,395 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-25 09:01:08,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:08,427 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:01:08,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:08,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:08,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:08,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:08,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:08,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,434 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:01:08,434 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:08,434 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,437 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:01:08,437 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:08,438 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:08,439 INFO L142 QuantifierPusher]: treesize reduction 103, result has 22.0 percent of original size [2021-03-25 09:01:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:08,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:08,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:08,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:08,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045883646] [2021-03-25 09:01:08,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:08,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:08,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:08,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:08,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 87 [2021-03-25 09:01:08,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 273 transitions, 4959 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:08,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:08,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 87 [2021-03-25 09:01:08,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:08,644 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-25 09:01:08,876 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-03-25 09:01:09,027 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2021-03-25 09:01:09,244 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-25 09:01:10,048 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2021-03-25 09:01:10,126 INFO L129 PetriNetUnfolder]: 255/708 cut-off events. [2021-03-25 09:01:10,126 INFO L130 PetriNetUnfolder]: For 57292/57324 co-relation queries the response was YES. [2021-03-25 09:01:10,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10037 conditions, 708 events. 255/708 cut-off events. For 57292/57324 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5036 event pairs, 13 based on Foata normal form. 12/718 useless extension candidates. Maximal degree in co-relation 9877. Up to 517 conditions per place. [2021-03-25 09:01:10,134 INFO L132 encePairwiseOnDemand]: 70/87 looper letters, 246 selfloop transitions, 51 changer transitions 5/306 dead transitions. [2021-03-25 09:01:10,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 306 transitions, 6970 flow [2021-03-25 09:01:10,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:01:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:01:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 275 transitions. [2021-03-25 09:01:10,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1756066411238825 [2021-03-25 09:01:10,135 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 275 transitions. [2021-03-25 09:01:10,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 275 transitions. [2021-03-25 09:01:10,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:10,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 275 transitions. [2021-03-25 09:01:10,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.277777777777779) internal successors, (275), 18 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:10,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:10,136 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 87.0) internal successors, (1653), 19 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:10,136 INFO L185 Difference]: Start difference. First operand has 309 places, 273 transitions, 4959 flow. Second operand 18 states and 275 transitions. [2021-03-25 09:01:10,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 306 transitions, 6970 flow [2021-03-25 09:01:10,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 306 transitions, 6793 flow, removed 36 selfloop flow, removed 9 redundant places. [2021-03-25 09:01:10,367 INFO L241 Difference]: Finished difference. Result has 324 places, 292 transitions, 5771 flow [2021-03-25 09:01:10,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=4785, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5771, PETRI_PLACES=324, PETRI_TRANSITIONS=292} [2021-03-25 09:01:10,368 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 308 predicate places. [2021-03-25 09:01:10,368 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:10,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 292 transitions, 5771 flow [2021-03-25 09:01:10,368 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 292 transitions, 5771 flow [2021-03-25 09:01:10,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 322 places, 292 transitions, 5771 flow [2021-03-25 09:01:10,462 INFO L129 PetriNetUnfolder]: 250/694 cut-off events. [2021-03-25 09:01:10,462 INFO L130 PetriNetUnfolder]: For 58949/58964 co-relation queries the response was YES. [2021-03-25 09:01:10,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9439 conditions, 694 events. 250/694 cut-off events. For 58949/58964 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4964 event pairs, 9 based on Foata normal form. 11/703 useless extension candidates. Maximal degree in co-relation 9282. Up to 360 conditions per place. [2021-03-25 09:01:10,471 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-25 09:01:11,494 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:11,494 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 09:01:11,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1126 [2021-03-25 09:01:11,495 INFO L480 AbstractCegarLoop]: Abstraction has has 322 places, 292 transitions, 5853 flow [2021-03-25 09:01:11,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:11,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:11,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:11,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:11,695 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:11,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1416051607, now seen corresponding path program 1 times [2021-03-25 09:01:11,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:11,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221715675] [2021-03-25 09:01:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:11,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,709 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-25 09:01:11,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:11,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:11,722 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:01:11,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:11,733 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-25 09:01:11,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:01:11,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:11,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221715675] [2021-03-25 09:01:11,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761019314] [2021-03-25 09:01:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:11,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:11,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:11,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:11,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:11,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:11,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,799 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:11,799 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,800 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:11,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:11,812 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:01:11,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:11,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:11,814 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-25 09:01:11,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:11,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:11,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:11,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:11,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:11,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:11,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:11,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:11,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 09:01:11,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,867 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:11,868 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,868 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,868 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:11,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:11,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:01:11,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:01:11,903 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.7 percent of original size [2021-03-25 09:01:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 09:01:11,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:11,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 09:01:11,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,907 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:11,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,909 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-25 09:01:11,910 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:01:11,910 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:01:11,911 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:11,911 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,911 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,911 INFO L142 QuantifierPusher]: treesize reduction 74, result has 20.4 percent of original size [2021-03-25 09:01:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:11,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:11,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:11,930 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-03-25 09:01:11,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:11,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:11,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:11,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:11,932 INFO L142 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-03-25 09:01:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:11,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:11,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:11,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:01:11,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403108782] [2021-03-25 09:01:11,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:01:11,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:11,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:01:11,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:01:11,938 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 94 [2021-03-25 09:01:11,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 292 transitions, 5853 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:11,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:11,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 94 [2021-03-25 09:01:11,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:12,416 INFO L129 PetriNetUnfolder]: 253/704 cut-off events. [2021-03-25 09:01:12,416 INFO L130 PetriNetUnfolder]: For 61115/61147 co-relation queries the response was YES. [2021-03-25 09:01:12,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10228 conditions, 704 events. 253/704 cut-off events. For 61115/61147 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4990 event pairs, 5 based on Foata normal form. 9/707 useless extension candidates. Maximal degree in co-relation 10066. Up to 396 conditions per place. [2021-03-25 09:01:12,423 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 254 selfloop transitions, 56 changer transitions 3/319 dead transitions. [2021-03-25 09:01:12,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 319 transitions, 7906 flow [2021-03-25 09:01:12,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:01:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:01:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 207 transitions. [2021-03-25 09:01:12,425 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20019342359767892 [2021-03-25 09:01:12,425 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 207 transitions. [2021-03-25 09:01:12,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 207 transitions. [2021-03-25 09:01:12,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:12,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 207 transitions. [2021-03-25 09:01:12,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 18.818181818181817) internal successors, (207), 11 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:12,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:12,426 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:12,426 INFO L185 Difference]: Start difference. First operand has 322 places, 292 transitions, 5853 flow. Second operand 11 states and 207 transitions. [2021-03-25 09:01:12,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 319 transitions, 7906 flow [2021-03-25 09:01:12,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 319 transitions, 7095 flow, removed 387 selfloop flow, removed 8 redundant places. [2021-03-25 09:01:12,679 INFO L241 Difference]: Finished difference. Result has 322 places, 289 transitions, 5232 flow [2021-03-25 09:01:12,679 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5136, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5232, PETRI_PLACES=322, PETRI_TRANSITIONS=289} [2021-03-25 09:01:12,680 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 306 predicate places. [2021-03-25 09:01:12,680 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:12,680 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 322 places, 289 transitions, 5232 flow [2021-03-25 09:01:12,680 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 322 places, 289 transitions, 5232 flow [2021-03-25 09:01:12,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 320 places, 289 transitions, 5232 flow [2021-03-25 09:01:12,808 INFO L129 PetriNetUnfolder]: 250/695 cut-off events. [2021-03-25 09:01:12,808 INFO L130 PetriNetUnfolder]: For 57663/57688 co-relation queries the response was YES. [2021-03-25 09:01:12,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9046 conditions, 695 events. 250/695 cut-off events. For 57663/57688 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4989 event pairs, 12 based on Foata normal form. 9/701 useless extension candidates. Maximal degree in co-relation 8892. Up to 343 conditions per place. [2021-03-25 09:01:12,823 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 09:01:12,839 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:12,839 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:12,839 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-25 09:01:12,839 INFO L480 AbstractCegarLoop]: Abstraction has has 320 places, 289 transitions, 5232 flow [2021-03-25 09:01:12,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:12,839 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:12,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:13,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable290 [2021-03-25 09:01:13,061 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1890952528, now seen corresponding path program 1 times [2021-03-25 09:01:13,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:13,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909077125] [2021-03-25 09:01:13,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:13,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,073 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-25 09:01:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:01:13,081 INFO L142 QuantifierPusher]: treesize reduction 204, result has 25.5 percent of original size [2021-03-25 09:01:13,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:01:13,119 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-25 09:01:13,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:13,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:13,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:13,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909077125] [2021-03-25 09:01:13,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701733738] [2021-03-25 09:01:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:13,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:13,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:13,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:13,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:13,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:13,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:13,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,185 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:13,186 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:13,186 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:13,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:13,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,203 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:13,203 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:13,204 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:13,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:13,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:13,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:13,225 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-25 09:01:13,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:13,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:13,226 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-25 09:01:13,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:13,245 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-25 09:01:13,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:13,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:13,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:13,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:01:13,247 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-25 09:01:13,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:13,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:13,249 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:13,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:13,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:13,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:13,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:13,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731429277] [2021-03-25 09:01:13,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:13,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:13,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:13,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:13,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 94 [2021-03-25 09:01:13,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 289 transitions, 5232 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:13,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:13,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 94 [2021-03-25 09:01:13,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:13,705 INFO L129 PetriNetUnfolder]: 255/700 cut-off events. [2021-03-25 09:01:13,705 INFO L130 PetriNetUnfolder]: For 60076/60084 co-relation queries the response was YES. [2021-03-25 09:01:13,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9745 conditions, 700 events. 255/700 cut-off events. For 60076/60084 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4929 event pairs, 12 based on Foata normal form. 4/701 useless extension candidates. Maximal degree in co-relation 9583. Up to 489 conditions per place. [2021-03-25 09:01:13,713 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 265 selfloop transitions, 35 changer transitions 1/307 dead transitions. [2021-03-25 09:01:13,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 307 transitions, 6512 flow [2021-03-25 09:01:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:01:13,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:01:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 231 transitions. [2021-03-25 09:01:13,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1890343698854337 [2021-03-25 09:01:13,714 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 231 transitions. [2021-03-25 09:01:13,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 231 transitions. [2021-03-25 09:01:13,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:13,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 231 transitions. [2021-03-25 09:01:13,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:13,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:13,716 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:13,716 INFO L185 Difference]: Start difference. First operand has 320 places, 289 transitions, 5232 flow. Second operand 13 states and 231 transitions. [2021-03-25 09:01:13,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 307 transitions, 6512 flow [2021-03-25 09:01:13,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 307 transitions, 6403 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:13,945 INFO L241 Difference]: Finished difference. Result has 328 places, 292 transitions, 5346 flow [2021-03-25 09:01:13,945 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5123, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5346, PETRI_PLACES=328, PETRI_TRANSITIONS=292} [2021-03-25 09:01:13,945 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-25 09:01:13,945 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:13,946 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 292 transitions, 5346 flow [2021-03-25 09:01:13,946 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 292 transitions, 5346 flow [2021-03-25 09:01:13,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 328 places, 292 transitions, 5346 flow [2021-03-25 09:01:14,050 INFO L129 PetriNetUnfolder]: 252/696 cut-off events. [2021-03-25 09:01:14,050 INFO L130 PetriNetUnfolder]: For 57863/57888 co-relation queries the response was YES. [2021-03-25 09:01:14,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9085 conditions, 696 events. 252/696 cut-off events. For 57863/57888 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4933 event pairs, 8 based on Foata normal form. 9/702 useless extension candidates. Maximal degree in co-relation 8887. Up to 345 conditions per place. [2021-03-25 09:01:14,059 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:14,070 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:14,070 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:14,070 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 09:01:14,070 INFO L480 AbstractCegarLoop]: Abstraction has has 328 places, 292 transitions, 5346 flow [2021-03-25 09:01:14,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:14,070 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:14,070 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:14,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:14,292 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:14,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:14,292 INFO L82 PathProgramCache]: Analyzing trace with hash 442082434, now seen corresponding path program 1 times [2021-03-25 09:01:14,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:14,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866445981] [2021-03-25 09:01:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:14,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:14,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:14,339 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:01:14,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:01:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:14,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:14,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866445981] [2021-03-25 09:01:14,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956534083] [2021-03-25 09:01:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:14,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 09:01:14,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:14,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:14,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:14,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:14,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,413 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:14,413 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,414 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:14,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:01:14,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-25 09:01:14,432 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.4 percent of original size [2021-03-25 09:01:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:14,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:14,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.1 percent of original size [2021-03-25 09:01:14,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:14,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:14,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:14,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,459 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:14,459 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,460 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:14,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:14,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:14,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:14,487 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-25 09:01:14,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:14,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:14,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:14,490 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-25 09:01:14,490 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:14,491 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:14,491 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-25 09:01:14,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:14,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:14,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:14,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:14,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:14,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:14,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:14,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071206112] [2021-03-25 09:01:14,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:14,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:14,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:14,500 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 94 [2021-03-25 09:01:14,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 292 transitions, 5346 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:14,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:14,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 94 [2021-03-25 09:01:14,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:14,840 INFO L129 PetriNetUnfolder]: 250/686 cut-off events. [2021-03-25 09:01:14,840 INFO L130 PetriNetUnfolder]: For 58120/58158 co-relation queries the response was YES. [2021-03-25 09:01:14,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9491 conditions, 686 events. 250/686 cut-off events. For 58120/58158 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4780 event pairs, 12 based on Foata normal form. 9/695 useless extension candidates. Maximal degree in co-relation 9329. Up to 420 conditions per place. [2021-03-25 09:01:14,851 INFO L132 encePairwiseOnDemand]: 78/94 looper letters, 240 selfloop transitions, 23 changer transitions 3/296 dead transitions. [2021-03-25 09:01:14,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 296 transitions, 6024 flow [2021-03-25 09:01:14,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:01:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:01:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2021-03-25 09:01:14,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24772036474164133 [2021-03-25 09:01:14,852 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 163 transitions. [2021-03-25 09:01:14,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 163 transitions. [2021-03-25 09:01:14,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:14,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 163 transitions. [2021-03-25 09:01:14,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:14,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:14,854 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 94.0) internal successors, (752), 8 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:14,854 INFO L185 Difference]: Start difference. First operand has 328 places, 292 transitions, 5346 flow. Second operand 7 states and 163 transitions. [2021-03-25 09:01:14,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 296 transitions, 6024 flow [2021-03-25 09:01:15,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 296 transitions, 5820 flow, removed 56 selfloop flow, removed 8 redundant places. [2021-03-25 09:01:15,183 INFO L241 Difference]: Finished difference. Result has 328 places, 290 transitions, 5148 flow [2021-03-25 09:01:15,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5142, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5148, PETRI_PLACES=328, PETRI_TRANSITIONS=290} [2021-03-25 09:01:15,184 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-25 09:01:15,184 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:15,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 290 transitions, 5148 flow [2021-03-25 09:01:15,184 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 290 transitions, 5148 flow [2021-03-25 09:01:15,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 323 places, 290 transitions, 5148 flow [2021-03-25 09:01:15,296 INFO L129 PetriNetUnfolder]: 250/684 cut-off events. [2021-03-25 09:01:15,296 INFO L130 PetriNetUnfolder]: For 57155/57173 co-relation queries the response was YES. [2021-03-25 09:01:15,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8908 conditions, 684 events. 250/684 cut-off events. For 57155/57173 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4840 event pairs, 10 based on Foata normal form. 9/690 useless extension candidates. Maximal degree in co-relation 8764. Up to 341 conditions per place. [2021-03-25 09:01:15,305 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:15,518 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:15,518 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:15,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 334 [2021-03-25 09:01:15,519 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 290 transitions, 5167 flow [2021-03-25 09:01:15,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:15,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:15,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:15,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable298 [2021-03-25 09:01:15,719 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:15,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1925751299, now seen corresponding path program 1 times [2021-03-25 09:01:15,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:15,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846173104] [2021-03-25 09:01:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:15,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:15,736 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:01:15,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:15,741 INFO L142 QuantifierPusher]: treesize reduction 34, result has 60.9 percent of original size [2021-03-25 09:01:15,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:15,775 INFO L142 QuantifierPusher]: treesize reduction 60, result has 53.5 percent of original size [2021-03-25 09:01:15,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-25 09:01:15,814 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:15,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:15,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:15,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846173104] [2021-03-25 09:01:15,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516864184] [2021-03-25 09:01:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:15,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:01:15,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:15,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:15,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:15,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:15,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,866 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:15,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,872 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,873 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,873 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:15,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:15,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:15,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:15,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,893 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,893 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,894 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:15,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:15,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:15,917 INFO L142 QuantifierPusher]: treesize reduction 10, result has 88.1 percent of original size [2021-03-25 09:01:15,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:15,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:01:15,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:01:15,921 INFO L142 QuantifierPusher]: treesize reduction 499, result has 25.9 percent of original size [2021-03-25 09:01:15,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,923 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-25 09:01:15,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,923 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.0 percent of original size [2021-03-25 09:01:15,923 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-03-25 09:01:15,924 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,925 INFO L142 QuantifierPusher]: treesize reduction 180, result has 37.1 percent of original size [2021-03-25 09:01:15,925 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,925 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,926 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 09:01:15,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 09:01:15,927 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,927 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,928 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:01:15,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:01:15,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 09:01:15,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 09:01:15,930 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:15,930 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,931 INFO L142 QuantifierPusher]: treesize reduction 179, result has 18.6 percent of original size [2021-03-25 09:01:15,931 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,932 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,932 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,932 INFO L142 QuantifierPusher]: treesize reduction 12, result has 40.0 percent of original size [2021-03-25 09:01:15,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:15,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:15,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:15,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:15,956 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.7 percent of original size [2021-03-25 09:01:15,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:15,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:15,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-25 09:01:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-03-25 09:01:15,960 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.2 percent of original size [2021-03-25 09:01:15,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,961 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:15,962 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:15,962 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,963 INFO L142 QuantifierPusher]: treesize reduction 175, result has 29.1 percent of original size [2021-03-25 09:01:15,964 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:15,964 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,965 INFO L142 QuantifierPusher]: treesize reduction 34, result has 26.1 percent of original size [2021-03-25 09:01:15,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:15,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:15,988 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:01:15,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:15,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:15,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:15,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:15,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:15,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,993 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:01:15,993 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,994 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,995 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:01:15,995 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:15,995 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:15,996 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:01:15,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:15,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:15,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:15,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:16,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:16,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:16,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-25 09:01:16,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273357057] [2021-03-25 09:01:16,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:01:16,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:16,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:01:16,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:01:16,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 95 [2021-03-25 09:01:16,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 290 transitions, 5167 flow. Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:16,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:16,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 95 [2021-03-25 09:01:16,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:16,479 INFO L129 PetriNetUnfolder]: 252/683 cut-off events. [2021-03-25 09:01:16,479 INFO L130 PetriNetUnfolder]: For 58707/58715 co-relation queries the response was YES. [2021-03-25 09:01:16,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9521 conditions, 683 events. 252/683 cut-off events. For 58707/58715 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4725 event pairs, 11 based on Foata normal form. 2/682 useless extension candidates. Maximal degree in co-relation 9372. Up to 530 conditions per place. [2021-03-25 09:01:16,487 INFO L132 encePairwiseOnDemand]: 78/95 looper letters, 264 selfloop transitions, 26 changer transitions 3/297 dead transitions. [2021-03-25 09:01:16,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 297 transitions, 6019 flow [2021-03-25 09:01:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:01:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:01:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 158 transitions. [2021-03-25 09:01:16,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1847953216374269 [2021-03-25 09:01:16,488 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 158 transitions. [2021-03-25 09:01:16,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 158 transitions. [2021-03-25 09:01:16,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:16,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 158 transitions. [2021-03-25 09:01:16,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 17.555555555555557) internal successors, (158), 9 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:16,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:16,489 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 95.0) internal successors, (950), 10 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:16,489 INFO L185 Difference]: Start difference. First operand has 323 places, 290 transitions, 5167 flow. Second operand 9 states and 158 transitions. [2021-03-25 09:01:16,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 297 transitions, 6019 flow [2021-03-25 09:01:16,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 297 transitions, 5942 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-03-25 09:01:16,765 INFO L241 Difference]: Finished difference. Result has 328 places, 288 transitions, 5097 flow [2021-03-25 09:01:16,765 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=5096, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5097, PETRI_PLACES=328, PETRI_TRANSITIONS=288} [2021-03-25 09:01:16,766 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 312 predicate places. [2021-03-25 09:01:16,766 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:16,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 288 transitions, 5097 flow [2021-03-25 09:01:16,766 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 288 transitions, 5097 flow [2021-03-25 09:01:16,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 288 transitions, 5097 flow [2021-03-25 09:01:16,883 INFO L129 PetriNetUnfolder]: 249/673 cut-off events. [2021-03-25 09:01:16,883 INFO L130 PetriNetUnfolder]: For 55992/56007 co-relation queries the response was YES. [2021-03-25 09:01:16,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8780 conditions, 673 events. 249/673 cut-off events. For 55992/56007 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4668 event pairs, 9 based on Foata normal form. 11/681 useless extension candidates. Maximal degree in co-relation 8621. Up to 337 conditions per place. [2021-03-25 09:01:16,891 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 09:01:16,902 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:16,902 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:16,902 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 09:01:16,902 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 288 transitions, 5097 flow [2021-03-25 09:01:16,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:16,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:16,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:17,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable302 [2021-03-25 09:01:17,103 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:17,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:17,103 INFO L82 PathProgramCache]: Analyzing trace with hash -2030829394, now seen corresponding path program 1 times [2021-03-25 09:01:17,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:17,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851013778] [2021-03-25 09:01:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:17,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:17,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:17,123 INFO L142 QuantifierPusher]: treesize reduction 152, result has 17.8 percent of original size [2021-03-25 09:01:17,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:01:17,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 09:01:17,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:17,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:17,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851013778] [2021-03-25 09:01:17,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:01:17,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:01:17,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633454496] [2021-03-25 09:01:17,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:01:17,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:17,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:01:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:01:17,153 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 95 [2021-03-25 09:01:17,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 288 transitions, 5097 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:17,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 95 [2021-03-25 09:01:17,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:17,456 INFO L129 PetriNetUnfolder]: 272/718 cut-off events. [2021-03-25 09:01:17,456 INFO L130 PetriNetUnfolder]: For 64966/64998 co-relation queries the response was YES. [2021-03-25 09:01:17,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10252 conditions, 718 events. 272/718 cut-off events. For 64966/64998 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4964 event pairs, 3 based on Foata normal form. 10/726 useless extension candidates. Maximal degree in co-relation 10045. Up to 375 conditions per place. [2021-03-25 09:01:17,464 INFO L132 encePairwiseOnDemand]: 59/95 looper letters, 136 selfloop transitions, 177 changer transitions 3/322 dead transitions. [2021-03-25 09:01:17,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 322 transitions, 7040 flow [2021-03-25 09:01:17,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:01:17,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:01:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2021-03-25 09:01:17,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25087719298245614 [2021-03-25 09:01:17,465 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 143 transitions. [2021-03-25 09:01:17,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 143 transitions. [2021-03-25 09:01:17,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:17,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 143 transitions. [2021-03-25 09:01:17,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,466 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,466 INFO L185 Difference]: Start difference. First operand has 325 places, 288 transitions, 5097 flow. Second operand 6 states and 143 transitions. [2021-03-25 09:01:17,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 322 transitions, 7040 flow [2021-03-25 09:01:17,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 322 transitions, 6981 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:17,699 INFO L241 Difference]: Finished difference. Result has 327 places, 306 transitions, 6403 flow [2021-03-25 09:01:17,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=5027, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6403, PETRI_PLACES=327, PETRI_TRANSITIONS=306} [2021-03-25 09:01:17,699 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 311 predicate places. [2021-03-25 09:01:17,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:17,700 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 306 transitions, 6403 flow [2021-03-25 09:01:17,700 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 306 transitions, 6403 flow [2021-03-25 09:01:17,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 327 places, 306 transitions, 6403 flow [2021-03-25 09:01:17,807 INFO L129 PetriNetUnfolder]: 269/707 cut-off events. [2021-03-25 09:01:17,807 INFO L130 PetriNetUnfolder]: For 67920/67936 co-relation queries the response was YES. [2021-03-25 09:01:17,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10173 conditions, 707 events. 269/707 cut-off events. For 67920/67936 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 4928 event pairs, 9 based on Foata normal form. 7/712 useless extension candidates. Maximal degree in co-relation 10010. Up to 372 conditions per place. [2021-03-25 09:01:17,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:17,828 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:17,828 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:17,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-25 09:01:17,829 INFO L480 AbstractCegarLoop]: Abstraction has has 327 places, 306 transitions, 6403 flow [2021-03-25 09:01:17,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:17,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:17,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-03-25 09:01:17,829 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:17,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1050716861, now seen corresponding path program 1 times [2021-03-25 09:01:17,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:17,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129332985] [2021-03-25 09:01:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:17,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:17,846 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:01:17,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:17,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:17,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:17,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:17,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129332985] [2021-03-25 09:01:17,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:01:17,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:01:17,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152951254] [2021-03-25 09:01:17,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:01:17,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:17,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:01:17,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:01:17,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 95 [2021-03-25 09:01:17,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 306 transitions, 6403 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:17,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:17,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 95 [2021-03-25 09:01:17,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:18,143 INFO L129 PetriNetUnfolder]: 274/722 cut-off events. [2021-03-25 09:01:18,143 INFO L130 PetriNetUnfolder]: For 71953/71985 co-relation queries the response was YES. [2021-03-25 09:01:18,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11059 conditions, 722 events. 274/722 cut-off events. For 71953/71985 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4987 event pairs, 17 based on Foata normal form. 2/722 useless extension candidates. Maximal degree in co-relation 10845. Up to 539 conditions per place. [2021-03-25 09:01:18,151 INFO L132 encePairwiseOnDemand]: 85/95 looper letters, 277 selfloop transitions, 32 changer transitions 0/315 dead transitions. [2021-03-25 09:01:18,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 315 transitions, 7498 flow [2021-03-25 09:01:18,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:01:18,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:01:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2021-03-25 09:01:18,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23333333333333334 [2021-03-25 09:01:18,152 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 133 transitions. [2021-03-25 09:01:18,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 133 transitions. [2021-03-25 09:01:18,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:18,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 133 transitions. [2021-03-25 09:01:18,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:18,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:18,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 95.0) internal successors, (665), 7 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:18,152 INFO L185 Difference]: Start difference. First operand has 327 places, 306 transitions, 6403 flow. Second operand 6 states and 133 transitions. [2021-03-25 09:01:18,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 315 transitions, 7498 flow [2021-03-25 09:01:18,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 315 transitions, 7325 flow, removed 84 selfloop flow, removed 2 redundant places. [2021-03-25 09:01:18,426 INFO L241 Difference]: Finished difference. Result has 331 places, 307 transitions, 6338 flow [2021-03-25 09:01:18,426 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=6234, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6338, PETRI_PLACES=331, PETRI_TRANSITIONS=307} [2021-03-25 09:01:18,426 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 315 predicate places. [2021-03-25 09:01:18,426 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:18,426 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 307 transitions, 6338 flow [2021-03-25 09:01:18,426 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 307 transitions, 6338 flow [2021-03-25 09:01:18,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 307 transitions, 6338 flow [2021-03-25 09:01:18,540 INFO L129 PetriNetUnfolder]: 271/716 cut-off events. [2021-03-25 09:01:18,540 INFO L130 PetriNetUnfolder]: For 66213/66229 co-relation queries the response was YES. [2021-03-25 09:01:18,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10191 conditions, 716 events. 271/716 cut-off events. For 66213/66229 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5033 event pairs, 9 based on Foata normal form. 7/720 useless extension candidates. Maximal degree in co-relation 10028. Up to 378 conditions per place. [2021-03-25 09:01:18,550 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:18,562 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:18,562 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:18,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-25 09:01:18,562 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 307 transitions, 6338 flow [2021-03-25 09:01:18,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:18,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:18,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:18,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-03-25 09:01:18,562 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:18,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:18,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1025671859, now seen corresponding path program 1 times [2021-03-25 09:01:18,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:18,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703654944] [2021-03-25 09:01:18,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:18,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,581 INFO L142 QuantifierPusher]: treesize reduction 88, result has 38.9 percent of original size [2021-03-25 09:01:18,582 INFO L147 QuantifierPusher]: treesize reduction 46, result has 17.9 percent of original size 10 [2021-03-25 09:01:18,594 INFO L142 QuantifierPusher]: treesize reduction 126, result has 46.8 percent of original size [2021-03-25 09:01:18,595 INFO L147 QuantifierPusher]: treesize reduction 58, result has 47.7 percent of original size 53 [2021-03-25 09:01:18,627 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.8 percent of original size [2021-03-25 09:01:18,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:18,657 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size [2021-03-25 09:01:18,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:18,672 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:18,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:18,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:18,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703654944] [2021-03-25 09:01:18,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174542066] [2021-03-25 09:01:18,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:18,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:01:18,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:18,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:18,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:18,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:18,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,751 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:18,751 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,752 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:18,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:18,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:18,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:18,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:18,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,775 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:18,775 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,775 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,776 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:18,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:18,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:18,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:18,805 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.1 percent of original size [2021-03-25 09:01:18,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:18,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:01:18,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:18,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:01:18,810 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-25 09:01:18,811 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:01:18,811 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:01:18,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:01:18,966 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-25 09:01:18,967 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-25 09:01:18,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:01:18,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:01:18,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:01:18,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-25 09:01:18,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,972 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:01:18,972 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:18,972 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,973 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:01:18,973 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:18,973 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:01:18,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,975 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:18,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,976 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,976 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-25 09:01:18,977 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:01:18,977 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-25 09:01:18,977 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:18,978 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:18,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:18,979 INFO L142 QuantifierPusher]: treesize reduction 95, result has 43.8 percent of original size [2021-03-25 09:01:18,979 INFO L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-03-25 09:01:18,980 INFO L147 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size 38 [2021-03-25 09:01:18,980 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-25 09:01:18,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:19,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:19,008 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.1 percent of original size [2021-03-25 09:01:19,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:01:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:01:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-03-25 09:01:19,011 INFO L142 QuantifierPusher]: treesize reduction 23, result has 82.3 percent of original size [2021-03-25 09:01:19,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,012 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:19,012 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:19,013 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,013 INFO L142 QuantifierPusher]: treesize reduction 99, result has 39.3 percent of original size [2021-03-25 09:01:19,014 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:19,015 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,015 INFO L142 QuantifierPusher]: treesize reduction 32, result has 25.6 percent of original size [2021-03-25 09:01:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:19,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:19,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:19,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:19,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:19,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,039 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:01:19,039 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:19,039 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,040 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:01:19,040 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:01:19,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:19,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:19,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:19,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:19,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:19,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:19,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103825172] [2021-03-25 09:01:19,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:19,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:19,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:19,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 95 [2021-03-25 09:01:19,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 307 transitions, 6338 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:19,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:19,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 95 [2021-03-25 09:01:19,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:19,687 INFO L129 PetriNetUnfolder]: 277/731 cut-off events. [2021-03-25 09:01:19,687 INFO L130 PetriNetUnfolder]: For 70464/70496 co-relation queries the response was YES. [2021-03-25 09:01:19,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11130 conditions, 731 events. 277/731 cut-off events. For 70464/70496 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5090 event pairs, 14 based on Foata normal form. 10/738 useless extension candidates. Maximal degree in co-relation 10916. Up to 571 conditions per place. [2021-03-25 09:01:19,696 INFO L132 encePairwiseOnDemand]: 78/95 looper letters, 282 selfloop transitions, 31 changer transitions 3/320 dead transitions. [2021-03-25 09:01:19,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 320 transitions, 7548 flow [2021-03-25 09:01:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:19,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 172 transitions. [2021-03-25 09:01:19,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18105263157894738 [2021-03-25 09:01:19,697 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 172 transitions. [2021-03-25 09:01:19,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 172 transitions. [2021-03-25 09:01:19,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:19,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 172 transitions. [2021-03-25 09:01:19,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.2) internal successors, (172), 10 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:19,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:19,698 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 95.0) internal successors, (1045), 11 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:19,698 INFO L185 Difference]: Start difference. First operand has 331 places, 307 transitions, 6338 flow. Second operand 10 states and 172 transitions. [2021-03-25 09:01:19,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 320 transitions, 7548 flow [2021-03-25 09:01:20,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 320 transitions, 7478 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-25 09:01:20,013 INFO L241 Difference]: Finished difference. Result has 339 places, 312 transitions, 6632 flow [2021-03-25 09:01:20,013 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=6268, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6632, PETRI_PLACES=339, PETRI_TRANSITIONS=312} [2021-03-25 09:01:20,013 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 323 predicate places. [2021-03-25 09:01:20,013 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:20,013 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 339 places, 312 transitions, 6632 flow [2021-03-25 09:01:20,013 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 339 places, 312 transitions, 6632 flow [2021-03-25 09:01:20,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 337 places, 312 transitions, 6632 flow [2021-03-25 09:01:20,129 INFO L129 PetriNetUnfolder]: 274/719 cut-off events. [2021-03-25 09:01:20,130 INFO L130 PetriNetUnfolder]: For 70129/70144 co-relation queries the response was YES. [2021-03-25 09:01:20,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10427 conditions, 719 events. 274/719 cut-off events. For 70129/70144 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 4984 event pairs, 11 based on Foata normal form. 11/727 useless extension candidates. Maximal degree in co-relation 10286. Up to 382 conditions per place. [2021-03-25 09:01:20,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:20,432 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:20,432 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:01:20,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 419 [2021-03-25 09:01:20,433 INFO L480 AbstractCegarLoop]: Abstraction has has 337 places, 312 transitions, 6656 flow [2021-03-25 09:01:20,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:20,433 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:20,433 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:20,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable316 [2021-03-25 09:01:20,633 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:20,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:20,634 INFO L82 PathProgramCache]: Analyzing trace with hash 717366085, now seen corresponding path program 2 times [2021-03-25 09:01:20,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:20,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158142870] [2021-03-25 09:01:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:20,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:20,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:20,655 INFO L142 QuantifierPusher]: treesize reduction 34, result has 60.9 percent of original size [2021-03-25 09:01:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:20,688 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.8 percent of original size [2021-03-25 09:01:20,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:01:20,754 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:01:20,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:20,772 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:20,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:20,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:20,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158142870] [2021-03-25 09:01:20,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454213651] [2021-03-25 09:01:20,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:20,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:20,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:20,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-25 09:01:20,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:20,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:20,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:20,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:20,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:20,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:20,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,832 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:20,832 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,833 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:20,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:20,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,851 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:20,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:20,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,852 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:20,852 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,853 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:20,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:20,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:20,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:20,877 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.1 percent of original size [2021-03-25 09:01:20,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:20,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:01:20,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:20,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:01:20,881 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-25 09:01:20,882 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:01:20,882 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:01:20,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:01:20,938 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.9 percent of original size [2021-03-25 09:01:20,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:20,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-03-25 09:01:20,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-03-25 09:01:20,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 234 [2021-03-25 09:01:20,943 INFO L142 QuantifierPusher]: treesize reduction 46, result has 83.7 percent of original size [2021-03-25 09:01:20,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,944 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:20,945 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:20,945 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,947 INFO L142 QuantifierPusher]: treesize reduction 274, result has 34.9 percent of original size [2021-03-25 09:01:20,947 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:01:20,947 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,948 INFO L142 QuantifierPusher]: treesize reduction 161, result has 24.4 percent of original size [2021-03-25 09:01:20,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:20,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:20,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:20,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:20,985 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:01:20,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:20,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:01:20,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:20,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:01:20,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:20,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:20,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,990 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:01:20,990 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:20,991 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,995 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:01:20,995 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 2, 1] term [2021-03-25 09:01:20,995 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:20,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:20,997 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-03-25 09:01:20,997 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-25 09:01:20,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:21,020 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:01:21,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:21,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:21,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:21,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:21,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,022 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:21,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:21,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:21,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:21,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:21,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,025 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:01:21,025 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:21,025 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,026 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:01:21,026 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:21,026 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:21,027 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-25 09:01:21,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:21,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:21,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:21,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:21,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611921233] [2021-03-25 09:01:21,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:21,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:21,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:21,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:21,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 97 [2021-03-25 09:01:21,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 312 transitions, 6656 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:21,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:21,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 97 [2021-03-25 09:01:21,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:21,654 INFO L129 PetriNetUnfolder]: 278/738 cut-off events. [2021-03-25 09:01:21,654 INFO L130 PetriNetUnfolder]: For 75011/75019 co-relation queries the response was YES. [2021-03-25 09:01:21,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11436 conditions, 738 events. 278/738 cut-off events. For 75011/75019 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5160 event pairs, 12 based on Foata normal form. 4/739 useless extension candidates. Maximal degree in co-relation 11293. Up to 568 conditions per place. [2021-03-25 09:01:21,663 INFO L132 encePairwiseOnDemand]: 78/97 looper letters, 284 selfloop transitions, 33 changer transitions 4/325 dead transitions. [2021-03-25 09:01:21,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 325 transitions, 7910 flow [2021-03-25 09:01:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 178 transitions. [2021-03-25 09:01:21,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18350515463917524 [2021-03-25 09:01:21,664 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 178 transitions. [2021-03-25 09:01:21,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 178 transitions. [2021-03-25 09:01:21,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:21,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 178 transitions. [2021-03-25 09:01:21,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.8) internal successors, (178), 10 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:21,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:21,666 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:21,666 INFO L185 Difference]: Start difference. First operand has 337 places, 312 transitions, 6656 flow. Second operand 10 states and 178 transitions. [2021-03-25 09:01:21,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 325 transitions, 7910 flow [2021-03-25 09:01:22,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 325 transitions, 7651 flow, removed 114 selfloop flow, removed 5 redundant places. [2021-03-25 09:01:22,057 INFO L241 Difference]: Finished difference. Result has 344 places, 314 transitions, 6731 flow [2021-03-25 09:01:22,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=6359, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6731, PETRI_PLACES=344, PETRI_TRANSITIONS=314} [2021-03-25 09:01:22,058 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 328 predicate places. [2021-03-25 09:01:22,058 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:22,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 314 transitions, 6731 flow [2021-03-25 09:01:22,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 314 transitions, 6731 flow [2021-03-25 09:01:22,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 314 transitions, 6731 flow [2021-03-25 09:01:22,229 INFO L129 PetriNetUnfolder]: 274/726 cut-off events. [2021-03-25 09:01:22,229 INFO L130 PetriNetUnfolder]: For 74170/74185 co-relation queries the response was YES. [2021-03-25 09:01:22,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10691 conditions, 726 events. 274/726 cut-off events. For 74170/74185 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5145 event pairs, 9 based on Foata normal form. 11/734 useless extension candidates. Maximal degree in co-relation 10521. Up to 384 conditions per place. [2021-03-25 09:01:22,249 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:01:22,266 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:22,267 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:22,267 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-03-25 09:01:22,267 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 314 transitions, 6731 flow [2021-03-25 09:01:22,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:22,267 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:22,267 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:22,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable326 [2021-03-25 09:01:22,472 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:22,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1415464899, now seen corresponding path program 2 times [2021-03-25 09:01:22,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:22,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707216223] [2021-03-25 09:01:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:22,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:22,492 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-25 09:01:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:22,497 INFO L142 QuantifierPusher]: treesize reduction 133, result has 25.7 percent of original size [2021-03-25 09:01:22,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:01:22,533 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-25 09:01:22,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:22,558 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:01:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:22,577 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:22,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:22,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:22,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707216223] [2021-03-25 09:01:22,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313608745] [2021-03-25 09:01:22,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:22,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:22,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:22,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-25 09:01:22,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:22,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:22,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:22,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:22,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:22,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:22,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:22,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:22,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,639 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:22,644 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,644 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:22,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:22,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:22,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:22,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,665 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:22,665 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,666 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:22,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:22,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:22,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:22,692 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-25 09:01:22,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:22,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:01:22,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:01:22,696 INFO L142 QuantifierPusher]: treesize reduction 46, result has 74.9 percent of original size [2021-03-25 09:01:22,697 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:01:22,697 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:01:22,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:01:22,790 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-25 09:01:22,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:22,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-25 09:01:22,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-25 09:01:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:01:22,796 INFO L142 QuantifierPusher]: treesize reduction 214, result has 50.1 percent of original size [2021-03-25 09:01:22,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,798 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:22,798 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:22,798 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,800 INFO L142 QuantifierPusher]: treesize reduction 238, result has 36.9 percent of original size [2021-03-25 09:01:22,800 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:01:22,801 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,801 INFO L142 QuantifierPusher]: treesize reduction 82, result has 60.2 percent of original size [2021-03-25 09:01:22,803 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:22,803 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,804 INFO L142 QuantifierPusher]: treesize reduction 69, result has 61.5 percent of original size [2021-03-25 09:01:22,805 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:22,806 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,808 INFO L142 QuantifierPusher]: treesize reduction 103, result has 28.5 percent of original size [2021-03-25 09:01:22,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:01:22,811 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-25 09:01:22,811 INFO L147 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size 37 [2021-03-25 09:01:22,813 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-25 09:01:22,813 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-25 09:01:22,814 INFO L142 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size [2021-03-25 09:01:22,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:01:22,871 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:01:22,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:22,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:01:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:22,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:01:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,876 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:01:22,876 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:22,877 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,878 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:01:22,878 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:22,879 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,879 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:01:22,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:22,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:22,908 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:01:22,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:22,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:22,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:22,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:22,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:22,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,912 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:01:22,913 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:22,913 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,913 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:01:22,914 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:22,914 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:22,914 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-25 09:01:22,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:22,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:22,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:22,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:22,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064665656] [2021-03-25 09:01:22,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:22,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:22,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:22,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:22,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 97 [2021-03-25 09:01:22,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 314 transitions, 6731 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:22,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:22,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 97 [2021-03-25 09:01:22,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:23,950 INFO L129 PetriNetUnfolder]: 283/758 cut-off events. [2021-03-25 09:01:23,951 INFO L130 PetriNetUnfolder]: For 80528/80536 co-relation queries the response was YES. [2021-03-25 09:01:23,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12032 conditions, 758 events. 283/758 cut-off events. For 80528/80536 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5349 event pairs, 12 based on Foata normal form. 4/759 useless extension candidates. Maximal degree in co-relation 11809. Up to 573 conditions per place. [2021-03-25 09:01:23,960 INFO L132 encePairwiseOnDemand]: 80/97 looper letters, 290 selfloop transitions, 42 changer transitions 6/342 dead transitions. [2021-03-25 09:01:23,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 342 transitions, 8835 flow [2021-03-25 09:01:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:01:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:01:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 271 transitions. [2021-03-25 09:01:23,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1552119129438717 [2021-03-25 09:01:23,961 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 271 transitions. [2021-03-25 09:01:23,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 271 transitions. [2021-03-25 09:01:23,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:23,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 271 transitions. [2021-03-25 09:01:23,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 15.055555555555555) internal successors, (271), 18 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:23,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 97.0) internal successors, (1843), 19 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:23,964 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 97.0) internal successors, (1843), 19 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:23,964 INFO L185 Difference]: Start difference. First operand has 342 places, 314 transitions, 6731 flow. Second operand 18 states and 271 transitions. [2021-03-25 09:01:23,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 342 transitions, 8835 flow [2021-03-25 09:01:24,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 342 transitions, 8559 flow, removed 123 selfloop flow, removed 5 redundant places. [2021-03-25 09:01:24,259 INFO L241 Difference]: Finished difference. Result has 361 places, 329 transitions, 7402 flow [2021-03-25 09:01:24,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=6467, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7402, PETRI_PLACES=361, PETRI_TRANSITIONS=329} [2021-03-25 09:01:24,259 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 345 predicate places. [2021-03-25 09:01:24,260 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:24,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 361 places, 329 transitions, 7402 flow [2021-03-25 09:01:24,260 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 361 places, 329 transitions, 7402 flow [2021-03-25 09:01:24,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 360 places, 329 transitions, 7402 flow [2021-03-25 09:01:24,407 INFO L129 PetriNetUnfolder]: 278/745 cut-off events. [2021-03-25 09:01:24,407 INFO L130 PetriNetUnfolder]: For 81111/81133 co-relation queries the response was YES. [2021-03-25 09:01:24,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11328 conditions, 745 events. 278/745 cut-off events. For 81111/81133 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5289 event pairs, 12 based on Foata normal form. 7/749 useless extension candidates. Maximal degree in co-relation 11101. Up to 394 conditions per place. [2021-03-25 09:01:24,422 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 09:01:24,981 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:24,981 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:01:24,981 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 721 [2021-03-25 09:01:24,981 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 329 transitions, 7454 flow [2021-03-25 09:01:24,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:24,981 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:24,981 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:25,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:25,182 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:25,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1306983041, now seen corresponding path program 2 times [2021-03-25 09:01:25,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:25,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802242791] [2021-03-25 09:01:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:25,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:25,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:01:25,223 INFO L142 QuantifierPusher]: treesize reduction 28, result has 74.8 percent of original size [2021-03-25 09:01:25,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:01:25,264 INFO L142 QuantifierPusher]: treesize reduction 20, result has 75.6 percent of original size [2021-03-25 09:01:25,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:01:25,300 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:25,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:25,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:25,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802242791] [2021-03-25 09:01:25,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83914865] [2021-03-25 09:01:25,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:25,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:25,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:25,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-25 09:01:25,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:25,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,362 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,362 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,362 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:25,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:25,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:25,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:25,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,380 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,395 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,395 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:25,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:25,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:25,426 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.4 percent of original size [2021-03-25 09:01:25,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:01:25,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:01:25,431 INFO L142 QuantifierPusher]: treesize reduction 1086, result has 13.1 percent of original size [2021-03-25 09:01:25,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,433 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.9 percent of original size 71 [2021-03-25 09:01:25,433 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2021-03-25 09:01:25,434 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,435 INFO L142 QuantifierPusher]: treesize reduction 171, result has 38.3 percent of original size [2021-03-25 09:01:25,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,437 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 09:01:25,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:01:25,439 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,439 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-25 09:01:25,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 09:01:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 09:01:25,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-25 09:01:25,441 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,443 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,444 INFO L142 QuantifierPusher]: treesize reduction 124, result has 43.9 percent of original size [2021-03-25 09:01:25,444 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,444 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,445 INFO L142 QuantifierPusher]: treesize reduction 104, result has 12.6 percent of original size [2021-03-25 09:01:25,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 09:01:25,446 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size 25 [2021-03-25 09:01:25,446 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size 38 [2021-03-25 09:01:25,447 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.4 percent of original size [2021-03-25 09:01:25,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:25,471 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.9 percent of original size [2021-03-25 09:01:25,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:25,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:01:25,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,474 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,474 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,475 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:25,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:25,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:25,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:25,501 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.7 percent of original size [2021-03-25 09:01:25,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:25,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:25,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-25 09:01:25,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-03-25 09:01:25,505 INFO L142 QuantifierPusher]: treesize reduction 46, result has 76.5 percent of original size [2021-03-25 09:01:25,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,506 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:25,506 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:25,506 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,507 INFO L142 QuantifierPusher]: treesize reduction 179, result has 28.1 percent of original size [2021-03-25 09:01:25,507 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:25,508 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,508 INFO L142 QuantifierPusher]: treesize reduction 32, result has 25.6 percent of original size [2021-03-25 09:01:25,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:25,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:25,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:25,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:25,534 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:01:25,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:25,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:25,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:25,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:25,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:25,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,538 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:25,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,539 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:01:25,539 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,539 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,540 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:01:25,540 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:01:25,540 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:25,541 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,542 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:01:25,542 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:01:25,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:25,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:25,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:25,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:25,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036559995] [2021-03-25 09:01:25,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:25,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:25,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:25,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:25,564 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 101 [2021-03-25 09:01:25,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 329 transitions, 7454 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:25,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:25,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 101 [2021-03-25 09:01:25,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:26,218 INFO L129 PetriNetUnfolder]: 280/750 cut-off events. [2021-03-25 09:01:26,218 INFO L130 PetriNetUnfolder]: For 85013/85045 co-relation queries the response was YES. [2021-03-25 09:01:26,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12093 conditions, 750 events. 280/750 cut-off events. For 85013/85045 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5296 event pairs, 16 based on Foata normal form. 10/756 useless extension candidates. Maximal degree in co-relation 11862. Up to 591 conditions per place. [2021-03-25 09:01:26,229 INFO L132 encePairwiseOnDemand]: 85/101 looper letters, 301 selfloop transitions, 24 changer transitions 4/333 dead transitions. [2021-03-25 09:01:26,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 333 transitions, 8284 flow [2021-03-25 09:01:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2021-03-25 09:01:26,230 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1844059405940594 [2021-03-25 09:01:26,230 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 149 transitions. [2021-03-25 09:01:26,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 149 transitions. [2021-03-25 09:01:26,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:26,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 149 transitions. [2021-03-25 09:01:26,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.625) internal successors, (149), 8 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:26,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 101.0) internal successors, (909), 9 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:26,231 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 101.0) internal successors, (909), 9 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:26,231 INFO L185 Difference]: Start difference. First operand has 360 places, 329 transitions, 7454 flow. Second operand 8 states and 149 transitions. [2021-03-25 09:01:26,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 333 transitions, 8284 flow [2021-03-25 09:01:26,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 333 transitions, 7899 flow, removed 177 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:26,576 INFO L241 Difference]: Finished difference. Result has 362 places, 326 transitions, 7046 flow [2021-03-25 09:01:26,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=7073, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7046, PETRI_PLACES=362, PETRI_TRANSITIONS=326} [2021-03-25 09:01:26,576 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 346 predicate places. [2021-03-25 09:01:26,576 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:26,576 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 362 places, 326 transitions, 7046 flow [2021-03-25 09:01:26,576 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 362 places, 326 transitions, 7046 flow [2021-03-25 09:01:26,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 326 transitions, 7046 flow [2021-03-25 09:01:26,719 INFO L129 PetriNetUnfolder]: 277/737 cut-off events. [2021-03-25 09:01:26,720 INFO L130 PetriNetUnfolder]: For 81488/81503 co-relation queries the response was YES. [2021-03-25 09:01:26,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11063 conditions, 737 events. 277/737 cut-off events. For 81488/81503 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5272 event pairs, 10 based on Foata normal form. 11/744 useless extension candidates. Maximal degree in co-relation 10835. Up to 387 conditions per place. [2021-03-25 09:01:26,731 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-25 09:01:26,951 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:26,951 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:26,951 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-25 09:01:26,951 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 325 transitions, 7044 flow [2021-03-25 09:01:26,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:26,951 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:26,951 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:27,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable346 [2021-03-25 09:01:27,152 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:27,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:27,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1119013731, now seen corresponding path program 1 times [2021-03-25 09:01:27,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:27,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561036626] [2021-03-25 09:01:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:27,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,166 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-25 09:01:27,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:27,174 INFO L142 QuantifierPusher]: treesize reduction 210, result has 41.8 percent of original size [2021-03-25 09:01:27,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-03-25 09:01:27,209 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:01:27,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:27,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:27,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561036626] [2021-03-25 09:01:27,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508941336] [2021-03-25 09:01:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:27,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:27,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:27,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:27,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:27,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:27,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,272 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:27,272 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:27,273 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:27,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:27,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:27,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:27,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:27,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:27,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:27,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:27,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,287 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:27,288 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:27,288 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:27,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:27,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:27,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:27,310 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.0 percent of original size [2021-03-25 09:01:27,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:01:27,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:27,312 INFO L142 QuantifierPusher]: treesize reduction 109, result has 45.5 percent of original size [2021-03-25 09:01:27,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:27,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:27,410 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-25 09:01:27,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:27,413 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-25 09:01:27,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:27,416 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:27,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:27,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:27,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:27,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:27,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:27,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078313103] [2021-03-25 09:01:27,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:27,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:27,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:27,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:27,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-25 09:01:27,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 325 transitions, 7044 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:27,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:27,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-25 09:01:27,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:27,850 INFO L129 PetriNetUnfolder]: 286/762 cut-off events. [2021-03-25 09:01:27,850 INFO L130 PetriNetUnfolder]: For 87759/87791 co-relation queries the response was YES. [2021-03-25 09:01:27,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12254 conditions, 762 events. 286/762 cut-off events. For 87759/87791 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5388 event pairs, 15 based on Foata normal form. 10/768 useless extension candidates. Maximal degree in co-relation 12021. Up to 545 conditions per place. [2021-03-25 09:01:27,860 INFO L132 encePairwiseOnDemand]: 85/102 looper letters, 297 selfloop transitions, 35 changer transitions 0/339 dead transitions. [2021-03-25 09:01:27,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 339 transitions, 8534 flow [2021-03-25 09:01:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:01:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:01:27,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2021-03-25 09:01:27,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19825708061002179 [2021-03-25 09:01:27,861 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 182 transitions. [2021-03-25 09:01:27,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 182 transitions. [2021-03-25 09:01:27,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:27,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 182 transitions. [2021-03-25 09:01:27,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:27,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 102.0) internal successors, (1020), 10 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:27,862 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 102.0) internal successors, (1020), 10 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:27,863 INFO L185 Difference]: Start difference. First operand has 351 places, 325 transitions, 7044 flow. Second operand 9 states and 182 transitions. [2021-03-25 09:01:27,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 339 transitions, 8534 flow [2021-03-25 09:01:28,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 339 transitions, 8452 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-25 09:01:28,371 INFO L241 Difference]: Finished difference. Result has 354 places, 328 transitions, 7184 flow [2021-03-25 09:01:28,372 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6970, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7184, PETRI_PLACES=354, PETRI_TRANSITIONS=328} [2021-03-25 09:01:28,372 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 338 predicate places. [2021-03-25 09:01:28,372 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:28,372 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 354 places, 328 transitions, 7184 flow [2021-03-25 09:01:28,372 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 354 places, 328 transitions, 7184 flow [2021-03-25 09:01:28,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 354 places, 328 transitions, 7184 flow [2021-03-25 09:01:28,488 INFO L129 PetriNetUnfolder]: 283/755 cut-off events. [2021-03-25 09:01:28,489 INFO L130 PetriNetUnfolder]: For 83380/83395 co-relation queries the response was YES. [2021-03-25 09:01:28,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11457 conditions, 755 events. 283/755 cut-off events. For 83380/83395 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5418 event pairs, 11 based on Foata normal form. 11/762 useless extension candidates. Maximal degree in co-relation 11278. Up to 401 conditions per place. [2021-03-25 09:01:28,499 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 09:01:28,512 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:28,512 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:28,512 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 09:01:28,512 INFO L480 AbstractCegarLoop]: Abstraction has has 354 places, 328 transitions, 7184 flow [2021-03-25 09:01:28,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:28,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:28,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:28,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable359 [2021-03-25 09:01:28,713 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:28,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:28,713 INFO L82 PathProgramCache]: Analyzing trace with hash 604386227, now seen corresponding path program 1 times [2021-03-25 09:01:28,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:28,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427221139] [2021-03-25 09:01:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:28,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,724 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-25 09:01:28,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:28,729 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-25 09:01:28,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:28,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:28,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:28,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427221139] [2021-03-25 09:01:28,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634683268] [2021-03-25 09:01:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:28,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-25 09:01:28,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:28,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:28,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:28,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:28,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:28,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,802 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:28,803 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:28,803 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:28,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:28,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:01:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:01:28,817 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size [2021-03-25 09:01:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:28,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:28,842 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.9 percent of original size [2021-03-25 09:01:28,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:28,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:28,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:01:28,845 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-25 09:01:28,845 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:28,845 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:28,846 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-25 09:01:28,846 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:28,847 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,847 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:28,847 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-25 09:01:28,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:28,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:28,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:28,865 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:01:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:28,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:28,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:28,867 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:28,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:28,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:28,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:28,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:28,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435361752] [2021-03-25 09:01:28,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:28,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:28,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:28,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:28,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-25 09:01:28,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 328 transitions, 7184 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:28,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:28,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-25 09:01:28,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:29,228 INFO L129 PetriNetUnfolder]: 287/754 cut-off events. [2021-03-25 09:01:29,228 INFO L130 PetriNetUnfolder]: For 85981/86013 co-relation queries the response was YES. [2021-03-25 09:01:29,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12173 conditions, 754 events. 287/754 cut-off events. For 85981/86013 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5257 event pairs, 16 based on Foata normal form. 12/762 useless extension candidates. Maximal degree in co-relation 11937. Up to 554 conditions per place. [2021-03-25 09:01:29,238 INFO L132 encePairwiseOnDemand]: 86/102 looper letters, 292 selfloop transitions, 32 changer transitions 0/330 dead transitions. [2021-03-25 09:01:29,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 330 transitions, 8080 flow [2021-03-25 09:01:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2021-03-25 09:01:29,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2034313725490196 [2021-03-25 09:01:29,239 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 166 transitions. [2021-03-25 09:01:29,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 166 transitions. [2021-03-25 09:01:29,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:29,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 166 transitions. [2021-03-25 09:01:29,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:29,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:29,240 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:29,240 INFO L185 Difference]: Start difference. First operand has 354 places, 328 transitions, 7184 flow. Second operand 8 states and 166 transitions. [2021-03-25 09:01:29,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 330 transitions, 8080 flow [2021-03-25 09:01:29,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 330 transitions, 7923 flow, removed 62 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:29,610 INFO L241 Difference]: Finished difference. Result has 352 places, 325 transitions, 7091 flow [2021-03-25 09:01:29,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6979, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7091, PETRI_PLACES=352, PETRI_TRANSITIONS=325} [2021-03-25 09:01:29,611 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 336 predicate places. [2021-03-25 09:01:29,611 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:29,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 325 transitions, 7091 flow [2021-03-25 09:01:29,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 325 transitions, 7091 flow [2021-03-25 09:01:29,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 325 transitions, 7091 flow [2021-03-25 09:01:29,729 INFO L129 PetriNetUnfolder]: 284/748 cut-off events. [2021-03-25 09:01:29,729 INFO L130 PetriNetUnfolder]: For 79108/79123 co-relation queries the response was YES. [2021-03-25 09:01:29,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11219 conditions, 748 events. 284/748 cut-off events. For 79108/79123 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5325 event pairs, 10 based on Foata normal form. 11/755 useless extension candidates. Maximal degree in co-relation 10992. Up to 403 conditions per place. [2021-03-25 09:01:29,740 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:01:29,759 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:29,759 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:29,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-25 09:01:29,759 INFO L480 AbstractCegarLoop]: Abstraction has has 352 places, 325 transitions, 7091 flow [2021-03-25 09:01:29,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:29,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:29,759 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:29,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:29,976 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1366671606, now seen corresponding path program 1 times [2021-03-25 09:01:29,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:29,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676151267] [2021-03-25 09:01:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:29,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:29,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:29,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:29,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:29,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:29,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:30,004 INFO L142 QuantifierPusher]: treesize reduction 85, result has 19.8 percent of original size [2021-03-25 09:01:30,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:30,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:30,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:30,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676151267] [2021-03-25 09:01:30,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705114669] [2021-03-25 09:01:30,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:30,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:30,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:30,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:30,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:30,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:30,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:30,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,089 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:30,090 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:30,090 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:30,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:30,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:30,106 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-25 09:01:30,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,127 INFO L142 QuantifierPusher]: treesize reduction 13, result has 77.2 percent of original size [2021-03-25 09:01:30,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:30,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:30,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:30,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:30,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,130 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:30,130 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:30,131 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:01:30,151 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-25 09:01:30,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:30,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:30,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:30,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:01:30,154 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-25 09:01:30,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:30,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:30,156 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:30,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:30,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:30,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:30,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044054647] [2021-03-25 09:01:30,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:30,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:30,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:30,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:30,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 102 [2021-03-25 09:01:30,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 325 transitions, 7091 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:30,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:30,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 102 [2021-03-25 09:01:30,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:30,576 INFO L129 PetriNetUnfolder]: 290/760 cut-off events. [2021-03-25 09:01:30,576 INFO L130 PetriNetUnfolder]: For 83932/83996 co-relation queries the response was YES. [2021-03-25 09:01:30,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12078 conditions, 760 events. 290/760 cut-off events. For 83932/83996 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5349 event pairs, 15 based on Foata normal form. 21/779 useless extension candidates. Maximal degree in co-relation 11842. Up to 470 conditions per place. [2021-03-25 09:01:30,586 INFO L132 encePairwiseOnDemand]: 88/102 looper letters, 273 selfloop transitions, 32 changer transitions 0/334 dead transitions. [2021-03-25 09:01:30,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 334 transitions, 8139 flow [2021-03-25 09:01:30,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:30,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:30,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2021-03-25 09:01:30,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22549019607843138 [2021-03-25 09:01:30,587 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 184 transitions. [2021-03-25 09:01:30,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 184 transitions. [2021-03-25 09:01:30,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:30,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 184 transitions. [2021-03-25 09:01:30,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.0) internal successors, (184), 8 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:30,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:30,588 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:30,588 INFO L185 Difference]: Start difference. First operand has 352 places, 325 transitions, 7091 flow. Second operand 8 states and 184 transitions. [2021-03-25 09:01:30,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 334 transitions, 8139 flow [2021-03-25 09:01:30,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 334 transitions, 8067 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-25 09:01:30,941 INFO L241 Difference]: Finished difference. Result has 355 places, 328 transitions, 7222 flow [2021-03-25 09:01:30,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=7022, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7222, PETRI_PLACES=355, PETRI_TRANSITIONS=328} [2021-03-25 09:01:30,941 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 339 predicate places. [2021-03-25 09:01:30,941 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:30,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 328 transitions, 7222 flow [2021-03-25 09:01:30,942 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 328 transitions, 7222 flow [2021-03-25 09:01:30,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 355 places, 328 transitions, 7222 flow [2021-03-25 09:01:31,058 INFO L129 PetriNetUnfolder]: 290/756 cut-off events. [2021-03-25 09:01:31,058 INFO L130 PetriNetUnfolder]: For 83419/83435 co-relation queries the response was YES. [2021-03-25 09:01:31,064 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11638 conditions, 756 events. 290/756 cut-off events. For 83419/83435 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5384 event pairs, 14 based on Foata normal form. 7/759 useless extension candidates. Maximal degree in co-relation 11408. Up to 414 conditions per place. [2021-03-25 09:01:31,069 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:01:31,082 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:31,082 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:31,082 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 09:01:31,082 INFO L480 AbstractCegarLoop]: Abstraction has has 355 places, 328 transitions, 7222 flow [2021-03-25 09:01:31,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:31,083 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:31,083 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:31,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable366 [2021-03-25 09:01:31,283 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:31,283 INFO L82 PathProgramCache]: Analyzing trace with hash -359456084, now seen corresponding path program 1 times [2021-03-25 09:01:31,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:31,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855685288] [2021-03-25 09:01:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:31,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,296 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-25 09:01:31,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:31,302 INFO L142 QuantifierPusher]: treesize reduction 162, result has 34.9 percent of original size [2021-03-25 09:01:31,302 INFO L147 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-03-25 09:01:31,332 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:01:31,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:31,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:31,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855685288] [2021-03-25 09:01:31,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804391465] [2021-03-25 09:01:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:31,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:31,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:31,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:31,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:31,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:31,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:31,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,391 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:31,391 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:31,391 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:31,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:31,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:31,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:31,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:31,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:31,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:31,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:31,406 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:31,406 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:31,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:31,428 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-03-25 09:01:31,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:01:31,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:31,429 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.4 percent of original size [2021-03-25 09:01:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:31,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-25 09:01:31,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:31,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:31,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:31,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:31,498 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-25 09:01:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:31,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:31,499 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:31,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:31,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:31,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:31,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:31,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:31,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357695941] [2021-03-25 09:01:31,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:31,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:31,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:31,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:31,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2021-03-25 09:01:31,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 328 transitions, 7222 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:31,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:31,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2021-03-25 09:01:31,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:31,876 INFO L129 PetriNetUnfolder]: 292/752 cut-off events. [2021-03-25 09:01:31,876 INFO L130 PetriNetUnfolder]: For 85126/85158 co-relation queries the response was YES. [2021-03-25 09:01:31,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12253 conditions, 752 events. 292/752 cut-off events. For 85126/85158 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5158 event pairs, 16 based on Foata normal form. 13/761 useless extension candidates. Maximal degree in co-relation 12014. Up to 565 conditions per place. [2021-03-25 09:01:31,887 INFO L132 encePairwiseOnDemand]: 87/102 looper letters, 290 selfloop transitions, 30 changer transitions 0/325 dead transitions. [2021-03-25 09:01:31,887 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 325 transitions, 7830 flow [2021-03-25 09:01:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:31,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2021-03-25 09:01:31,888 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19730392156862744 [2021-03-25 09:01:31,888 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 161 transitions. [2021-03-25 09:01:31,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 161 transitions. [2021-03-25 09:01:31,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:31,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 161 transitions. [2021-03-25 09:01:31,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 20.125) internal successors, (161), 8 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:31,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:31,889 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 102.0) internal successors, (918), 9 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:31,889 INFO L185 Difference]: Start difference. First operand has 355 places, 328 transitions, 7222 flow. Second operand 8 states and 161 transitions. [2021-03-25 09:01:31,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 325 transitions, 7830 flow [2021-03-25 09:01:32,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 325 transitions, 7733 flow, removed 24 selfloop flow, removed 7 redundant places. [2021-03-25 09:01:32,244 INFO L241 Difference]: Finished difference. Result has 351 places, 322 transitions, 6965 flow [2021-03-25 09:01:32,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6857, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=6965, PETRI_PLACES=351, PETRI_TRANSITIONS=322} [2021-03-25 09:01:32,244 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 335 predicate places. [2021-03-25 09:01:32,245 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:32,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 351 places, 322 transitions, 6965 flow [2021-03-25 09:01:32,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 351 places, 322 transitions, 6965 flow [2021-03-25 09:01:32,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 351 places, 322 transitions, 6965 flow [2021-03-25 09:01:32,378 INFO L129 PetriNetUnfolder]: 289/744 cut-off events. [2021-03-25 09:01:32,378 INFO L130 PetriNetUnfolder]: For 80060/80076 co-relation queries the response was YES. [2021-03-25 09:01:32,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11357 conditions, 744 events. 289/744 cut-off events. For 80060/80076 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5194 event pairs, 13 based on Foata normal form. 7/747 useless extension candidates. Maximal degree in co-relation 11129. Up to 413 conditions per place. [2021-03-25 09:01:32,390 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 09:01:32,406 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:32,406 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:32,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 161 [2021-03-25 09:01:32,406 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 322 transitions, 6965 flow [2021-03-25 09:01:32,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:32,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:32,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:32,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:32,608 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash 643543491, now seen corresponding path program 1 times [2021-03-25 09:01:32,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:32,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176461202] [2021-03-25 09:01:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:32,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:32,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:32,636 INFO L142 QuantifierPusher]: treesize reduction 2108, result has 5.0 percent of original size [2021-03-25 09:01:32,637 INFO L147 QuantifierPusher]: treesize reduction 22, result has 80.2 percent of original size 89 [2021-03-25 09:01:32,677 INFO L142 QuantifierPusher]: treesize reduction 25, result has 72.2 percent of original size [2021-03-25 09:01:32,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:01:32,702 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:01:32,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:32,720 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:32,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:32,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:32,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176461202] [2021-03-25 09:01:32,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159977207] [2021-03-25 09:01:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:32,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:01:32,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:32,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:32,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:32,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:32,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:32,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:32,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:32,781 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-25 09:01:32,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:32,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-25 09:01:32,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,821 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:32,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:01:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,823 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:32,823 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,824 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:32,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:01:32,872 INFO L142 QuantifierPusher]: treesize reduction 61, result has 86.4 percent of original size [2021-03-25 09:01:32,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:01:32,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-03-25 09:01:32,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:01:32,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 742 [2021-03-25 09:01:32,879 INFO L142 QuantifierPusher]: treesize reduction 2598, result has 6.0 percent of original size [2021-03-25 09:01:32,881 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:01:32,881 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-25 09:01:32,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-25 09:01:32,992 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-25 09:01:32,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:32,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:01:32,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:01:32,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-25 09:01:32,997 INFO L142 QuantifierPusher]: treesize reduction 23, result has 89.7 percent of original size [2021-03-25 09:01:32,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:32,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,998 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:32,999 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:01:32,999 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:32,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,000 INFO L142 QuantifierPusher]: treesize reduction 152, result has 57.2 percent of original size [2021-03-25 09:01:33,002 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:01:33,002 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,002 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,003 INFO L142 QuantifierPusher]: treesize reduction 150, result has 43.8 percent of original size [2021-03-25 09:01:33,003 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:01:33,004 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,004 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,004 INFO L142 QuantifierPusher]: treesize reduction 63, result has 41.1 percent of original size [2021-03-25 09:01:33,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:33,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:33,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:33,038 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:01:33,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:01:33,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:33,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:01:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:33,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:01:33,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,043 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 4, 1] term [2021-03-25 09:01:33,043 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:33,044 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,044 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:01:33,044 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:33,045 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,045 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-25 09:01:33,045 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:33,046 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,046 INFO L142 QuantifierPusher]: treesize reduction 44, result has 42.9 percent of original size [2021-03-25 09:01:33,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:33,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:33,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:33,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:33,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:33,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:33,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,073 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:01:33,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:33,074 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,074 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:01:33,075 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:01:33,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:33,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:33,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:33,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:33,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:33,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:33,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:33,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:33,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899587734] [2021-03-25 09:01:33,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:33,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:33,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:33,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:33,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 102 [2021-03-25 09:01:33,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 322 transitions, 6965 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:33,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:33,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 102 [2021-03-25 09:01:33,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:33,335 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-03-25 09:01:33,588 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-03-25 09:01:34,521 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-03-25 09:01:34,732 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2021-03-25 09:01:34,966 INFO L129 PetriNetUnfolder]: 302/796 cut-off events. [2021-03-25 09:01:34,966 INFO L130 PetriNetUnfolder]: For 89322/89354 co-relation queries the response was YES. [2021-03-25 09:01:34,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13034 conditions, 796 events. 302/796 cut-off events. For 89322/89354 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5604 event pairs, 16 based on Foata normal form. 13/805 useless extension candidates. Maximal degree in co-relation 12797. Up to 609 conditions per place. [2021-03-25 09:01:34,976 INFO L132 encePairwiseOnDemand]: 83/102 looper letters, 294 selfloop transitions, 50 changer transitions 6/354 dead transitions. [2021-03-25 09:01:34,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 354 transitions, 9266 flow [2021-03-25 09:01:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 09:01:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 09:01:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 304 transitions. [2021-03-25 09:01:34,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14901960784313725 [2021-03-25 09:01:34,977 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 304 transitions. [2021-03-25 09:01:34,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 304 transitions. [2021-03-25 09:01:34,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:34,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 304 transitions. [2021-03-25 09:01:34,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.2) internal successors, (304), 20 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:34,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 102.0) internal successors, (2142), 21 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:34,980 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 102.0) internal successors, (2142), 21 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:34,980 INFO L185 Difference]: Start difference. First operand has 351 places, 322 transitions, 6965 flow. Second operand 20 states and 304 transitions. [2021-03-25 09:01:34,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 354 transitions, 9266 flow [2021-03-25 09:01:35,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 354 transitions, 9194 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:35,359 INFO L241 Difference]: Finished difference. Result has 373 places, 339 transitions, 8141 flow [2021-03-25 09:01:35,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=6891, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8141, PETRI_PLACES=373, PETRI_TRANSITIONS=339} [2021-03-25 09:01:35,359 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 357 predicate places. [2021-03-25 09:01:35,359 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:35,359 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 339 transitions, 8141 flow [2021-03-25 09:01:35,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 339 transitions, 8141 flow [2021-03-25 09:01:35,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 339 transitions, 8141 flow [2021-03-25 09:01:35,500 INFO L129 PetriNetUnfolder]: 297/780 cut-off events. [2021-03-25 09:01:35,500 INFO L130 PetriNetUnfolder]: For 96256/96306 co-relation queries the response was YES. [2021-03-25 09:01:35,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12645 conditions, 780 events. 297/780 cut-off events. For 96256/96306 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5549 event pairs, 14 based on Foata normal form. 8/784 useless extension candidates. Maximal degree in co-relation 12406. Up to 439 conditions per place. [2021-03-25 09:01:35,512 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 09:01:35,632 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-03-25 09:01:35,781 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2021-03-25 09:01:36,694 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:36,694 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 09:01:36,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1335 [2021-03-25 09:01:36,694 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 339 transitions, 8240 flow [2021-03-25 09:01:36,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:36,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:36,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:36,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable372 [2021-03-25 09:01:36,896 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:36,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:36,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1245137714, now seen corresponding path program 1 times [2021-03-25 09:01:36,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:36,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090423490] [2021-03-25 09:01:36,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:36,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,911 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-25 09:01:36,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:36,917 INFO L142 QuantifierPusher]: treesize reduction 102, result has 34.6 percent of original size [2021-03-25 09:01:36,917 INFO L147 QuantifierPusher]: treesize reduction 23, result has 57.4 percent of original size 31 [2021-03-25 09:01:36,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:36,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:36,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:36,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090423490] [2021-03-25 09:01:36,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30882016] [2021-03-25 09:01:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:36,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-25 09:01:36,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:36,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:36,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:36,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:36,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:36,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:36,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,989 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:36,990 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,990 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:36,990 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:36,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:36,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:37,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:37,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:37,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:37,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 09:01:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:01:37,006 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size [2021-03-25 09:01:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:37,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:01:37,031 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size [2021-03-25 09:01:37,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:37,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:37,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:37,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:01:37,034 INFO L142 QuantifierPusher]: treesize reduction 109, result has 51.3 percent of original size [2021-03-25 09:01:37,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:37,035 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:37,037 INFO L142 QuantifierPusher]: treesize reduction 90, result has 53.4 percent of original size [2021-03-25 09:01:37,037 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:37,037 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:37,038 INFO L142 QuantifierPusher]: treesize reduction 76, result has 44.9 percent of original size [2021-03-25 09:01:37,038 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:37,038 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:37,039 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-25 09:01:37,040 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:37,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:37,041 INFO L142 QuantifierPusher]: treesize reduction 20, result has 37.5 percent of original size [2021-03-25 09:01:37,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:37,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:37,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:37,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:37,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:37,058 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:01:37,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:37,062 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:37,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:37,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:37,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:37,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588469705] [2021-03-25 09:01:37,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:37,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:37,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:37,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:37,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 108 [2021-03-25 09:01:37,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 339 transitions, 8240 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:37,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:37,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 108 [2021-03-25 09:01:37,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:37,478 INFO L129 PetriNetUnfolder]: 298/773 cut-off events. [2021-03-25 09:01:37,478 INFO L130 PetriNetUnfolder]: For 98654/98694 co-relation queries the response was YES. [2021-03-25 09:01:37,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13261 conditions, 773 events. 298/773 cut-off events. For 98654/98694 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5349 event pairs, 14 based on Foata normal form. 12/780 useless extension candidates. Maximal degree in co-relation 13013. Up to 573 conditions per place. [2021-03-25 09:01:37,489 INFO L132 encePairwiseOnDemand]: 91/108 looper letters, 305 selfloop transitions, 35 changer transitions 0/345 dead transitions. [2021-03-25 09:01:37,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 345 transitions, 9305 flow [2021-03-25 09:01:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-25 09:01:37,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19675925925925927 [2021-03-25 09:01:37,490 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-25 09:01:37,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-25 09:01:37,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:37,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-25 09:01:37,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:37,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:37,491 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:37,491 INFO L185 Difference]: Start difference. First operand has 370 places, 339 transitions, 8240 flow. Second operand 8 states and 170 transitions. [2021-03-25 09:01:37,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 345 transitions, 9305 flow [2021-03-25 09:01:37,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 345 transitions, 8569 flow, removed 360 selfloop flow, removed 7 redundant places. [2021-03-25 09:01:37,948 INFO L241 Difference]: Finished difference. Result has 370 places, 339 transitions, 7619 flow [2021-03-25 09:01:37,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7479, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7619, PETRI_PLACES=370, PETRI_TRANSITIONS=339} [2021-03-25 09:01:37,949 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 354 predicate places. [2021-03-25 09:01:37,949 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:37,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 370 places, 339 transitions, 7619 flow [2021-03-25 09:01:37,949 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 370 places, 339 transitions, 7619 flow [2021-03-25 09:01:37,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 339 transitions, 7619 flow [2021-03-25 09:01:38,069 INFO L129 PetriNetUnfolder]: 295/769 cut-off events. [2021-03-25 09:01:38,069 INFO L130 PetriNetUnfolder]: For 92591/92641 co-relation queries the response was YES. [2021-03-25 09:01:38,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12053 conditions, 769 events. 295/769 cut-off events. For 92591/92641 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5441 event pairs, 12 based on Foata normal form. 8/772 useless extension candidates. Maximal degree in co-relation 11814. Up to 425 conditions per place. [2021-03-25 09:01:38,083 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 09:01:38,096 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:38,096 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:38,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-25 09:01:38,097 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 339 transitions, 7619 flow [2021-03-25 09:01:38,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:38,097 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:38,097 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:38,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:38,297 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:38,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:38,298 INFO L82 PathProgramCache]: Analyzing trace with hash 122697819, now seen corresponding path program 1 times [2021-03-25 09:01:38,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:38,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428762573] [2021-03-25 09:01:38,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:38,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:38,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:38,329 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-25 09:01:38,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:01:38,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:38,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:38,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428762573] [2021-03-25 09:01:38,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262948870] [2021-03-25 09:01:38,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:38,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:38,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:38,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:38,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:38,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:38,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:38,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,403 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:38,403 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:38,404 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:38,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-25 09:01:38,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-25 09:01:38,422 INFO L142 QuantifierPusher]: treesize reduction 4, result has 91.1 percent of original size [2021-03-25 09:01:38,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:38,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:38,447 INFO L142 QuantifierPusher]: treesize reduction 9, result has 87.0 percent of original size [2021-03-25 09:01:38,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:01:38,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:38,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:38,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:38,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,451 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:38,451 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:38,452 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:38,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:38,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:01:38,480 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-25 09:01:38,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:01:38,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:38,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:38,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:38,484 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-25 09:01:38,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:38,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:38,487 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:38,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:38,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:38,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:38,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:38,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992258281] [2021-03-25 09:01:38,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:38,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:38,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:38,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:38,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 108 [2021-03-25 09:01:38,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 339 transitions, 7619 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:38,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:38,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 108 [2021-03-25 09:01:38,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:38,967 INFO L129 PetriNetUnfolder]: 301/780 cut-off events. [2021-03-25 09:01:38,967 INFO L130 PetriNetUnfolder]: For 95837/95878 co-relation queries the response was YES. [2021-03-25 09:01:38,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12951 conditions, 780 events. 301/780 cut-off events. For 95837/95878 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5425 event pairs, 12 based on Foata normal form. 14/791 useless extension candidates. Maximal degree in co-relation 12703. Up to 487 conditions per place. [2021-03-25 09:01:38,978 INFO L132 encePairwiseOnDemand]: 92/108 looper letters, 284 selfloop transitions, 35 changer transitions 0/347 dead transitions. [2021-03-25 09:01:38,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 347 transitions, 8654 flow [2021-03-25 09:01:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:01:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:01:38,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions. [2021-03-25 09:01:38,980 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21643518518518517 [2021-03-25 09:01:38,980 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 187 transitions. [2021-03-25 09:01:38,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 187 transitions. [2021-03-25 09:01:38,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:38,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 187 transitions. [2021-03-25 09:01:38,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:38,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:38,981 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:38,981 INFO L185 Difference]: Start difference. First operand has 370 places, 339 transitions, 7619 flow. Second operand 8 states and 187 transitions. [2021-03-25 09:01:38,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 347 transitions, 8654 flow [2021-03-25 09:01:39,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 347 transitions, 8572 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:39,390 INFO L241 Difference]: Finished difference. Result has 373 places, 342 transitions, 7760 flow [2021-03-25 09:01:39,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7541, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7760, PETRI_PLACES=373, PETRI_TRANSITIONS=342} [2021-03-25 09:01:39,391 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 357 predicate places. [2021-03-25 09:01:39,391 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:39,391 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 342 transitions, 7760 flow [2021-03-25 09:01:39,391 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 342 transitions, 7760 flow [2021-03-25 09:01:39,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 342 transitions, 7760 flow [2021-03-25 09:01:39,515 INFO L129 PetriNetUnfolder]: 301/779 cut-off events. [2021-03-25 09:01:39,515 INFO L130 PetriNetUnfolder]: For 96897/96947 co-relation queries the response was YES. [2021-03-25 09:01:39,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12502 conditions, 779 events. 301/779 cut-off events. For 96897/96947 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5512 event pairs, 14 based on Foata normal form. 8/782 useless extension candidates. Maximal degree in co-relation 12259. Up to 437 conditions per place. [2021-03-25 09:01:39,527 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 09:01:39,541 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:39,541 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:39,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 150 [2021-03-25 09:01:39,541 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 342 transitions, 7760 flow [2021-03-25 09:01:39,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:39,541 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:39,541 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:39,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable387 [2021-03-25 09:01:39,741 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:39,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:39,742 INFO L82 PathProgramCache]: Analyzing trace with hash -504145939, now seen corresponding path program 2 times [2021-03-25 09:01:39,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:39,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184247805] [2021-03-25 09:01:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:39,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:39,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:39,777 INFO L142 QuantifierPusher]: treesize reduction 209, result has 16.1 percent of original size [2021-03-25 09:01:39,778 INFO L147 QuantifierPusher]: treesize reduction 12, result has 70.0 percent of original size 28 [2021-03-25 09:01:39,794 INFO L142 QuantifierPusher]: treesize reduction 219, result has 34.0 percent of original size [2021-03-25 09:01:39,794 INFO L147 QuantifierPusher]: treesize reduction 22, result has 80.5 percent of original size 91 [2021-03-25 09:01:39,847 INFO L142 QuantifierPusher]: treesize reduction 15, result has 84.0 percent of original size [2021-03-25 09:01:39,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:39,879 INFO L142 QuantifierPusher]: treesize reduction 2167, result has 7.3 percent of original size [2021-03-25 09:01:39,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:39,950 INFO L142 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-03-25 09:01:39,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:39,965 INFO L142 QuantifierPusher]: treesize reduction 12, result has 29.4 percent of original size [2021-03-25 09:01:39,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:39,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184247805] [2021-03-25 09:01:39,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228071907] [2021-03-25 09:01:39,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:40,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:40,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:40,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 36 conjunts are in the unsatisfiable core [2021-03-25 09:01:40,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:40,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:40,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:40,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:40,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:40,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,036 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:40,036 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,037 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:40,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:40,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:40,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:40,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:40,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:40,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:40,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:40,058 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.9 percent of original size [2021-03-25 09:01:40,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:40,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-03-25 09:01:40,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 616 [2021-03-25 09:01:40,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 766 [2021-03-25 09:01:40,069 INFO L142 QuantifierPusher]: treesize reduction 6621, result has 3.1 percent of original size [2021-03-25 09:01:40,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,070 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:40,070 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,071 INFO L142 QuantifierPusher]: treesize reduction 26, result has 72.9 percent of original size [2021-03-25 09:01:40,073 INFO L147 QuantifierPusher]: treesize reduction 32, result has 36.0 percent of original size 18 [2021-03-25 09:01:40,074 INFO L147 QuantifierPusher]: treesize reduction 32, result has 36.0 percent of original size 18 [2021-03-25 09:01:40,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,079 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-25 09:01:40,080 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:40,092 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,093 INFO L142 QuantifierPusher]: treesize reduction 111, result has 50.4 percent of original size [2021-03-25 09:01:40,094 INFO L147 QuantifierPusher]: treesize reduction 40, result has 63.0 percent of original size 68 [2021-03-25 09:01:40,096 INFO L147 QuantifierPusher]: treesize reduction 40, result has 75.2 percent of original size 121 [2021-03-25 09:01:40,097 INFO L142 QuantifierPusher]: treesize reduction 40, result has 75.2 percent of original size [2021-03-25 09:01:40,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 121 [2021-03-25 09:01:40,190 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-03-25 09:01:40,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:01:40,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-25 09:01:40,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:40,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-25 09:01:40,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,195 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:40,196 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,197 INFO L142 QuantifierPusher]: treesize reduction 30, result has 45.5 percent of original size [2021-03-25 09:01:40,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:01:40,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 09:01:40,198 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:40,199 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:40,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 09:01:40,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-03-25 09:01:40,290 INFO L142 QuantifierPusher]: treesize reduction 11, result has 93.3 percent of original size [2021-03-25 09:01:40,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-03-25 09:01:40,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,293 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 09:01:40,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-25 09:01:40,295 INFO L142 QuantifierPusher]: treesize reduction 111, result has 62.9 percent of original size [2021-03-25 09:01:40,296 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 2, 1] term [2021-03-25 09:01:40,296 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:40,296 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,297 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 1] term [2021-03-25 09:01:40,297 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:40,297 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,298 INFO L147 QuantifierPusher]: treesize reduction 123, result has 56.1 percent of original size 157 [2021-03-25 09:01:40,299 INFO L142 QuantifierPusher]: treesize reduction 123, result has 56.1 percent of original size [2021-03-25 09:01:40,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:01:40,370 INFO L142 QuantifierPusher]: treesize reduction 33, result has 85.0 percent of original size [2021-03-25 09:01:40,371 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:40,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-25 09:01:40,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-03-25 09:01:40,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-03-25 09:01:40,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-25 09:01:40,381 INFO L142 QuantifierPusher]: treesize reduction 23, result has 90.2 percent of original size [2021-03-25 09:01:40,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,383 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:40,384 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,384 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.5 percent of original size [2021-03-25 09:01:40,385 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:40,385 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,386 INFO L142 QuantifierPusher]: treesize reduction 33, result has 79.2 percent of original size [2021-03-25 09:01:40,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:01:40,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:40,388 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,392 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-25 09:01:40,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:01:40,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:40,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-25 09:01:40,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:01:40,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-03-25 09:01:40,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,400 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,401 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,403 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.6 percent of original size [2021-03-25 09:01:40,403 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,404 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,406 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-25 09:01:40,406 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,407 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,410 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,410 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,411 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,419 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,420 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,421 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,422 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,423 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-25 09:01:40,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-25 09:01:40,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,436 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,438 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,438 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,439 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-25 09:01:40,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-25 09:01:40,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:40,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:40,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-25 09:01:40,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-25 09:01:40,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-25 09:01:40,450 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-25 09:01:40,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-03-25 09:01:40,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,457 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:40,457 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,458 INFO L142 QuantifierPusher]: treesize reduction 33, result has 79.2 percent of original size [2021-03-25 09:01:40,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:01:40,460 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:40,461 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,462 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-25 09:01:40,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:01:40,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:40,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-25 09:01:40,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:01:40,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-03-25 09:01:40,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,471 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,471 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,471 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,474 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.6 percent of original size [2021-03-25 09:01:40,474 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,490 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,493 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-25 09:01:40,493 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,494 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,497 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,498 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,499 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,507 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,508 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,510 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,510 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,511 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-25 09:01:40,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-25 09:01:40,525 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,526 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,528 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,528 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,529 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-25 09:01:40,530 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-25 09:01:40,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:40,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:40,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-25 09:01:40,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-25 09:01:40,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-25 09:01:40,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-03-25 09:01:40,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-03-25 09:01:40,546 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-25 09:01:40,546 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,549 INFO L142 QuantifierPusher]: treesize reduction 33, result has 90.9 percent of original size [2021-03-25 09:01:40,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:01:40,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:40,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,554 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,554 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,556 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,556 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,557 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-25 09:01:40,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,559 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-25 09:01:40,561 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:40,563 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:40,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-25 09:01:40,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-03-25 09:01:40,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-03-25 09:01:40,568 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-25 09:01:40,568 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,572 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:01:40,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:40,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,576 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,576 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,577 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.9 percent of original size [2021-03-25 09:01:40,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-25 09:01:40,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:40,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:01:40,584 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 14 disjuncts [2021-03-25 09:01:40,584 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,585 INFO L142 QuantifierPusher]: treesize reduction 30, result has 86.7 percent of original size [2021-03-25 09:01:40,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:40,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:40,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,591 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:40,592 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,592 INFO L142 QuantifierPusher]: treesize reduction 58, result has 58.9 percent of original size [2021-03-25 09:01:40,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:01:40,595 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:01:40,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 09:01:40,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,598 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,598 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,600 INFO L142 QuantifierPusher]: treesize reduction 58, result has 82.6 percent of original size [2021-03-25 09:01:40,601 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,601 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,604 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,605 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,606 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,606 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,612 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,614 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,615 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,616 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,617 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,618 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,622 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-03-25 09:01:40,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-03-25 09:01:40,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-03-25 09:01:40,631 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-25 09:01:40,632 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,634 INFO L142 QuantifierPusher]: treesize reduction 58, result has 83.2 percent of original size [2021-03-25 09:01:40,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:40,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,646 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,646 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,648 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,648 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,649 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-25 09:01:40,659 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,661 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:40,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,670 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,671 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,672 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,672 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:01:40,677 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-25 09:01:40,678 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,679 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.8 percent of original size [2021-03-25 09:01:40,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:40,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:40,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:40,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,688 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:01:40,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:01:40,691 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,692 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,693 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,695 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:01:40,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-25 09:01:40,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-25 09:01:40,701 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 12 disjuncts [2021-03-25 09:01:40,701 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,707 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:40,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,711 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:01:40,711 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,712 INFO L142 QuantifierPusher]: treesize reduction 30, result has 84.9 percent of original size [2021-03-25 09:01:40,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:40,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-03-25 09:01:40,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:01:40,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:01:40,718 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2021-03-25 09:01:40,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,720 INFO L142 QuantifierPusher]: treesize reduction 30, result has 85.8 percent of original size [2021-03-25 09:01:40,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:40,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:40,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:40,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:40,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:40,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:40,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:40,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:40,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:40,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:40,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,756 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-25 09:01:40,756 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:40,757 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:40,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:40,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:40,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:40,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:40,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908002773] [2021-03-25 09:01:40,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:40,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:40,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:40,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:40,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 108 [2021-03-25 09:01:40,785 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 342 transitions, 7760 flow. Second operand has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:40,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:40,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 108 [2021-03-25 09:01:40,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:41,256 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-03-25 09:01:41,558 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-25 09:01:41,807 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-25 09:01:42,087 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-03-25 09:01:42,228 INFO L129 PetriNetUnfolder]: 304/791 cut-off events. [2021-03-25 09:01:42,228 INFO L130 PetriNetUnfolder]: For 99581/99619 co-relation queries the response was YES. [2021-03-25 09:01:42,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13418 conditions, 791 events. 304/791 cut-off events. For 99581/99619 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5551 event pairs, 12 based on Foata normal form. 10/796 useless extension candidates. Maximal degree in co-relation 13166. Up to 494 conditions per place. [2021-03-25 09:01:42,238 INFO L132 encePairwiseOnDemand]: 87/108 looper letters, 314 selfloop transitions, 31 changer transitions 6/356 dead transitions. [2021-03-25 09:01:42,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 356 transitions, 9115 flow [2021-03-25 09:01:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 188 transitions. [2021-03-25 09:01:42,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17407407407407408 [2021-03-25 09:01:42,239 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 188 transitions. [2021-03-25 09:01:42,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 188 transitions. [2021-03-25 09:01:42,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:42,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 188 transitions. [2021-03-25 09:01:42,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:42,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 108.0) internal successors, (1188), 11 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:42,241 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 108.0) internal successors, (1188), 11 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:42,241 INFO L185 Difference]: Start difference. First operand has 373 places, 342 transitions, 7760 flow. Second operand 10 states and 188 transitions. [2021-03-25 09:01:42,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 356 transitions, 9115 flow [2021-03-25 09:01:42,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 356 transitions, 8952 flow, removed 41 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:42,663 INFO L241 Difference]: Finished difference. Result has 380 places, 340 transitions, 7624 flow [2021-03-25 09:01:42,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7628, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7624, PETRI_PLACES=380, PETRI_TRANSITIONS=340} [2021-03-25 09:01:42,663 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 364 predicate places. [2021-03-25 09:01:42,663 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:42,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 340 transitions, 7624 flow [2021-03-25 09:01:42,663 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 340 transitions, 7624 flow [2021-03-25 09:01:42,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 375 places, 340 transitions, 7624 flow [2021-03-25 09:01:42,789 INFO L129 PetriNetUnfolder]: 300/776 cut-off events. [2021-03-25 09:01:42,790 INFO L130 PetriNetUnfolder]: For 96463/96514 co-relation queries the response was YES. [2021-03-25 09:01:42,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12473 conditions, 776 events. 300/776 cut-off events. For 96463/96514 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5432 event pairs, 15 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 12291. Up to 436 conditions per place. [2021-03-25 09:01:42,802 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-25 09:01:42,815 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:42,815 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:42,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-25 09:01:42,815 INFO L480 AbstractCegarLoop]: Abstraction has has 375 places, 340 transitions, 7624 flow [2021-03-25 09:01:42,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 12.0) internal successors, (168), 14 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:42,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:42,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:43,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:43,018 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -906458325, now seen corresponding path program 1 times [2021-03-25 09:01:43,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:43,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411019904] [2021-03-25 09:01:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:43,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:43,048 INFO L142 QuantifierPusher]: treesize reduction 5144, result has 3.2 percent of original size [2021-03-25 09:01:43,049 INFO L147 QuantifierPusher]: treesize reduction 22, result has 87.2 percent of original size 150 [2021-03-25 09:01:43,091 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:01:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:43,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:43,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411019904] [2021-03-25 09:01:43,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158673385] [2021-03-25 09:01:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:43,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:01:43,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:43,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:43,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:43,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:43,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:43,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,152 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:43,153 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,153 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:43,153 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:43,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:43,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:43,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:43,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:43,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,166 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:43,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:43,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:43,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,168 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:43,168 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,168 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:43,169 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:01:43,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:43,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:43,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:43,190 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.2 percent of original size [2021-03-25 09:01:43,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-25 09:01:43,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-25 09:01:43,194 INFO L142 QuantifierPusher]: treesize reduction 1317, result has 7.4 percent of original size [2021-03-25 09:01:43,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:43,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:43,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.6 percent of original size [2021-03-25 09:01:43,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:43,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:43,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:43,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-25 09:01:43,291 INFO L142 QuantifierPusher]: treesize reduction 55, result has 38.2 percent of original size [2021-03-25 09:01:43,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:43,296 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:43,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:43,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:43,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:43,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469035331] [2021-03-25 09:01:43,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:43,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:43,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:43,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 108 [2021-03-25 09:01:43,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 340 transitions, 7624 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:43,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:43,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 108 [2021-03-25 09:01:43,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:43,846 INFO L129 PetriNetUnfolder]: 307/787 cut-off events. [2021-03-25 09:01:43,846 INFO L130 PetriNetUnfolder]: For 101038/101074 co-relation queries the response was YES. [2021-03-25 09:01:43,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13592 conditions, 787 events. 307/787 cut-off events. For 101038/101074 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5441 event pairs, 16 based on Foata normal form. 14/796 useless extension candidates. Maximal degree in co-relation 13407. Up to 579 conditions per place. [2021-03-25 09:01:43,856 INFO L132 encePairwiseOnDemand]: 89/108 looper letters, 303 selfloop transitions, 39 changer transitions 0/347 dead transitions. [2021-03-25 09:01:43,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 347 transitions, 8983 flow [2021-03-25 09:01:43,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:01:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:01:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2021-03-25 09:01:43,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19032921810699588 [2021-03-25 09:01:43,858 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 185 transitions. [2021-03-25 09:01:43,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 185 transitions. [2021-03-25 09:01:43,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:43,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 185 transitions. [2021-03-25 09:01:43,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.555555555555557) internal successors, (185), 9 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:43,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:43,860 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:43,861 INFO L185 Difference]: Start difference. First operand has 375 places, 340 transitions, 7624 flow. Second operand 9 states and 185 transitions. [2021-03-25 09:01:43,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 347 transitions, 8983 flow [2021-03-25 09:01:44,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 347 transitions, 8914 flow, removed 12 selfloop flow, removed 10 redundant places. [2021-03-25 09:01:44,321 INFO L241 Difference]: Finished difference. Result has 371 places, 337 transitions, 7696 flow [2021-03-25 09:01:44,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=7446, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7696, PETRI_PLACES=371, PETRI_TRANSITIONS=337} [2021-03-25 09:01:44,322 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 355 predicate places. [2021-03-25 09:01:44,322 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:44,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 337 transitions, 7696 flow [2021-03-25 09:01:44,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 337 transitions, 7696 flow [2021-03-25 09:01:44,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 337 transitions, 7696 flow [2021-03-25 09:01:44,449 INFO L129 PetriNetUnfolder]: 304/781 cut-off events. [2021-03-25 09:01:44,449 INFO L130 PetriNetUnfolder]: For 93935/93951 co-relation queries the response was YES. [2021-03-25 09:01:44,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12702 conditions, 781 events. 304/781 cut-off events. For 93935/93951 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5469 event pairs, 15 based on Foata normal form. 7/783 useless extension candidates. Maximal degree in co-relation 12460. Up to 446 conditions per place. [2021-03-25 09:01:44,461 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:44,654 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:44,655 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:44,655 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 333 [2021-03-25 09:01:44,655 INFO L480 AbstractCegarLoop]: Abstraction has has 371 places, 337 transitions, 7706 flow [2021-03-25 09:01:44,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:44,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:44,655 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:44,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable442 [2021-03-25 09:01:44,860 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:44,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:44,860 INFO L82 PathProgramCache]: Analyzing trace with hash 491203957, now seen corresponding path program 1 times [2021-03-25 09:01:44,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:44,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803891368] [2021-03-25 09:01:44,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:44,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:44,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:01:44,902 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-25 09:01:44,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:44,912 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:01:44,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:01:44,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:44,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:44,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803891368] [2021-03-25 09:01:44,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693180556] [2021-03-25 09:01:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:44,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:01:44,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:44,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:44,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:44,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:44,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:44,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:44,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,971 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:44,971 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:44,972 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:44,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-25 09:01:44,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-25 09:01:44,990 INFO L142 QuantifierPusher]: treesize reduction 309, result has 25.4 percent of original size [2021-03-25 09:01:44,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:44,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:44,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:01:45,100 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2021-03-25 09:01:45,101 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.0 percent of original size [2021-03-25 09:01:45,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-25 09:01:45,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:45,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 09:01:45,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,104 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:45,105 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,109 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:45,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:45,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 09:01:45,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-25 09:01:45,151 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-03-25 09:01:45,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-25 09:01:45,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,152 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:45,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:01:45,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,154 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,155 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:45,155 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,156 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-25 09:01:45,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:45,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:45,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:45,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:01:45,181 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-25 09:01:45,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:01:45,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:01:45,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:45,184 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-25 09:01:45,184 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:45,184 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:45,185 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-25 09:01:45,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:45,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:45,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:01:45,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:45,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:45,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:45,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-25 09:01:45,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284566997] [2021-03-25 09:01:45,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:01:45,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:01:45,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:01:45,192 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 109 [2021-03-25 09:01:45,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 337 transitions, 7706 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:45,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:45,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 109 [2021-03-25 09:01:45,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:45,672 INFO L129 PetriNetUnfolder]: 305/785 cut-off events. [2021-03-25 09:01:45,672 INFO L130 PetriNetUnfolder]: For 96316/96352 co-relation queries the response was YES. [2021-03-25 09:01:45,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13472 conditions, 785 events. 305/785 cut-off events. For 96316/96352 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5439 event pairs, 18 based on Foata normal form. 11/791 useless extension candidates. Maximal degree in co-relation 13221. Up to 589 conditions per place. [2021-03-25 09:01:45,684 INFO L132 encePairwiseOnDemand]: 90/109 looper letters, 298 selfloop transitions, 35 changer transitions 2/340 dead transitions. [2021-03-25 09:01:45,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 340 transitions, 8578 flow [2021-03-25 09:01:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 193 transitions. [2021-03-25 09:01:45,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17706422018348625 [2021-03-25 09:01:45,685 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 193 transitions. [2021-03-25 09:01:45,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 193 transitions. [2021-03-25 09:01:45,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:45,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 193 transitions. [2021-03-25 09:01:45,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.3) internal successors, (193), 10 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:45,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:45,686 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 109.0) internal successors, (1199), 11 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:45,686 INFO L185 Difference]: Start difference. First operand has 371 places, 337 transitions, 7706 flow. Second operand 10 states and 193 transitions. [2021-03-25 09:01:45,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 340 transitions, 8578 flow [2021-03-25 09:01:46,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 340 transitions, 8334 flow, removed 70 selfloop flow, removed 5 redundant places. [2021-03-25 09:01:46,084 INFO L241 Difference]: Finished difference. Result has 375 places, 333 transitions, 7485 flow [2021-03-25 09:01:46,084 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=7445, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7485, PETRI_PLACES=375, PETRI_TRANSITIONS=333} [2021-03-25 09:01:46,084 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 359 predicate places. [2021-03-25 09:01:46,084 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:46,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 375 places, 333 transitions, 7485 flow [2021-03-25 09:01:46,084 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 375 places, 333 transitions, 7485 flow [2021-03-25 09:01:46,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 333 transitions, 7485 flow [2021-03-25 09:01:46,240 INFO L129 PetriNetUnfolder]: 302/774 cut-off events. [2021-03-25 09:01:46,240 INFO L130 PetriNetUnfolder]: For 91854/91869 co-relation queries the response was YES. [2021-03-25 09:01:46,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12538 conditions, 774 events. 302/774 cut-off events. For 91854/91869 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5437 event pairs, 16 based on Foata normal form. 11/780 useless extension candidates. Maximal degree in co-relation 12297. Up to 445 conditions per place. [2021-03-25 09:01:46,252 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:46,517 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:46,517 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:01:46,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 433 [2021-03-25 09:01:46,518 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 333 transitions, 7513 flow [2021-03-25 09:01:46,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:46,518 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:46,518 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:46,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:46,718 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:46,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:46,719 INFO L82 PathProgramCache]: Analyzing trace with hash -847418967, now seen corresponding path program 1 times [2021-03-25 09:01:46,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:46,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153200406] [2021-03-25 09:01:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:46,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,733 INFO L142 QuantifierPusher]: treesize reduction 28, result has 26.3 percent of original size [2021-03-25 09:01:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:46,740 INFO L142 QuantifierPusher]: treesize reduction 25, result has 55.4 percent of original size [2021-03-25 09:01:46,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:01:46,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:01:46,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:46,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153200406] [2021-03-25 09:01:46,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205393331] [2021-03-25 09:01:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:46,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:01:46,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:46,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:46,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:46,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:46,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,838 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:46,838 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,839 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,839 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:46,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:46,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-25 09:01:46,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-25 09:01:46,857 INFO L142 QuantifierPusher]: treesize reduction 34, result has 64.6 percent of original size [2021-03-25 09:01:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:01:46,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:01:46,892 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.4 percent of original size [2021-03-25 09:01:46,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:01:46,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,894 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 09:01:46,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:01:46,896 INFO L142 QuantifierPusher]: treesize reduction 109, result has 54.2 percent of original size [2021-03-25 09:01:46,897 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:46,897 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,898 INFO L142 QuantifierPusher]: treesize reduction 91, result has 58.8 percent of original size [2021-03-25 09:01:46,899 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:46,900 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,901 INFO L142 QuantifierPusher]: treesize reduction 89, result has 46.1 percent of original size [2021-03-25 09:01:46,901 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:46,901 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:46,902 INFO L142 QuantifierPusher]: treesize reduction 80, result has 39.8 percent of original size [2021-03-25 09:01:46,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:01:46,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:46,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:46,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:46,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:01:46,923 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:01:46,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:46,928 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:01:46,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:46,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:46,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:46,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:01:46,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799593871] [2021-03-25 09:01:46,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:01:46,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:46,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:01:46,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:01:46,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 110 [2021-03-25 09:01:46,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 333 transitions, 7513 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:46,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:46,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 110 [2021-03-25 09:01:46,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:47,448 INFO L129 PetriNetUnfolder]: 302/760 cut-off events. [2021-03-25 09:01:47,448 INFO L130 PetriNetUnfolder]: For 91944/91980 co-relation queries the response was YES. [2021-03-25 09:01:47,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13030 conditions, 760 events. 302/760 cut-off events. For 91944/91980 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5177 event pairs, 15 based on Foata normal form. 13/769 useless extension candidates. Maximal degree in co-relation 12780. Up to 580 conditions per place. [2021-03-25 09:01:47,463 INFO L132 encePairwiseOnDemand]: 92/110 looper letters, 297 selfloop transitions, 32 changer transitions 0/334 dead transitions. [2021-03-25 09:01:47,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 334 transitions, 8328 flow [2021-03-25 09:01:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:01:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:01:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2021-03-25 09:01:47,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2 [2021-03-25 09:01:47,465 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2021-03-25 09:01:47,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2021-03-25 09:01:47,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:47,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2021-03-25 09:01:47,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:47,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:47,465 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 110.0) internal successors, (880), 8 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:47,465 INFO L185 Difference]: Start difference. First operand has 373 places, 333 transitions, 7513 flow. Second operand 7 states and 154 transitions. [2021-03-25 09:01:47,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 334 transitions, 8328 flow [2021-03-25 09:01:47,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 334 transitions, 8232 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-03-25 09:01:47,851 INFO L241 Difference]: Finished difference. Result has 368 places, 329 transitions, 7374 flow [2021-03-25 09:01:47,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=7310, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7374, PETRI_PLACES=368, PETRI_TRANSITIONS=329} [2021-03-25 09:01:47,851 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 352 predicate places. [2021-03-25 09:01:47,851 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:47,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 368 places, 329 transitions, 7374 flow [2021-03-25 09:01:47,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 368 places, 329 transitions, 7374 flow [2021-03-25 09:01:47,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 368 places, 329 transitions, 7374 flow [2021-03-25 09:01:47,973 INFO L129 PetriNetUnfolder]: 299/757 cut-off events. [2021-03-25 09:01:47,973 INFO L130 PetriNetUnfolder]: For 87743/87772 co-relation queries the response was YES. [2021-03-25 09:01:47,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12203 conditions, 757 events. 299/757 cut-off events. For 87743/87772 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5229 event pairs, 15 based on Foata normal form. 5/758 useless extension candidates. Maximal degree in co-relation 11964. Up to 435 conditions per place. [2021-03-25 09:01:47,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 09:01:47,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:47,998 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:47,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147 [2021-03-25 09:01:47,998 INFO L480 AbstractCegarLoop]: Abstraction has has 368 places, 329 transitions, 7374 flow [2021-03-25 09:01:47,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:47,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:47,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:48,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:48,199 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:48,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:48,199 INFO L82 PathProgramCache]: Analyzing trace with hash -419765640, now seen corresponding path program 1 times [2021-03-25 09:01:48,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:48,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858799845] [2021-03-25 09:01:48,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:48,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:48,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:48,223 INFO L142 QuantifierPusher]: treesize reduction 38, result has 63.1 percent of original size [2021-03-25 09:01:48,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:01:48,255 INFO L142 QuantifierPusher]: treesize reduction 60, result has 59.5 percent of original size [2021-03-25 09:01:48,256 INFO L147 QuantifierPusher]: treesize reduction 28, result has 68.2 percent of original size 60 [2021-03-25 09:01:48,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:48,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:48,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:48,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858799845] [2021-03-25 09:01:48,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489419049] [2021-03-25 09:01:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:48,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:01:48,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:48,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:48,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:48,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:48,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:48,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:48,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:48,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:48,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,443 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:48,444 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,444 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:48,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:48,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,466 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:01:48,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:01:48,468 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-25 09:01:48,469 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:48,469 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,470 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:48,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:48,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:48,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:48,505 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.2 percent of original size [2021-03-25 09:01:48,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 09:01:48,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:48,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:01:48,510 INFO L142 QuantifierPusher]: treesize reduction 107, result has 50.2 percent of original size [2021-03-25 09:01:48,511 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-25 09:01:48,512 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-25 09:01:48,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:01:48,570 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-25 09:01:48,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:48,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:01:48,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-25 09:01:48,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-03-25 09:01:48,576 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.7 percent of original size [2021-03-25 09:01:48,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,578 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:48,578 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:48,579 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,580 INFO L142 QuantifierPusher]: treesize reduction 162, result has 43.2 percent of original size [2021-03-25 09:01:48,582 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:01:48,582 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,583 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.7 percent of original size [2021-03-25 09:01:48,585 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:48,586 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,587 INFO L142 QuantifierPusher]: treesize reduction 38, result has 72.7 percent of original size [2021-03-25 09:01:48,587 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:48,588 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,588 INFO L142 QuantifierPusher]: treesize reduction 44, result has 57.7 percent of original size [2021-03-25 09:01:48,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:48,593 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-03-25 09:01:48,593 INFO L147 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size 17 [2021-03-25 09:01:48,594 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-25 09:01:48,594 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-25 09:01:48,595 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-25 09:01:48,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:48,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:48,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:48,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:48,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:48,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,629 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:01:48,630 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:48,630 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,631 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-25 09:01:48,631 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size [2021-03-25 09:01:48,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:48,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:48,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,662 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:48,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:48,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:48,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,664 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-25 09:01:48,664 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:48,664 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,665 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-25 09:01:48,665 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-25 09:01:48,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:48,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:48,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:48,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:48,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066429513] [2021-03-25 09:01:48,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:48,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:48,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:48,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:48,698 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 110 [2021-03-25 09:01:48,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 329 transitions, 7374 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:48,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:48,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 110 [2021-03-25 09:01:48,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:49,736 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2021-03-25 09:01:49,963 INFO L129 PetriNetUnfolder]: 305/770 cut-off events. [2021-03-25 09:01:49,963 INFO L130 PetriNetUnfolder]: For 93095/93131 co-relation queries the response was YES. [2021-03-25 09:01:49,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 770 events. 305/770 cut-off events. For 93095/93131 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5274 event pairs, 9 based on Foata normal form. 10/776 useless extension candidates. Maximal degree in co-relation 12997. Up to 446 conditions per place. [2021-03-25 09:01:49,974 INFO L132 encePairwiseOnDemand]: 70/110 looper letters, 151 selfloop transitions, 192 changer transitions 1/348 dead transitions. [2021-03-25 09:01:49,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 348 transitions, 9001 flow [2021-03-25 09:01:49,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:01:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:01:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 219 transitions. [2021-03-25 09:01:49,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15314685314685314 [2021-03-25 09:01:49,975 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 219 transitions. [2021-03-25 09:01:49,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 219 transitions. [2021-03-25 09:01:49,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:49,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 219 transitions. [2021-03-25 09:01:49,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 13 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:49,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:49,976 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 110.0) internal successors, (1540), 14 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:49,977 INFO L185 Difference]: Start difference. First operand has 368 places, 329 transitions, 7374 flow. Second operand 13 states and 219 transitions. [2021-03-25 09:01:49,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 348 transitions, 9001 flow [2021-03-25 09:01:50,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 348 transitions, 8934 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:50,383 INFO L241 Difference]: Finished difference. Result has 377 places, 336 transitions, 8151 flow [2021-03-25 09:01:50,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=7307, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8151, PETRI_PLACES=377, PETRI_TRANSITIONS=336} [2021-03-25 09:01:50,383 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 361 predicate places. [2021-03-25 09:01:50,383 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:50,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 377 places, 336 transitions, 8151 flow [2021-03-25 09:01:50,383 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 377 places, 336 transitions, 8151 flow [2021-03-25 09:01:50,386 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 376 places, 336 transitions, 8151 flow [2021-03-25 09:01:50,507 INFO L129 PetriNetUnfolder]: 302/766 cut-off events. [2021-03-25 09:01:50,507 INFO L130 PetriNetUnfolder]: For 96076/96156 co-relation queries the response was YES. [2021-03-25 09:01:50,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12841 conditions, 766 events. 302/766 cut-off events. For 96076/96156 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5287 event pairs, 15 based on Foata normal form. 1/763 useless extension candidates. Maximal degree in co-relation 12596. Up to 442 conditions per place. [2021-03-25 09:01:50,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:01:50,825 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:50,825 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:01:50,825 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 442 [2021-03-25 09:01:50,825 INFO L480 AbstractCegarLoop]: Abstraction has has 376 places, 336 transitions, 8161 flow [2021-03-25 09:01:50,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:50,826 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:50,826 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:51,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable455 [2021-03-25 09:01:51,026 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:51,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:51,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1465821107, now seen corresponding path program 1 times [2021-03-25 09:01:51,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:51,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216812423] [2021-03-25 09:01:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:51,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:51,054 INFO L142 QuantifierPusher]: treesize reduction 123, result has 15.2 percent of original size [2021-03-25 09:01:51,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:51,075 INFO L142 QuantifierPusher]: treesize reduction 156, result has 25.7 percent of original size [2021-03-25 09:01:51,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:51,107 INFO L142 QuantifierPusher]: treesize reduction 105, result has 37.5 percent of original size [2021-03-25 09:01:51,108 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.3 percent of original size 55 [2021-03-25 09:01:51,147 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-25 09:01:51,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:01:51,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:51,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:51,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216812423] [2021-03-25 09:01:51,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195270642] [2021-03-25 09:01:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:51,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:01:51,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:51,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:51,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:51,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:51,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:51,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,231 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:51,231 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,232 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:51,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:51,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:01:51,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:01:51,250 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-25 09:01:51,250 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:51,251 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,251 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:51,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:51,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:51,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 86.6 percent of original size [2021-03-25 09:01:51,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:01:51,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:51,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:01:51,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:51,283 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,284 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:51,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:51,313 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.8 percent of original size [2021-03-25 09:01:51,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:51,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-25 09:01:51,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:51,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-25 09:01:51,318 INFO L142 QuantifierPusher]: treesize reduction 1255, result has 13.0 percent of original size [2021-03-25 09:01:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,320 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-25 09:01:51,320 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:01:51,321 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,336 INFO L142 QuantifierPusher]: treesize reduction 34, result has 75.0 percent of original size [2021-03-25 09:01:51,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:01:51,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-25 09:01:51,338 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:51,339 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,339 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,340 INFO L142 QuantifierPusher]: treesize reduction 66, result has 64.3 percent of original size [2021-03-25 09:01:51,343 INFO L147 QuantifierPusher]: treesize reduction 31, result has 68.7 percent of original size 68 [2021-03-25 09:01:51,344 INFO L147 QuantifierPusher]: treesize reduction 31, result has 75.4 percent of original size 95 [2021-03-25 09:01:51,345 INFO L142 QuantifierPusher]: treesize reduction 31, result has 75.4 percent of original size [2021-03-25 09:01:51,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:01:51,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:01:51,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:01:51,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:01:51,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:01:51,428 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.4 percent of original size [2021-03-25 09:01:51,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:51,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:01:51,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-03-25 09:01:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-03-25 09:01:51,433 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.2 percent of original size [2021-03-25 09:01:51,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,435 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:51,435 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:51,436 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,436 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,436 INFO L142 QuantifierPusher]: treesize reduction 100, result has 58.7 percent of original size [2021-03-25 09:01:51,437 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:51,437 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,438 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.7 percent of original size [2021-03-25 09:01:51,438 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:51,438 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,439 INFO L142 QuantifierPusher]: treesize reduction 80, result has 47.0 percent of original size [2021-03-25 09:01:51,440 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:51,440 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,441 INFO L142 QuantifierPusher]: treesize reduction 31, result has 47.5 percent of original size [2021-03-25 09:01:51,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:01:51,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:51,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:01:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:51,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:51,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:51,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:51,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:51,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,472 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-25 09:01:51,472 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:51,472 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:51,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:51,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:51,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:51,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127112362] [2021-03-25 09:01:51,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:51,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:51,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:51,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:51,497 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 112 [2021-03-25 09:01:51,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 336 transitions, 8161 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:51,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:51,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 112 [2021-03-25 09:01:51,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:52,147 INFO L129 PetriNetUnfolder]: 302/769 cut-off events. [2021-03-25 09:01:52,148 INFO L130 PetriNetUnfolder]: For 97796/97832 co-relation queries the response was YES. [2021-03-25 09:01:52,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13661 conditions, 769 events. 302/769 cut-off events. For 97796/97832 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5269 event pairs, 15 based on Foata normal form. 11/776 useless extension candidates. Maximal degree in co-relation 13407. Up to 621 conditions per place. [2021-03-25 09:01:52,158 INFO L132 encePairwiseOnDemand]: 92/112 looper letters, 302 selfloop transitions, 31 changer transitions 1/338 dead transitions. [2021-03-25 09:01:52,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 338 transitions, 8993 flow [2021-03-25 09:01:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:52,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2021-03-25 09:01:52,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15714285714285714 [2021-03-25 09:01:52,161 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 176 transitions. [2021-03-25 09:01:52,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 176 transitions. [2021-03-25 09:01:52,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:52,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 176 transitions. [2021-03-25 09:01:52,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 17.6) internal successors, (176), 10 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:52,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:52,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 112.0) internal successors, (1232), 11 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:52,162 INFO L185 Difference]: Start difference. First operand has 376 places, 336 transitions, 8161 flow. Second operand 10 states and 176 transitions. [2021-03-25 09:01:52,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 338 transitions, 8993 flow [2021-03-25 09:01:52,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 338 transitions, 8354 flow, removed 216 selfloop flow, removed 6 redundant places. [2021-03-25 09:01:52,603 INFO L241 Difference]: Finished difference. Result has 381 places, 334 transitions, 7602 flow [2021-03-25 09:01:52,603 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=112, PETRI_DIFFERENCE_MINUEND_FLOW=7456, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7602, PETRI_PLACES=381, PETRI_TRANSITIONS=334} [2021-03-25 09:01:52,603 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 365 predicate places. [2021-03-25 09:01:52,603 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:52,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 334 transitions, 7602 flow [2021-03-25 09:01:52,603 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 334 transitions, 7602 flow [2021-03-25 09:01:52,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 334 transitions, 7602 flow [2021-03-25 09:01:52,725 INFO L129 PetriNetUnfolder]: 299/759 cut-off events. [2021-03-25 09:01:52,725 INFO L130 PetriNetUnfolder]: For 95489/95502 co-relation queries the response was YES. [2021-03-25 09:01:52,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12594 conditions, 759 events. 299/759 cut-off events. For 95489/95502 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5276 event pairs, 15 based on Foata normal form. 9/764 useless extension candidates. Maximal degree in co-relation 12350. Up to 433 conditions per place. [2021-03-25 09:01:52,737 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 09:01:53,163 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-25 09:01:53,163 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 09:01:53,163 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 560 [2021-03-25 09:01:53,163 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 333 transitions, 7612 flow [2021-03-25 09:01:53,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:53,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:53,163 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:53,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable464 [2021-03-25 09:01:53,364 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:53,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1806565307, now seen corresponding path program 1 times [2021-03-25 09:01:53,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:53,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238195046] [2021-03-25 09:01:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:53,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:53,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:53,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:53,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:53,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:53,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:53,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238195046] [2021-03-25 09:01:53,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:01:53,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 09:01:53,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444670367] [2021-03-25 09:01:53,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 09:01:53,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:53,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 09:01:53,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 09:01:53,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 114 [2021-03-25 09:01:53,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 333 transitions, 7612 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:53,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:53,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 114 [2021-03-25 09:01:53,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:53,593 INFO L129 PetriNetUnfolder]: 291/750 cut-off events. [2021-03-25 09:01:53,594 INFO L130 PetriNetUnfolder]: For 98287/98345 co-relation queries the response was YES. [2021-03-25 09:01:53,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12870 conditions, 750 events. 291/750 cut-off events. For 98287/98345 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5160 event pairs, 16 based on Foata normal form. 12/758 useless extension candidates. Maximal degree in co-relation 12627. Up to 427 conditions per place. [2021-03-25 09:01:53,603 INFO L132 encePairwiseOnDemand]: 100/114 looper letters, 111 selfloop transitions, 32 changer transitions 1/325 dead transitions. [2021-03-25 09:01:53,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 325 transitions, 7821 flow [2021-03-25 09:01:53,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 09:01:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 09:01:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2021-03-25 09:01:53,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2021-03-25 09:01:53,604 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 272 transitions. [2021-03-25 09:01:53,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 272 transitions. [2021-03-25 09:01:53,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:53,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 272 transitions. [2021-03-25 09:01:53,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:53,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:53,605 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:53,605 INFO L185 Difference]: Start difference. First operand has 379 places, 333 transitions, 7612 flow. Second operand 4 states and 272 transitions. [2021-03-25 09:01:53,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 325 transitions, 7821 flow [2021-03-25 09:01:54,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 325 transitions, 7613 flow, removed 55 selfloop flow, removed 12 redundant places. [2021-03-25 09:01:54,026 INFO L241 Difference]: Finished difference. Result has 371 places, 323 transitions, 7384 flow [2021-03-25 09:01:54,026 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7225, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=7384, PETRI_PLACES=371, PETRI_TRANSITIONS=323} [2021-03-25 09:01:54,026 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 355 predicate places. [2021-03-25 09:01:54,026 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:54,026 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 371 places, 323 transitions, 7384 flow [2021-03-25 09:01:54,026 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 371 places, 323 transitions, 7384 flow [2021-03-25 09:01:54,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 370 places, 323 transitions, 7384 flow [2021-03-25 09:01:54,148 INFO L129 PetriNetUnfolder]: 291/750 cut-off events. [2021-03-25 09:01:54,148 INFO L130 PetriNetUnfolder]: For 93388/93404 co-relation queries the response was YES. [2021-03-25 09:01:54,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12429 conditions, 750 events. 291/750 cut-off events. For 93388/93404 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5256 event pairs, 15 based on Foata normal form. 7/753 useless extension candidates. Maximal degree in co-relation 12185. Up to 425 conditions per place. [2021-03-25 09:01:54,160 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-25 09:01:54,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:54,173 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:54,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 147 [2021-03-25 09:01:54,173 INFO L480 AbstractCegarLoop]: Abstraction has has 370 places, 323 transitions, 7384 flow [2021-03-25 09:01:54,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:54,173 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:54,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-03-25 09:01:54,173 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:54,173 INFO L82 PathProgramCache]: Analyzing trace with hash 168388995, now seen corresponding path program 1 times [2021-03-25 09:01:54,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:54,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980924560] [2021-03-25 09:01:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:54,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:54,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:54,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:54,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:54,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:54,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:54,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:54,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980924560] [2021-03-25 09:01:54,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:01:54,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 09:01:54,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835710676] [2021-03-25 09:01:54,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 09:01:54,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:54,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 09:01:54,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 09:01:54,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 114 [2021-03-25 09:01:54,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 323 transitions, 7384 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:54,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 114 [2021-03-25 09:01:54,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:54,382 INFO L129 PetriNetUnfolder]: 297/759 cut-off events. [2021-03-25 09:01:54,382 INFO L130 PetriNetUnfolder]: For 100356/100413 co-relation queries the response was YES. [2021-03-25 09:01:54,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13157 conditions, 759 events. 297/759 cut-off events. For 100356/100413 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5208 event pairs, 15 based on Foata normal form. 6/761 useless extension candidates. Maximal degree in co-relation 12909. Up to 437 conditions per place. [2021-03-25 09:01:54,392 INFO L132 encePairwiseOnDemand]: 106/114 looper letters, 155 selfloop transitions, 25 changer transitions 1/327 dead transitions. [2021-03-25 09:01:54,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 327 transitions, 8077 flow [2021-03-25 09:01:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 09:01:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 09:01:54,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2021-03-25 09:01:54,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6637426900584795 [2021-03-25 09:01:54,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 227 transitions. [2021-03-25 09:01:54,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 227 transitions. [2021-03-25 09:01:54,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:54,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 227 transitions. [2021-03-25 09:01:54,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,394 INFO L185 Difference]: Start difference. First operand has 370 places, 323 transitions, 7384 flow. Second operand 3 states and 227 transitions. [2021-03-25 09:01:54,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 327 transitions, 8077 flow [2021-03-25 09:01:54,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 327 transitions, 8053 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 09:01:54,834 INFO L241 Difference]: Finished difference. Result has 372 places, 322 transitions, 7501 flow [2021-03-25 09:01:54,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7346, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=7501, PETRI_PLACES=372, PETRI_TRANSITIONS=322} [2021-03-25 09:01:54,835 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 356 predicate places. [2021-03-25 09:01:54,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:54,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 322 transitions, 7501 flow [2021-03-25 09:01:54,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 322 transitions, 7501 flow [2021-03-25 09:01:54,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 371 places, 322 transitions, 7501 flow [2021-03-25 09:01:54,972 INFO L129 PetriNetUnfolder]: 297/758 cut-off events. [2021-03-25 09:01:54,973 INFO L130 PetriNetUnfolder]: For 99594/99634 co-relation queries the response was YES. [2021-03-25 09:01:54,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13022 conditions, 758 events. 297/758 cut-off events. For 99594/99634 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5291 event pairs, 16 based on Foata normal form. 1/757 useless extension candidates. Maximal degree in co-relation 12778. Up to 438 conditions per place. [2021-03-25 09:01:54,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-25 09:01:54,996 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:54,996 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:54,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 162 [2021-03-25 09:01:54,997 INFO L480 AbstractCegarLoop]: Abstraction has has 371 places, 322 transitions, 7501 flow [2021-03-25 09:01:54,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:54,997 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:54,997 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:54,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-03-25 09:01:54,997 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:54,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:54,997 INFO L82 PathProgramCache]: Analyzing trace with hash -421584176, now seen corresponding path program 2 times [2021-03-25 09:01:54,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:54,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836888411] [2021-03-25 09:01:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:55,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:01:55,033 INFO L142 QuantifierPusher]: treesize reduction 526, result has 36.1 percent of original size [2021-03-25 09:01:55,034 INFO L147 QuantifierPusher]: treesize reduction 143, result has 51.9 percent of original size 154 [2021-03-25 09:01:55,117 INFO L142 QuantifierPusher]: treesize reduction 847, result has 18.3 percent of original size [2021-03-25 09:01:55,118 INFO L147 QuantifierPusher]: treesize reduction 82, result has 56.8 percent of original size 108 [2021-03-25 09:01:55,190 INFO L142 QuantifierPusher]: treesize reduction 96, result has 56.6 percent of original size [2021-03-25 09:01:55,190 INFO L147 QuantifierPusher]: treesize reduction 47, result has 62.4 percent of original size 78 [2021-03-25 09:01:55,249 INFO L142 QuantifierPusher]: treesize reduction 51, result has 61.4 percent of original size [2021-03-25 09:01:55,250 INFO L147 QuantifierPusher]: treesize reduction 25, result has 69.1 percent of original size 56 [2021-03-25 09:01:55,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:55,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836888411] [2021-03-25 09:01:55,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648310894] [2021-03-25 09:01:55,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:55,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:01:55,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:01:55,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-25 09:01:55,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:55,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:55,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:55,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:55,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:55,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,343 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:55,345 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,345 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,346 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:55,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:55,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:55,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:55,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:01:55,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:01:55,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:01:55,365 INFO L142 QuantifierPusher]: treesize reduction 256, result has 18.5 percent of original size [2021-03-25 09:01:55,365 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:55,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,366 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:55,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:01:55,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size [2021-03-25 09:01:55,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:55,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:01:55,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,402 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:55,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:01:55,404 INFO L142 QuantifierPusher]: treesize reduction 107, result has 50.2 percent of original size [2021-03-25 09:01:55,405 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-25 09:01:55,406 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-25 09:01:55,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:01:55,452 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-25 09:01:55,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:55,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:01:55,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-25 09:01:55,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 178 [2021-03-25 09:01:55,457 INFO L142 QuantifierPusher]: treesize reduction 23, result has 87.7 percent of original size [2021-03-25 09:01:55,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,458 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:55,458 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:55,459 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,460 INFO L142 QuantifierPusher]: treesize reduction 162, result has 43.2 percent of original size [2021-03-25 09:01:55,461 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:01:55,461 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,462 INFO L142 QuantifierPusher]: treesize reduction 51, result has 68.7 percent of original size [2021-03-25 09:01:55,463 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:01:55,463 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,464 INFO L142 QuantifierPusher]: treesize reduction 38, result has 72.7 percent of original size [2021-03-25 09:01:55,464 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:55,465 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,465 INFO L142 QuantifierPusher]: treesize reduction 44, result has 57.7 percent of original size [2021-03-25 09:01:55,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:55,469 INFO L147 QuantifierPusher]: treesize reduction 5, result has 73.7 percent of original size 14 [2021-03-25 09:01:55,470 INFO L147 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size 17 [2021-03-25 09:01:55,470 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-25 09:01:55,471 INFO L147 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size 30 [2021-03-25 09:01:55,471 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-25 09:01:55,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:01:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:55,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:55,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:55,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-25 09:01:55,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,500 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:01:55,500 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:55,501 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,501 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size 28 [2021-03-25 09:01:55,501 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.7 percent of original size [2021-03-25 09:01:55,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:55,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:55,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:01:55,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:55,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:55,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:55,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:01:55,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,531 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2021-03-25 09:01:55,531 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:55,531 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,532 INFO L147 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size 26 [2021-03-25 09:01:55,532 INFO L142 QuantifierPusher]: treesize reduction -2, result has 108.3 percent of original size [2021-03-25 09:01:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:55,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:55,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:55,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:55,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:55,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:01:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:55,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:55,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:55,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234883803] [2021-03-25 09:01:55,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:55,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:55,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:55,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-25 09:01:55,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 322 transitions, 7501 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:55,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:55,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-25 09:01:55,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:55,986 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2021-03-25 09:01:56,564 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-03-25 09:01:56,701 INFO L129 PetriNetUnfolder]: 300/766 cut-off events. [2021-03-25 09:01:56,701 INFO L130 PetriNetUnfolder]: For 101801/101809 co-relation queries the response was YES. [2021-03-25 09:01:56,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13784 conditions, 766 events. 300/766 cut-off events. For 101801/101809 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5282 event pairs, 4 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 13531. Up to 455 conditions per place. [2021-03-25 09:01:56,711 INFO L132 encePairwiseOnDemand]: 78/114 looper letters, 197 selfloop transitions, 129 changer transitions 4/334 dead transitions. [2021-03-25 09:01:56,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 334 transitions, 8568 flow [2021-03-25 09:01:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:01:56,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:01:56,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 180 transitions. [2021-03-25 09:01:56,713 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15789473684210525 [2021-03-25 09:01:56,713 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 180 transitions. [2021-03-25 09:01:56,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 180 transitions. [2021-03-25 09:01:56,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:56,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 180 transitions. [2021-03-25 09:01:56,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.0) internal successors, (180), 10 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:56,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:56,714 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 114.0) internal successors, (1254), 11 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:56,714 INFO L185 Difference]: Start difference. First operand has 371 places, 322 transitions, 7501 flow. Second operand 10 states and 180 transitions. [2021-03-25 09:01:56,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 334 transitions, 8568 flow [2021-03-25 09:01:57,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 334 transitions, 8536 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-03-25 09:01:57,140 INFO L241 Difference]: Finished difference. Result has 381 places, 321 transitions, 7738 flow [2021-03-25 09:01:57,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7483, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7738, PETRI_PLACES=381, PETRI_TRANSITIONS=321} [2021-03-25 09:01:57,141 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 365 predicate places. [2021-03-25 09:01:57,141 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:57,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 321 transitions, 7738 flow [2021-03-25 09:01:57,141 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 321 transitions, 7738 flow [2021-03-25 09:01:57,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 379 places, 321 transitions, 7738 flow [2021-03-25 09:01:57,266 INFO L129 PetriNetUnfolder]: 297/752 cut-off events. [2021-03-25 09:01:57,266 INFO L130 PetriNetUnfolder]: For 95744/95757 co-relation queries the response was YES. [2021-03-25 09:01:57,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13028 conditions, 752 events. 297/752 cut-off events. For 95744/95757 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5208 event pairs, 15 based on Foata normal form. 9/759 useless extension candidates. Maximal degree in co-relation 12779. Up to 437 conditions per place. [2021-03-25 09:01:57,278 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 09:01:57,291 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:01:57,291 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:01:57,291 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 150 [2021-03-25 09:01:57,291 INFO L480 AbstractCegarLoop]: Abstraction has has 379 places, 321 transitions, 7738 flow [2021-03-25 09:01:57,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:57,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:01:57,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:01:57,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable477 [2021-03-25 09:01:57,492 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:01:57,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:01:57,492 INFO L82 PathProgramCache]: Analyzing trace with hash -2117375880, now seen corresponding path program 1 times [2021-03-25 09:01:57,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:01:57,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539493115] [2021-03-25 09:01:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:01:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:57,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,508 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:01:57,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:01:57,513 INFO L142 QuantifierPusher]: treesize reduction 189, result has 22.2 percent of original size [2021-03-25 09:01:57,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:01:57,546 INFO L142 QuantifierPusher]: treesize reduction 201, result has 25.8 percent of original size [2021-03-25 09:01:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:01:57,594 INFO L142 QuantifierPusher]: treesize reduction 1954, result has 11.3 percent of original size [2021-03-25 09:01:57,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-03-25 09:01:57,675 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:01:57,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:01:57,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:01:57,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:57,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539493115] [2021-03-25 09:01:57,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731445697] [2021-03-25 09:01:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:01:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:01:57,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:01:57,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:01:57,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:01:57,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:57,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:57,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:01:57,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,762 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,764 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,764 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:57,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:57,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:57,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:57,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:01:57,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:57,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:57,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,784 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,785 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,785 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:01:57,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:01:57,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:57,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:01:57,826 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size [2021-03-25 09:01:57,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:57,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:01:57,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:57,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:01:57,830 INFO L142 QuantifierPusher]: treesize reduction 107, result has 46.8 percent of original size [2021-03-25 09:01:57,831 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-25 09:01:57,832 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-25 09:01:57,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 09:01:57,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:01:57,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:57,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,884 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:01:57,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:01:57,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,887 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:01:57,887 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,888 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,888 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:01:57,888 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,890 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,891 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-25 09:01:57,891 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,892 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,892 INFO L142 QuantifierPusher]: treesize reduction 55, result has 54.5 percent of original size [2021-03-25 09:01:57,893 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:01:57,893 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,894 INFO L142 QuantifierPusher]: treesize reduction 34, result has 45.2 percent of original size [2021-03-25 09:01:57,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:01:57,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:01:57,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:57,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:01:57,936 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-25 09:01:57,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:01:57,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-25 09:01:57,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-25 09:01:57,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-25 09:01:57,941 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-25 09:01:57,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,942 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:01:57,942 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:57,943 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,944 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-25 09:01:57,945 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:01:57,945 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,946 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-25 09:01:57,947 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:01:57,947 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,948 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-25 09:01:57,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:01:57,951 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-25 09:01:57,952 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:01:57,952 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:01:57,953 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-25 09:01:57,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:01:57,985 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:01:57,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:57,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:57,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:01:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:01:57,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:01:57,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,991 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:01:57,991 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:57,992 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,993 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:01:57,993 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:01:57,994 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:01:57,994 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:01:57,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:57,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:57,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:57,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:01:58,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:01:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:01:58,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:01:58,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:01:58,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260997397] [2021-03-25 09:01:58,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:01:58,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:01:58,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:01:58,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:01:58,024 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 114 [2021-03-25 09:01:58,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 321 transitions, 7738 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:58,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:01:58,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 114 [2021-03-25 09:01:58,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:01:59,165 INFO L129 PetriNetUnfolder]: 299/770 cut-off events. [2021-03-25 09:01:59,166 INFO L130 PetriNetUnfolder]: For 99184/99192 co-relation queries the response was YES. [2021-03-25 09:01:59,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13975 conditions, 770 events. 299/770 cut-off events. For 99184/99192 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5341 event pairs, 15 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 13717. Up to 625 conditions per place. [2021-03-25 09:01:59,176 INFO L132 encePairwiseOnDemand]: 101/114 looper letters, 289 selfloop transitions, 43 changer transitions 1/337 dead transitions. [2021-03-25 09:01:59,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 337 transitions, 9174 flow [2021-03-25 09:01:59,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:01:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:01:59,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2021-03-25 09:01:59,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1440058479532164 [2021-03-25 09:01:59,177 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 197 transitions. [2021-03-25 09:01:59,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 197 transitions. [2021-03-25 09:01:59,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:01:59,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 197 transitions. [2021-03-25 09:01:59,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 12 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:59,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:59,178 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 114.0) internal successors, (1482), 13 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:01:59,178 INFO L185 Difference]: Start difference. First operand has 379 places, 321 transitions, 7738 flow. Second operand 12 states and 197 transitions. [2021-03-25 09:01:59,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 337 transitions, 9174 flow [2021-03-25 09:01:59,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 337 transitions, 9133 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-25 09:01:59,639 INFO L241 Difference]: Finished difference. Result has 388 places, 332 transitions, 8385 flow [2021-03-25 09:01:59,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=7701, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8385, PETRI_PLACES=388, PETRI_TRANSITIONS=332} [2021-03-25 09:01:59,640 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 372 predicate places. [2021-03-25 09:01:59,640 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:01:59,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 332 transitions, 8385 flow [2021-03-25 09:01:59,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 332 transitions, 8385 flow [2021-03-25 09:01:59,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 332 transitions, 8385 flow [2021-03-25 09:01:59,804 INFO L129 PetriNetUnfolder]: 296/760 cut-off events. [2021-03-25 09:01:59,805 INFO L130 PetriNetUnfolder]: For 99623/99632 co-relation queries the response was YES. [2021-03-25 09:01:59,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13340 conditions, 760 events. 296/760 cut-off events. For 99623/99632 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5318 event pairs, 14 based on Foata normal form. 4/762 useless extension candidates. Maximal degree in co-relation 13086. Up to 441 conditions per place. [2021-03-25 09:01:59,818 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:00,696 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:02:00,696 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 09:02:00,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1056 [2021-03-25 09:02:00,696 INFO L480 AbstractCegarLoop]: Abstraction has has 385 places, 330 transitions, 8452 flow [2021-03-25 09:02:00,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:00,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:00,697 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:00,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable486 [2021-03-25 09:02:00,897 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:00,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:00,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1817418226, now seen corresponding path program 2 times [2021-03-25 09:02:00,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:00,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232285305] [2021-03-25 09:02:00,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:00,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:00,910 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:02:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:00,915 INFO L142 QuantifierPusher]: treesize reduction 199, result has 18.8 percent of original size [2021-03-25 09:02:00,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:02:00,945 INFO L142 QuantifierPusher]: treesize reduction 201, result has 26.1 percent of original size [2021-03-25 09:02:00,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 09:02:00,975 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:02:00,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:00,993 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:02:00,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:02:01,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:01,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232285305] [2021-03-25 09:02:01,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120594043] [2021-03-25 09:02:01,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:01,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:01,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:01,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-25 09:02:01,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:01,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:01,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:01,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:01,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:01,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,057 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:01,066 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,067 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:01,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:01,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:01,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:01,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:01,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:02:01,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,085 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:01,086 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,086 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:01,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:01,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:01,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:01,117 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-25 09:02:01,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:01,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:02:01,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:02:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-25 09:02:01,122 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-25 09:02:01,123 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-25 09:02:01,144 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-25 09:02:01,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-25 09:02:01,278 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-25 09:02:01,280 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-25 09:02:01,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:01,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-25 09:02:01,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-25 09:02:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:02:01,284 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-25 09:02:01,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,285 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:01,285 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:01,286 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,288 INFO L142 QuantifierPusher]: treesize reduction 240, result has 36.7 percent of original size [2021-03-25 09:02:01,289 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:02:01,289 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,290 INFO L142 QuantifierPusher]: treesize reduction 81, result has 61.2 percent of original size [2021-03-25 09:02:01,290 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:01,290 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,291 INFO L142 QuantifierPusher]: treesize reduction 127, result has 27.0 percent of original size [2021-03-25 09:02:01,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:01,294 INFO L147 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size 29 [2021-03-25 09:02:01,295 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-25 09:02:01,295 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-25 09:02:01,295 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-03-25 09:02:01,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:02:01,330 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:02:01,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:01,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:01,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:01,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:02:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,335 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:02:01,335 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:02:01,336 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,337 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:02:01,337 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:02:01,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,338 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:02:01,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:01,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:01,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:01,362 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:02:01,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:01,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:01,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:02:01,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,367 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:02:01,367 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:01,367 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,368 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:02:01,368 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:01,368 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,368 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:01,369 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-25 09:02:01,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:01,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:01,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:01,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:02:01,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718644522] [2021-03-25 09:02:01,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:02:01,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:01,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:02:01,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:02:01,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 120 [2021-03-25 09:02:01,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 330 transitions, 8452 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:01,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:01,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 120 [2021-03-25 09:02:01,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:02,822 INFO L129 PetriNetUnfolder]: 309/806 cut-off events. [2021-03-25 09:02:02,822 INFO L130 PetriNetUnfolder]: For 108455/108463 co-relation queries the response was YES. [2021-03-25 09:02:02,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14920 conditions, 806 events. 309/806 cut-off events. For 108455/108463 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5705 event pairs, 15 based on Foata normal form. 6/810 useless extension candidates. Maximal degree in co-relation 14657. Up to 626 conditions per place. [2021-03-25 09:02:02,834 INFO L132 encePairwiseOnDemand]: 101/120 looper letters, 297 selfloop transitions, 57 changer transitions 6/364 dead transitions. [2021-03-25 09:02:02,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 364 transitions, 10695 flow [2021-03-25 09:02:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-25 09:02:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-25 09:02:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 307 transitions. [2021-03-25 09:02:02,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12791666666666668 [2021-03-25 09:02:02,835 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 307 transitions. [2021-03-25 09:02:02,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 307 transitions. [2021-03-25 09:02:02,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:02,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 307 transitions. [2021-03-25 09:02:02,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 15.35) internal successors, (307), 20 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:02,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 120.0) internal successors, (2520), 21 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:02,837 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 120.0) internal successors, (2520), 21 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:02,837 INFO L185 Difference]: Start difference. First operand has 385 places, 330 transitions, 8452 flow. Second operand 20 states and 307 transitions. [2021-03-25 09:02:02,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 364 transitions, 10695 flow [2021-03-25 09:02:03,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 364 transitions, 10403 flow, removed 143 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:03,321 INFO L241 Difference]: Finished difference. Result has 409 places, 348 transitions, 9324 flow [2021-03-25 09:02:03,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=7947, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9324, PETRI_PLACES=409, PETRI_TRANSITIONS=348} [2021-03-25 09:02:03,322 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 393 predicate places. [2021-03-25 09:02:03,322 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:03,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 348 transitions, 9324 flow [2021-03-25 09:02:03,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 348 transitions, 9324 flow [2021-03-25 09:02:03,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 405 places, 348 transitions, 9324 flow [2021-03-25 09:02:03,463 INFO L129 PetriNetUnfolder]: 305/791 cut-off events. [2021-03-25 09:02:03,463 INFO L130 PetriNetUnfolder]: For 108053/108059 co-relation queries the response was YES. [2021-03-25 09:02:03,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14178 conditions, 791 events. 305/791 cut-off events. For 108053/108059 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5614 event pairs, 12 based on Foata normal form. 6/795 useless extension candidates. Maximal degree in co-relation 13937. Up to 456 conditions per place. [2021-03-25 09:02:03,476 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:04,652 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:04,652 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 09:02:04,652 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1330 [2021-03-25 09:02:04,652 INFO L480 AbstractCegarLoop]: Abstraction has has 404 places, 347 transitions, 9367 flow [2021-03-25 09:02:04,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:04,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:04,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:04,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable498 [2021-03-25 09:02:04,856 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:04,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:04,856 INFO L82 PathProgramCache]: Analyzing trace with hash -488589979, now seen corresponding path program 1 times [2021-03-25 09:02:04,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:04,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134034051] [2021-03-25 09:02:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:04,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:04,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:04,867 INFO L142 QuantifierPusher]: treesize reduction 69, result has 8.0 percent of original size [2021-03-25 09:02:04,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:04,873 INFO L142 QuantifierPusher]: treesize reduction 213, result has 26.3 percent of original size [2021-03-25 09:02:04,873 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.5 percent of original size 68 [2021-03-25 09:02:04,919 INFO L142 QuantifierPusher]: treesize reduction 95, result has 15.2 percent of original size [2021-03-25 09:02:04,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:04,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:04,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:04,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134034051] [2021-03-25 09:02:04,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:04,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:02:04,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750793112] [2021-03-25 09:02:04,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 09:02:04,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:04,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 09:02:04,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 09:02:04,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-25 09:02:04,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 347 transitions, 9367 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:04,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:04,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-25 09:02:04,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:05,305 INFO L129 PetriNetUnfolder]: 306/780 cut-off events. [2021-03-25 09:02:05,305 INFO L130 PetriNetUnfolder]: For 110210/110218 co-relation queries the response was YES. [2021-03-25 09:02:05,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 780 events. 306/780 cut-off events. For 110210/110218 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5386 event pairs, 13 based on Foata normal form. 1/778 useless extension candidates. Maximal degree in co-relation 14482. Up to 611 conditions per place. [2021-03-25 09:02:05,318 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 309 selfloop transitions, 30 changer transitions 1/345 dead transitions. [2021-03-25 09:02:05,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 345 transitions, 9910 flow [2021-03-25 09:02:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 09:02:05,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 09:02:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2021-03-25 09:02:05,319 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2031496062992126 [2021-03-25 09:02:05,319 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 129 transitions. [2021-03-25 09:02:05,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 129 transitions. [2021-03-25 09:02:05,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:05,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 129 transitions. [2021-03-25 09:02:05,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:05,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:05,320 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:05,320 INFO L185 Difference]: Start difference. First operand has 404 places, 347 transitions, 9367 flow. Second operand 5 states and 129 transitions. [2021-03-25 09:02:05,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 345 transitions, 9910 flow [2021-03-25 09:02:05,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 345 transitions, 9138 flow, removed 368 selfloop flow, removed 8 redundant places. [2021-03-25 09:02:05,913 INFO L241 Difference]: Finished difference. Result has 398 places, 342 transitions, 8392 flow [2021-03-25 09:02:05,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8356, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=8392, PETRI_PLACES=398, PETRI_TRANSITIONS=342} [2021-03-25 09:02:05,913 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 382 predicate places. [2021-03-25 09:02:05,914 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:05,914 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 398 places, 342 transitions, 8392 flow [2021-03-25 09:02:05,914 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 398 places, 342 transitions, 8392 flow [2021-03-25 09:02:05,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 342 transitions, 8392 flow [2021-03-25 09:02:06,051 INFO L129 PetriNetUnfolder]: 303/774 cut-off events. [2021-03-25 09:02:06,051 INFO L130 PetriNetUnfolder]: For 101041/101047 co-relation queries the response was YES. [2021-03-25 09:02:06,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13450 conditions, 774 events. 303/774 cut-off events. For 101041/101047 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5395 event pairs, 13 based on Foata normal form. 6/777 useless extension candidates. Maximal degree in co-relation 13189. Up to 440 conditions per place. [2021-03-25 09:02:06,071 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:06,092 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:06,092 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:06,092 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-03-25 09:02:06,092 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 342 transitions, 8392 flow [2021-03-25 09:02:06,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:06,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:06,092 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:06,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-03-25 09:02:06,092 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:06,093 INFO L82 PathProgramCache]: Analyzing trace with hash -620414296, now seen corresponding path program 4 times [2021-03-25 09:02:06,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:06,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567248310] [2021-03-25 09:02:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:06,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:06,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:06,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:06,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:06,106 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:02:06,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:06,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:06,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:06,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:06,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:06,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:06,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:06,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567248310] [2021-03-25 09:02:06,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:06,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:06,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096411275] [2021-03-25 09:02:06,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:06,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:06,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:06,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:06,131 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-25 09:02:06,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 342 transitions, 8392 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:06,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:06,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-25 09:02:06,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:06,468 INFO L129 PetriNetUnfolder]: 305/766 cut-off events. [2021-03-25 09:02:06,468 INFO L130 PetriNetUnfolder]: For 102877/102885 co-relation queries the response was YES. [2021-03-25 09:02:06,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14079 conditions, 766 events. 305/766 cut-off events. For 102877/102885 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5198 event pairs, 14 based on Foata normal form. 2/765 useless extension candidates. Maximal degree in co-relation 13809. Up to 624 conditions per place. [2021-03-25 09:02:06,479 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 326 selfloop transitions, 12 changer transitions 1/344 dead transitions. [2021-03-25 09:02:06,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 344 transitions, 9235 flow [2021-03-25 09:02:06,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:06,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2021-03-25 09:02:06,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.19028871391076116 [2021-03-25 09:02:06,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 145 transitions. [2021-03-25 09:02:06,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 145 transitions. [2021-03-25 09:02:06,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:06,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 145 transitions. [2021-03-25 09:02:06,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:06,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:06,481 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:06,481 INFO L185 Difference]: Start difference. First operand has 395 places, 342 transitions, 8392 flow. Second operand 6 states and 145 transitions. [2021-03-25 09:02:06,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 344 transitions, 9235 flow [2021-03-25 09:02:06,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 344 transitions, 9122 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:06,961 INFO L241 Difference]: Finished difference. Result has 395 places, 339 transitions, 8251 flow [2021-03-25 09:02:06,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8264, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8251, PETRI_PLACES=395, PETRI_TRANSITIONS=339} [2021-03-25 09:02:06,961 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 379 predicate places. [2021-03-25 09:02:06,961 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:06,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 339 transitions, 8251 flow [2021-03-25 09:02:06,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 339 transitions, 8251 flow [2021-03-25 09:02:06,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 381 places, 339 transitions, 8251 flow [2021-03-25 09:02:07,115 INFO L129 PetriNetUnfolder]: 302/759 cut-off events. [2021-03-25 09:02:07,115 INFO L130 PetriNetUnfolder]: For 100344/100364 co-relation queries the response was YES. [2021-03-25 09:02:07,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13236 conditions, 759 events. 302/759 cut-off events. For 100344/100364 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5216 event pairs, 12 based on Foata normal form. 9/765 useless extension candidates. Maximal degree in co-relation 12975. Up to 437 conditions per place. [2021-03-25 09:02:07,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-25 09:02:07,140 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:07,140 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:07,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 09:02:07,140 INFO L480 AbstractCegarLoop]: Abstraction has has 381 places, 339 transitions, 8251 flow [2021-03-25 09:02:07,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:07,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:07,141 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:07,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-03-25 09:02:07,141 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:07,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:07,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1629550745, now seen corresponding path program 1 times [2021-03-25 09:02:07,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:07,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364377787] [2021-03-25 09:02:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:07,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,151 INFO L142 QuantifierPusher]: treesize reduction 68, result has 12.8 percent of original size [2021-03-25 09:02:07,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:02:07,158 INFO L142 QuantifierPusher]: treesize reduction 65, result has 26.1 percent of original size [2021-03-25 09:02:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:07,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:07,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:07,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364377787] [2021-03-25 09:02:07,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392493318] [2021-03-25 09:02:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:07,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:07,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:07,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:07,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:07,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:07,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,227 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:07,230 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:07,231 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:07,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-25 09:02:07,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-25 09:02:07,246 INFO L142 QuantifierPusher]: treesize reduction 383, result has 13.9 percent of original size [2021-03-25 09:02:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:02:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:02:07,276 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-25 09:02:07,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:02:07,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:07,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 09:02:07,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:02:07,280 INFO L142 QuantifierPusher]: treesize reduction 109, result has 54.2 percent of original size [2021-03-25 09:02:07,280 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:07,281 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:07,281 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-25 09:02:07,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:07,283 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:07,284 INFO L142 QuantifierPusher]: treesize reduction 84, result has 44.0 percent of original size [2021-03-25 09:02:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:07,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:07,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:07,302 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:07,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:07,306 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:07,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:07,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:07,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:07,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:07,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819131689] [2021-03-25 09:02:07,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:07,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:07,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:07,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:07,311 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-25 09:02:07,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 339 transitions, 8251 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:07,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:07,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-25 09:02:07,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:07,698 INFO L129 PetriNetUnfolder]: 306/761 cut-off events. [2021-03-25 09:02:07,699 INFO L130 PetriNetUnfolder]: For 102689/102697 co-relation queries the response was YES. [2021-03-25 09:02:07,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14037 conditions, 761 events. 306/761 cut-off events. For 102689/102697 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5144 event pairs, 13 based on Foata normal form. 4/762 useless extension candidates. Maximal degree in co-relation 13767. Up to 588 conditions per place. [2021-03-25 09:02:07,709 INFO L132 encePairwiseOnDemand]: 115/127 looper letters, 299 selfloop transitions, 45 changer transitions 0/349 dead transitions. [2021-03-25 09:02:07,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 349 transitions, 9520 flow [2021-03-25 09:02:07,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:02:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:02:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2021-03-25 09:02:07,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1732283464566929 [2021-03-25 09:02:07,710 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 176 transitions. [2021-03-25 09:02:07,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 176 transitions. [2021-03-25 09:02:07,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:07,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 176 transitions. [2021-03-25 09:02:07,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:07,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:07,711 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 127.0) internal successors, (1143), 9 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:07,711 INFO L185 Difference]: Start difference. First operand has 381 places, 339 transitions, 8251 flow. Second operand 8 states and 176 transitions. [2021-03-25 09:02:07,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 349 transitions, 9520 flow [2021-03-25 09:02:08,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 349 transitions, 9400 flow, removed 36 selfloop flow, removed 8 redundant places. [2021-03-25 09:02:08,178 INFO L241 Difference]: Finished difference. Result has 380 places, 341 transitions, 8412 flow [2021-03-25 09:02:08,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8119, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8412, PETRI_PLACES=380, PETRI_TRANSITIONS=341} [2021-03-25 09:02:08,178 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 364 predicate places. [2021-03-25 09:02:08,178 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:08,178 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 341 transitions, 8412 flow [2021-03-25 09:02:08,178 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 341 transitions, 8412 flow [2021-03-25 09:02:08,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 341 transitions, 8412 flow [2021-03-25 09:02:08,305 INFO L129 PetriNetUnfolder]: 303/756 cut-off events. [2021-03-25 09:02:08,305 INFO L130 PetriNetUnfolder]: For 96463/96479 co-relation queries the response was YES. [2021-03-25 09:02:08,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13128 conditions, 756 events. 303/756 cut-off events. For 96463/96479 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5151 event pairs, 13 based on Foata normal form. 7/760 useless extension candidates. Maximal degree in co-relation 12869. Up to 438 conditions per place. [2021-03-25 09:02:08,317 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 09:02:08,331 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:08,331 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:08,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 153 [2021-03-25 09:02:08,332 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 341 transitions, 8412 flow [2021-03-25 09:02:08,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:08,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:08,332 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:08,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable510 [2021-03-25 09:02:08,532 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:08,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:08,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1054692538, now seen corresponding path program 1 times [2021-03-25 09:02:08,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:08,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439441605] [2021-03-25 09:02:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:08,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:08,550 INFO L142 QuantifierPusher]: treesize reduction 2139, result has 2.1 percent of original size [2021-03-25 09:02:08,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:02:08,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:08,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:08,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439441605] [2021-03-25 09:02:08,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075503955] [2021-03-25 09:02:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:08,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:08,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:08,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:08,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:08,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:08,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:08,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:08,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,623 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:02:08,623 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:02:08,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:08,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-25 09:02:08,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:02:08,626 INFO L142 QuantifierPusher]: treesize reduction 383, result has 12.8 percent of original size [2021-03-25 09:02:08,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:08,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:08,650 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.9 percent of original size [2021-03-25 09:02:08,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-03-25 09:02:08,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:08,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 485 [2021-03-25 09:02:08,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 486 [2021-03-25 09:02:08,654 INFO L142 QuantifierPusher]: treesize reduction 659, result has 16.4 percent of original size [2021-03-25 09:02:08,654 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:08,655 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:08,655 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-25 09:02:08,656 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:08,656 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,656 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:08,657 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-25 09:02:08,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:08,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:08,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:08,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:08,675 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:08,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:08,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:08,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:08,677 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:08,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:08,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:08,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:02:08,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499295437] [2021-03-25 09:02:08,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:02:08,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:08,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:02:08,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:02:08,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 127 [2021-03-25 09:02:08,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 341 transitions, 8412 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:08,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:08,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 127 [2021-03-25 09:02:08,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:09,137 INFO L129 PetriNetUnfolder]: 313/782 cut-off events. [2021-03-25 09:02:09,137 INFO L130 PetriNetUnfolder]: For 103633/103641 co-relation queries the response was YES. [2021-03-25 09:02:09,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14492 conditions, 782 events. 313/782 cut-off events. For 103633/103641 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5335 event pairs, 14 based on Foata normal form. 4/783 useless extension candidates. Maximal degree in co-relation 14224. Up to 622 conditions per place. [2021-03-25 09:02:09,154 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 328 selfloop transitions, 22 changer transitions 0/355 dead transitions. [2021-03-25 09:02:09,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 355 transitions, 10009 flow [2021-03-25 09:02:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:02:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:02:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 203 transitions. [2021-03-25 09:02:09,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15984251968503937 [2021-03-25 09:02:09,156 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 203 transitions. [2021-03-25 09:02:09,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 203 transitions. [2021-03-25 09:02:09,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:09,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 203 transitions. [2021-03-25 09:02:09,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.3) internal successors, (203), 10 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:09,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:09,157 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 127.0) internal successors, (1397), 11 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:09,157 INFO L185 Difference]: Start difference. First operand has 380 places, 341 transitions, 8412 flow. Second operand 10 states and 203 transitions. [2021-03-25 09:02:09,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 355 transitions, 10009 flow [2021-03-25 09:02:09,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 355 transitions, 9807 flow, removed 65 selfloop flow, removed 6 redundant places. [2021-03-25 09:02:09,668 INFO L241 Difference]: Finished difference. Result has 383 places, 347 transitions, 8759 flow [2021-03-25 09:02:09,668 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8191, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8759, PETRI_PLACES=383, PETRI_TRANSITIONS=347} [2021-03-25 09:02:09,668 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 367 predicate places. [2021-03-25 09:02:09,668 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:09,668 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 383 places, 347 transitions, 8759 flow [2021-03-25 09:02:09,668 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 383 places, 347 transitions, 8759 flow [2021-03-25 09:02:09,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 383 places, 347 transitions, 8759 flow [2021-03-25 09:02:09,814 INFO L129 PetriNetUnfolder]: 310/777 cut-off events. [2021-03-25 09:02:09,814 INFO L130 PetriNetUnfolder]: For 103235/103251 co-relation queries the response was YES. [2021-03-25 09:02:09,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13672 conditions, 777 events. 310/777 cut-off events. For 103235/103251 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5355 event pairs, 14 based on Foata normal form. 7/781 useless extension candidates. Maximal degree in co-relation 13414. Up to 456 conditions per place. [2021-03-25 09:02:09,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:09,840 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:09,840 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:09,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 09:02:09,840 INFO L480 AbstractCegarLoop]: Abstraction has has 383 places, 347 transitions, 8759 flow [2021-03-25 09:02:09,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:09,841 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:09,841 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:10,041 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable514 [2021-03-25 09:02:10,041 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:10,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:10,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1321909047, now seen corresponding path program 1 times [2021-03-25 09:02:10,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:10,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373334361] [2021-03-25 09:02:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:10,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:10,062 INFO L142 QuantifierPusher]: treesize reduction 332, result has 59.7 percent of original size [2021-03-25 09:02:10,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 492 [2021-03-25 09:02:10,203 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2021-03-25 09:02:10,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:10,229 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:02:10,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:10,248 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:02:10,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:02:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:10,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373334361] [2021-03-25 09:02:10,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659882975] [2021-03-25 09:02:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:10,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-25 09:02:10,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:10,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:10,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:10,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:10,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,314 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:10,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:10,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,316 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:02:10,316 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:02:10,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:10,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-25 09:02:10,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:02:10,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 09:02:10,324 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.0 percent of original size [2021-03-25 09:02:10,324 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:10,324 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,325 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:10,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:10,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:02:10,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:02:10,350 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-25 09:02:10,350 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:02:10,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-03-25 09:02:10,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:02:10,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 763 [2021-03-25 09:02:10,365 INFO L142 QuantifierPusher]: treesize reduction 11956, result has 3.2 percent of original size [2021-03-25 09:02:10,367 INFO L147 QuantifierPusher]: treesize reduction 32, result has 91.6 percent of original size 350 [2021-03-25 09:02:10,368 INFO L142 QuantifierPusher]: treesize reduction 32, result has 91.6 percent of original size [2021-03-25 09:02:10,369 INFO L147 QuantifierPusher]: treesize reduction 9, result has 97.4 percent of original size 341 [2021-03-25 09:02:10,554 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2021-03-25 09:02:10,555 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.2 percent of original size [2021-03-25 09:02:10,556 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:10,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-25 09:02:10,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-03-25 09:02:10,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-03-25 09:02:10,562 INFO L142 QuantifierPusher]: treesize reduction 107, result has 63.5 percent of original size [2021-03-25 09:02:10,562 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,564 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:10,564 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:02:10,565 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,566 INFO L142 QuantifierPusher]: treesize reduction 151, result has 53.8 percent of original size [2021-03-25 09:02:10,566 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:02:10,567 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,568 INFO L142 QuantifierPusher]: treesize reduction 135, result has 47.3 percent of original size [2021-03-25 09:02:10,569 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:10,569 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,569 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,570 INFO L142 QuantifierPusher]: treesize reduction 115, result has 46.5 percent of original size [2021-03-25 09:02:10,570 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:10,571 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,571 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,572 INFO L142 QuantifierPusher]: treesize reduction 72, result has 54.7 percent of original size [2021-03-25 09:02:10,572 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:10,572 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,573 INFO L142 QuantifierPusher]: treesize reduction 68, result has 31.3 percent of original size [2021-03-25 09:02:10,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:10,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:10,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:10,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:10,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,617 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:02:10,617 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:10,618 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:10,655 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 09:02:10,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:10,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,657 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:10,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:02:10,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,660 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,661 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 2, 1] term [2021-03-25 09:02:10,661 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:10,662 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,662 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:02:10,662 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:10,663 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,664 INFO L147 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size 37 [2021-03-25 09:02:10,664 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:10,664 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:10,665 INFO L142 QuantifierPusher]: treesize reduction 100, result has 20.6 percent of original size [2021-03-25 09:02:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:10,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:10,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:10,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:02:10,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515856547] [2021-03-25 09:02:10,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:02:10,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:10,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:02:10,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:02:10,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 127 [2021-03-25 09:02:10,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 347 transitions, 8759 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:10,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:10,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 127 [2021-03-25 09:02:10,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:11,613 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-03-25 09:02:11,865 INFO L129 PetriNetUnfolder]: 322/817 cut-off events. [2021-03-25 09:02:11,865 INFO L130 PetriNetUnfolder]: For 109434/109442 co-relation queries the response was YES. [2021-03-25 09:02:11,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15242 conditions, 817 events. 322/817 cut-off events. For 109434/109442 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5706 event pairs, 14 based on Foata normal form. 3/817 useless extension candidates. Maximal degree in co-relation 14975. Up to 674 conditions per place. [2021-03-25 09:02:11,877 INFO L132 encePairwiseOnDemand]: 118/127 looper letters, 339 selfloop transitions, 26 changer transitions 4/373 dead transitions. [2021-03-25 09:02:11,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 373 transitions, 10930 flow [2021-03-25 09:02:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-25 09:02:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-25 09:02:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 236 transitions. [2021-03-25 09:02:11,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1327334083239595 [2021-03-25 09:02:11,878 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 236 transitions. [2021-03-25 09:02:11,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 236 transitions. [2021-03-25 09:02:11,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:11,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 236 transitions. [2021-03-25 09:02:11,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 16.857142857142858) internal successors, (236), 14 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:11,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:11,879 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 127.0) internal successors, (1905), 15 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:11,879 INFO L185 Difference]: Start difference. First operand has 383 places, 347 transitions, 8759 flow. Second operand 14 states and 236 transitions. [2021-03-25 09:02:11,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 373 transitions, 10930 flow [2021-03-25 09:02:12,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 373 transitions, 10620 flow, removed 143 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:12,429 INFO L241 Difference]: Finished difference. Result has 396 places, 361 transitions, 9366 flow [2021-03-25 09:02:12,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=8449, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9366, PETRI_PLACES=396, PETRI_TRANSITIONS=361} [2021-03-25 09:02:12,429 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 380 predicate places. [2021-03-25 09:02:12,429 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:12,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 361 transitions, 9366 flow [2021-03-25 09:02:12,429 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 361 transitions, 9366 flow [2021-03-25 09:02:12,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 395 places, 361 transitions, 9366 flow [2021-03-25 09:02:12,596 INFO L129 PetriNetUnfolder]: 318/809 cut-off events. [2021-03-25 09:02:12,596 INFO L130 PetriNetUnfolder]: For 112154/112235 co-relation queries the response was YES. [2021-03-25 09:02:12,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14462 conditions, 809 events. 318/809 cut-off events. For 112154/112235 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5719 event pairs, 15 based on Foata normal form. 1/807 useless extension candidates. Maximal degree in co-relation 14192. Up to 476 conditions per place. [2021-03-25 09:02:12,609 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-25 09:02:13,039 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:13,040 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:02:13,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 611 [2021-03-25 09:02:13,040 INFO L480 AbstractCegarLoop]: Abstraction has has 395 places, 361 transitions, 9428 flow [2021-03-25 09:02:13,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:13,040 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:13,040 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:13,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:13,240 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:13,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:13,241 INFO L82 PathProgramCache]: Analyzing trace with hash -706301749, now seen corresponding path program 1 times [2021-03-25 09:02:13,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:13,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098801558] [2021-03-25 09:02:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:13,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:13,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:13,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:13,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:13,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:13,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098801558] [2021-03-25 09:02:13,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264639277] [2021-03-25 09:02:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:13,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-25 09:02:13,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:13,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:13,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:13,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,360 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:02:13,361 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:02:13,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:13,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:13,363 INFO L142 QuantifierPusher]: treesize reduction 53, result has 44.2 percent of original size [2021-03-25 09:02:13,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:13,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:13,386 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.5 percent of original size [2021-03-25 09:02:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:13,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:02:13,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:02:13,389 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-25 09:02:13,390 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:02:13,390 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,391 INFO L142 QuantifierPusher]: treesize reduction 91, result has 52.8 percent of original size [2021-03-25 09:02:13,391 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:02:13,392 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,393 INFO L142 QuantifierPusher]: treesize reduction 75, result has 45.3 percent of original size [2021-03-25 09:02:13,393 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:13,394 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,394 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-25 09:02:13,395 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:13,395 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:13,396 INFO L142 QuantifierPusher]: treesize reduction 20, result has 37.5 percent of original size [2021-03-25 09:02:13,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:13,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:13,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:13,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:13,416 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:13,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:13,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:13,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:13,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:13,419 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:13,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:13,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:13,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:13,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:02:13,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010324946] [2021-03-25 09:02:13,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:02:13,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:13,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:02:13,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:02:13,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:13,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 361 transitions, 9428 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:13,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:13,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:13,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:13,894 INFO L129 PetriNetUnfolder]: 318/798 cut-off events. [2021-03-25 09:02:13,895 INFO L130 PetriNetUnfolder]: For 111662/111670 co-relation queries the response was YES. [2021-03-25 09:02:13,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15137 conditions, 798 events. 318/798 cut-off events. For 111662/111670 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 5496 event pairs, 14 based on Foata normal form. 4/799 useless extension candidates. Maximal degree in co-relation 14858. Up to 634 conditions per place. [2021-03-25 09:02:13,905 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 335 selfloop transitions, 22 changer transitions 1/363 dead transitions. [2021-03-25 09:02:13,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 363 transitions, 10373 flow [2021-03-25 09:02:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:02:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:02:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 174 transitions. [2021-03-25 09:02:13,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1673076923076923 [2021-03-25 09:02:13,907 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 174 transitions. [2021-03-25 09:02:13,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 174 transitions. [2021-03-25 09:02:13,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:13,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 174 transitions. [2021-03-25 09:02:13,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.75) internal successors, (174), 8 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:13,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:13,909 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:13,909 INFO L185 Difference]: Start difference. First operand has 395 places, 361 transitions, 9428 flow. Second operand 8 states and 174 transitions. [2021-03-25 09:02:13,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 363 transitions, 10373 flow [2021-03-25 09:02:14,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 363 transitions, 9664 flow, removed 332 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:14,549 INFO L241 Difference]: Finished difference. Result has 393 places, 357 transitions, 8669 flow [2021-03-25 09:02:14,549 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8625, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8669, PETRI_PLACES=393, PETRI_TRANSITIONS=357} [2021-03-25 09:02:14,549 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 377 predicate places. [2021-03-25 09:02:14,550 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:14,550 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 357 transitions, 8669 flow [2021-03-25 09:02:14,550 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 357 transitions, 8669 flow [2021-03-25 09:02:14,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 357 transitions, 8669 flow [2021-03-25 09:02:14,697 INFO L129 PetriNetUnfolder]: 315/794 cut-off events. [2021-03-25 09:02:14,697 INFO L130 PetriNetUnfolder]: For 107957/108038 co-relation queries the response was YES. [2021-03-25 09:02:14,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13853 conditions, 794 events. 315/794 cut-off events. For 107957/108038 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5536 event pairs, 14 based on Foata normal form. 1/792 useless extension candidates. Maximal degree in co-relation 13586. Up to 460 conditions per place. [2021-03-25 09:02:14,717 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 09:02:14,740 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:14,740 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:14,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-03-25 09:02:14,740 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 357 transitions, 8669 flow [2021-03-25 09:02:14,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:14,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:14,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:14,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:14,956 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:14,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:14,956 INFO L82 PathProgramCache]: Analyzing trace with hash -651697362, now seen corresponding path program 1 times [2021-03-25 09:02:14,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:14,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083807080] [2021-03-25 09:02:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:14,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:14,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:14,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:14,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:14,984 INFO L142 QuantifierPusher]: treesize reduction 592, result has 52.0 percent of original size [2021-03-25 09:02:14,985 INFO L147 QuantifierPusher]: treesize reduction 7, result has 98.9 percent of original size 634 [2021-03-25 09:02:15,095 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 30 [2021-03-25 09:02:15,100 INFO L142 QuantifierPusher]: treesize reduction 1145, result has 14.6 percent of original size [2021-03-25 09:02:15,101 INFO L147 QuantifierPusher]: treesize reduction 22, result has 88.7 percent of original size 173 [2021-03-25 09:02:15,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:15,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:15,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083807080] [2021-03-25 09:02:15,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:15,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 09:02:15,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638711830] [2021-03-25 09:02:15,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:15,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:15,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:15,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:15,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 130 [2021-03-25 09:02:15,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 357 transitions, 8669 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:15,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:15,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 130 [2021-03-25 09:02:15,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:15,508 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2021-03-25 09:02:15,700 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-03-25 09:02:16,022 INFO L129 PetriNetUnfolder]: 318/797 cut-off events. [2021-03-25 09:02:16,022 INFO L130 PetriNetUnfolder]: For 110423/110431 co-relation queries the response was YES. [2021-03-25 09:02:16,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14687 conditions, 797 events. 318/797 cut-off events. For 110423/110431 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 5487 event pairs, 15 based on Foata normal form. 1/795 useless extension candidates. Maximal degree in co-relation 14411. Up to 678 conditions per place. [2021-03-25 09:02:16,032 INFO L132 encePairwiseOnDemand]: 121/130 looper letters, 343 selfloop transitions, 12 changer transitions 1/360 dead transitions. [2021-03-25 09:02:16,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 360 transitions, 9506 flow [2021-03-25 09:02:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2021-03-25 09:02:16,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17435897435897435 [2021-03-25 09:02:16,034 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 136 transitions. [2021-03-25 09:02:16,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 136 transitions. [2021-03-25 09:02:16,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:16,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 136 transitions. [2021-03-25 09:02:16,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:16,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:16,034 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:16,034 INFO L185 Difference]: Start difference. First operand has 393 places, 357 transitions, 8669 flow. Second operand 6 states and 136 transitions. [2021-03-25 09:02:16,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 360 transitions, 9506 flow [2021-03-25 09:02:16,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 360 transitions, 9362 flow, removed 41 selfloop flow, removed 8 redundant places. [2021-03-25 09:02:16,590 INFO L241 Difference]: Finished difference. Result has 391 places, 356 transitions, 8523 flow [2021-03-25 09:02:16,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8529, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8523, PETRI_PLACES=391, PETRI_TRANSITIONS=356} [2021-03-25 09:02:16,590 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 375 predicate places. [2021-03-25 09:02:16,590 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:16,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 391 places, 356 transitions, 8523 flow [2021-03-25 09:02:16,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 391 places, 356 transitions, 8523 flow [2021-03-25 09:02:16,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 356 transitions, 8523 flow [2021-03-25 09:02:16,730 INFO L129 PetriNetUnfolder]: 315/791 cut-off events. [2021-03-25 09:02:16,730 INFO L130 PetriNetUnfolder]: For 106410/106491 co-relation queries the response was YES. [2021-03-25 09:02:16,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13687 conditions, 791 events. 315/791 cut-off events. For 106410/106491 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 5501 event pairs, 14 based on Foata normal form. 1/789 useless extension candidates. Maximal degree in co-relation 13424. Up to 460 conditions per place. [2021-03-25 09:02:16,744 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 09:02:16,759 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:16,759 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:16,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 09:02:16,759 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 356 transitions, 8523 flow [2021-03-25 09:02:16,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:16,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:16,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:16,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-03-25 09:02:16,760 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:16,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:16,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2134192162, now seen corresponding path program 1 times [2021-03-25 09:02:16,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:16,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938690715] [2021-03-25 09:02:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:16,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:16,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:16,798 INFO L142 QuantifierPusher]: treesize reduction 3912, result has 22.9 percent of original size [2021-03-25 09:02:16,801 INFO L147 QuantifierPusher]: treesize reduction 58, result has 95.0 percent of original size 1103 [2021-03-25 09:02:17,120 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 56 [2021-03-25 09:02:17,121 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-25 09:02:17,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:17,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:17,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:17,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:17,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:17,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938690715] [2021-03-25 09:02:17,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:17,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:17,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016933625] [2021-03-25 09:02:17,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:17,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:17,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:17,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:17,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 356 transitions, 8523 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:17,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:17,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:17,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:17,592 INFO L129 PetriNetUnfolder]: 317/793 cut-off events. [2021-03-25 09:02:17,592 INFO L130 PetriNetUnfolder]: For 108023/108031 co-relation queries the response was YES. [2021-03-25 09:02:17,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14488 conditions, 793 events. 317/793 cut-off events. For 108023/108031 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5424 event pairs, 14 based on Foata normal form. 1/791 useless extension candidates. Maximal degree in co-relation 14216. Up to 643 conditions per place. [2021-03-25 09:02:17,604 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 342 selfloop transitions, 13 changer transitions 1/361 dead transitions. [2021-03-25 09:02:17,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 361 transitions, 9610 flow [2021-03-25 09:02:17,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2021-03-25 09:02:17,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.191025641025641 [2021-03-25 09:02:17,606 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 149 transitions. [2021-03-25 09:02:17,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 149 transitions. [2021-03-25 09:02:17,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:17,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 149 transitions. [2021-03-25 09:02:17,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:17,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:17,606 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:17,606 INFO L185 Difference]: Start difference. First operand has 389 places, 356 transitions, 8523 flow. Second operand 6 states and 149 transitions. [2021-03-25 09:02:17,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 361 transitions, 9610 flow [2021-03-25 09:02:18,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 361 transitions, 9584 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:18,117 INFO L241 Difference]: Finished difference. Result has 389 places, 354 transitions, 8478 flow [2021-03-25 09:02:18,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8485, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8478, PETRI_PLACES=389, PETRI_TRANSITIONS=354} [2021-03-25 09:02:18,117 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 373 predicate places. [2021-03-25 09:02:18,118 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:18,118 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 354 transitions, 8478 flow [2021-03-25 09:02:18,118 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 354 transitions, 8478 flow [2021-03-25 09:02:18,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 354 transitions, 8478 flow [2021-03-25 09:02:18,270 INFO L129 PetriNetUnfolder]: 314/788 cut-off events. [2021-03-25 09:02:18,270 INFO L130 PetriNetUnfolder]: For 106372/106453 co-relation queries the response was YES. [2021-03-25 09:02:18,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13634 conditions, 788 events. 314/788 cut-off events. For 106372/106453 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5449 event pairs, 14 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 13372. Up to 460 conditions per place. [2021-03-25 09:02:18,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:18,307 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:18,307 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:18,307 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-25 09:02:18,308 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 354 transitions, 8478 flow [2021-03-25 09:02:18,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:18,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:18,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:18,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-03-25 09:02:18,308 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:18,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:18,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1516280154, now seen corresponding path program 2 times [2021-03-25 09:02:18,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:18,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037793412] [2021-03-25 09:02:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:18,326 INFO L142 QuantifierPusher]: treesize reduction 125, result has 40.8 percent of original size [2021-03-25 09:02:18,327 INFO L147 QuantifierPusher]: treesize reduction 39, result has 54.7 percent of original size 47 [2021-03-25 09:02:18,371 INFO L142 QuantifierPusher]: treesize reduction 125, result has 40.2 percent of original size [2021-03-25 09:02:18,372 INFO L147 QuantifierPusher]: treesize reduction 39, result has 53.6 percent of original size 45 [2021-03-25 09:02:18,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:18,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037793412] [2021-03-25 09:02:18,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840354717] [2021-03-25 09:02:18,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:18,507 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:18,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:18,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:02:18,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:18,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:18,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:18,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:18,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:18,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:18,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,516 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:02:18,516 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:02:18,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:18,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-03-25 09:02:18,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:02:18,520 INFO L142 QuantifierPusher]: treesize reduction 383, result has 12.8 percent of original size [2021-03-25 09:02:18,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:18,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:18,551 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-25 09:02:18,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:18,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:18,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:18,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:18,574 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.8 percent of original size [2021-03-25 09:02:18,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-03-25 09:02:18,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:18,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 464 [2021-03-25 09:02:18,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-03-25 09:02:18,580 INFO L142 QuantifierPusher]: treesize reduction 733, result has 4.4 percent of original size [2021-03-25 09:02:18,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:18,585 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:18,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:18,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:18,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:18,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:02:18,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566162930] [2021-03-25 09:02:18,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:02:18,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:18,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:02:18,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:02:18,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:18,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 354 transitions, 8478 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:18,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:18,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:18,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:18,996 INFO L129 PetriNetUnfolder]: 317/782 cut-off events. [2021-03-25 09:02:18,997 INFO L130 PetriNetUnfolder]: For 107867/107875 co-relation queries the response was YES. [2021-03-25 09:02:19,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14373 conditions, 782 events. 317/782 cut-off events. For 107867/107875 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5264 event pairs, 14 based on Foata normal form. 3/782 useless extension candidates. Maximal degree in co-relation 14102. Up to 629 conditions per place. [2021-03-25 09:02:19,008 INFO L132 encePairwiseOnDemand]: 122/130 looper letters, 334 selfloop transitions, 20 changer transitions 0/359 dead transitions. [2021-03-25 09:02:19,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 359 transitions, 9460 flow [2021-03-25 09:02:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:02:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:02:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2021-03-25 09:02:19,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17582417582417584 [2021-03-25 09:02:19,009 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 160 transitions. [2021-03-25 09:02:19,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 160 transitions. [2021-03-25 09:02:19,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:19,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 160 transitions. [2021-03-25 09:02:19,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:19,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:19,010 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:19,010 INFO L185 Difference]: Start difference. First operand has 388 places, 354 transitions, 8478 flow. Second operand 7 states and 160 transitions. [2021-03-25 09:02:19,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 359 transitions, 9460 flow [2021-03-25 09:02:19,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 359 transitions, 9433 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 09:02:19,524 INFO L241 Difference]: Finished difference. Result has 389 places, 354 transitions, 8507 flow [2021-03-25 09:02:19,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8396, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=8507, PETRI_PLACES=389, PETRI_TRANSITIONS=354} [2021-03-25 09:02:19,525 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 373 predicate places. [2021-03-25 09:02:19,525 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:19,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 354 transitions, 8507 flow [2021-03-25 09:02:19,525 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 354 transitions, 8507 flow [2021-03-25 09:02:19,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 389 places, 354 transitions, 8507 flow [2021-03-25 09:02:19,655 INFO L129 PetriNetUnfolder]: 314/778 cut-off events. [2021-03-25 09:02:19,656 INFO L130 PetriNetUnfolder]: For 106086/106167 co-relation queries the response was YES. [2021-03-25 09:02:19,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13589 conditions, 778 events. 314/778 cut-off events. For 106086/106167 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5345 event pairs, 13 based on Foata normal form. 1/776 useless extension candidates. Maximal degree in co-relation 13326. Up to 457 conditions per place. [2021-03-25 09:02:19,668 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:19,682 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:19,682 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:19,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-03-25 09:02:19,683 INFO L480 AbstractCegarLoop]: Abstraction has has 389 places, 354 transitions, 8507 flow [2021-03-25 09:02:19,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:19,683 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:19,683 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:19,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable535 [2021-03-25 09:02:19,883 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash 643835629, now seen corresponding path program 1 times [2021-03-25 09:02:19,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:19,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522953580] [2021-03-25 09:02:19,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:19,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:19,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:19,899 INFO L142 QuantifierPusher]: treesize reduction 41, result has 47.4 percent of original size [2021-03-25 09:02:19,899 INFO L147 QuantifierPusher]: treesize reduction 31, result has 16.2 percent of original size 6 [2021-03-25 09:02:19,908 INFO L142 QuantifierPusher]: treesize reduction 186, result has 35.6 percent of original size [2021-03-25 09:02:19,909 INFO L147 QuantifierPusher]: treesize reduction 35, result has 66.0 percent of original size 68 [2021-03-25 09:02:19,946 INFO L142 QuantifierPusher]: treesize reduction 95, result has 18.8 percent of original size [2021-03-25 09:02:19,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:19,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:19,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:19,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:19,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:19,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522953580] [2021-03-25 09:02:19,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293167517] [2021-03-25 09:02:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:20,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:20,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:20,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:20,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,008 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:20,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:20,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:20,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,009 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:20,010 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,010 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:20,010 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:20,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:20,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:20,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:20,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:20,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:20,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:20,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:02:20,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,026 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:20,026 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,026 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:20,027 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:20,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:20,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:20,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:20,049 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-03-25 09:02:20,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:20,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:02:20,051 INFO L142 QuantifierPusher]: treesize reduction 109, result has 45.5 percent of original size [2021-03-25 09:02:20,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:02:20,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:02:20,154 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-25 09:02:20,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:20,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,155 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:20,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:20,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:02:20,157 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-25 09:02:20,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:20,163 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:20,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:20,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:20,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318266273] [2021-03-25 09:02:20,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:20,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:20,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:20,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:20,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:20,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 354 transitions, 8507 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:20,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:20,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:20,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:20,536 INFO L129 PetriNetUnfolder]: 317/776 cut-off events. [2021-03-25 09:02:20,536 INFO L130 PetriNetUnfolder]: For 109823/109831 co-relation queries the response was YES. [2021-03-25 09:02:20,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14443 conditions, 776 events. 317/776 cut-off events. For 109823/109831 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5209 event pairs, 15 based on Foata normal form. 5/778 useless extension candidates. Maximal degree in co-relation 14171. Up to 613 conditions per place. [2021-03-25 09:02:20,547 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 309 selfloop transitions, 42 changer transitions 0/356 dead transitions. [2021-03-25 09:02:20,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 356 transitions, 9510 flow [2021-03-25 09:02:20,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:02:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:02:20,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 171 transitions. [2021-03-25 09:02:20,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16442307692307692 [2021-03-25 09:02:20,548 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 171 transitions. [2021-03-25 09:02:20,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 171 transitions. [2021-03-25 09:02:20,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:20,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 171 transitions. [2021-03-25 09:02:20,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 21.375) internal successors, (171), 8 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:20,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:20,549 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:20,549 INFO L185 Difference]: Start difference. First operand has 389 places, 354 transitions, 8507 flow. Second operand 8 states and 171 transitions. [2021-03-25 09:02:20,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 356 transitions, 9510 flow [2021-03-25 09:02:21,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 356 transitions, 9470 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-03-25 09:02:21,042 INFO L241 Difference]: Finished difference. Result has 387 places, 351 transitions, 8623 flow [2021-03-25 09:02:21,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8377, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8623, PETRI_PLACES=387, PETRI_TRANSITIONS=351} [2021-03-25 09:02:21,043 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 371 predicate places. [2021-03-25 09:02:21,043 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:21,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 351 transitions, 8623 flow [2021-03-25 09:02:21,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 351 transitions, 8623 flow [2021-03-25 09:02:21,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 387 places, 351 transitions, 8623 flow [2021-03-25 09:02:21,282 INFO L129 PetriNetUnfolder]: 314/771 cut-off events. [2021-03-25 09:02:21,282 INFO L130 PetriNetUnfolder]: For 105385/105466 co-relation queries the response was YES. [2021-03-25 09:02:21,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13608 conditions, 771 events. 314/771 cut-off events. For 105385/105466 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5262 event pairs, 13 based on Foata normal form. 1/769 useless extension candidates. Maximal degree in co-relation 13347. Up to 458 conditions per place. [2021-03-25 09:02:21,294 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:21,308 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:21,308 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:21,308 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 265 [2021-03-25 09:02:21,308 INFO L480 AbstractCegarLoop]: Abstraction has has 387 places, 351 transitions, 8623 flow [2021-03-25 09:02:21,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:21,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:21,309 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:21,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:21,509 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:21,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1548497147, now seen corresponding path program 1 times [2021-03-25 09:02:21,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:21,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795064343] [2021-03-25 09:02:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:21,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:21,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:21,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:21,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:21,535 INFO L142 QuantifierPusher]: treesize reduction 2211, result has 6.4 percent of original size [2021-03-25 09:02:21,536 INFO L147 QuantifierPusher]: treesize reduction 9, result has 94.1 percent of original size 143 [2021-03-25 09:02:21,595 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:02:21,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:21,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:21,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:21,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:21,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795064343] [2021-03-25 09:02:21,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:21,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:21,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009803582] [2021-03-25 09:02:21,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:21,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:21,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:21,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:21,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:21,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 351 transitions, 8623 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:21,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:21,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:21,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:22,123 INFO L129 PetriNetUnfolder]: 316/769 cut-off events. [2021-03-25 09:02:22,123 INFO L130 PetriNetUnfolder]: For 106956/106964 co-relation queries the response was YES. [2021-03-25 09:02:22,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14344 conditions, 769 events. 316/769 cut-off events. For 106956/106964 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5145 event pairs, 15 based on Foata normal form. 1/767 useless extension candidates. Maximal degree in co-relation 14074. Up to 642 conditions per place. [2021-03-25 09:02:22,140 INFO L132 encePairwiseOnDemand]: 123/130 looper letters, 335 selfloop transitions, 10 changer transitions 2/352 dead transitions. [2021-03-25 09:02:22,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 352 transitions, 9421 flow [2021-03-25 09:02:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-25 09:02:22,142 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18205128205128204 [2021-03-25 09:02:22,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-25 09:02:22,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-25 09:02:22,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:22,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-25 09:02:22,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:22,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:22,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:22,143 INFO L185 Difference]: Start difference. First operand has 387 places, 351 transitions, 8623 flow. Second operand 6 states and 142 transitions. [2021-03-25 09:02:22,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 352 transitions, 9421 flow [2021-03-25 09:02:22,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 352 transitions, 9269 flow, removed 38 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:22,772 INFO L241 Difference]: Finished difference. Result has 387 places, 348 transitions, 8443 flow [2021-03-25 09:02:22,773 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8468, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8443, PETRI_PLACES=387, PETRI_TRANSITIONS=348} [2021-03-25 09:02:22,773 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 371 predicate places. [2021-03-25 09:02:22,773 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:22,773 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 387 places, 348 transitions, 8443 flow [2021-03-25 09:02:22,773 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 387 places, 348 transitions, 8443 flow [2021-03-25 09:02:22,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 382 places, 348 transitions, 8443 flow [2021-03-25 09:02:22,901 INFO L129 PetriNetUnfolder]: 313/763 cut-off events. [2021-03-25 09:02:22,902 INFO L130 PetriNetUnfolder]: For 103925/104006 co-relation queries the response was YES. [2021-03-25 09:02:22,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13451 conditions, 763 events. 313/763 cut-off events. For 103925/104006 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5171 event pairs, 13 based on Foata normal form. 1/761 useless extension candidates. Maximal degree in co-relation 13190. Up to 455 conditions per place. [2021-03-25 09:02:22,914 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 09:02:22,928 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:22,928 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:22,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-03-25 09:02:22,928 INFO L480 AbstractCegarLoop]: Abstraction has has 382 places, 348 transitions, 8443 flow [2021-03-25 09:02:22,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:22,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:22,929 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:22,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-03-25 09:02:22,929 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:22,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2020200128, now seen corresponding path program 2 times [2021-03-25 09:02:22,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:22,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211600353] [2021-03-25 09:02:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:22,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:22,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:22,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:22,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:22,942 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:02:22,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:22,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:22,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:22,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:22,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:22,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:22,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:22,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211600353] [2021-03-25 09:02:22,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:22,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:22,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367134261] [2021-03-25 09:02:22,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:22,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:22,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:22,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:22,964 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:22,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 348 transitions, 8443 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:22,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:22,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:22,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:23,273 INFO L129 PetriNetUnfolder]: 315/767 cut-off events. [2021-03-25 09:02:23,273 INFO L130 PetriNetUnfolder]: For 104591/104599 co-relation queries the response was YES. [2021-03-25 09:02:23,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14240 conditions, 767 events. 315/767 cut-off events. For 104591/104599 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5104 event pairs, 14 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 13970. Up to 613 conditions per place. [2021-03-25 09:02:23,285 INFO L132 encePairwiseOnDemand]: 119/130 looper letters, 314 selfloop transitions, 32 changer transitions 1/352 dead transitions. [2021-03-25 09:02:23,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 352 transitions, 9423 flow [2021-03-25 09:02:23,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:23,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 142 transitions. [2021-03-25 09:02:23,287 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18205128205128204 [2021-03-25 09:02:23,287 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 142 transitions. [2021-03-25 09:02:23,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 142 transitions. [2021-03-25 09:02:23,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:23,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 142 transitions. [2021-03-25 09:02:23,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:23,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:23,287 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:23,288 INFO L185 Difference]: Start difference. First operand has 382 places, 348 transitions, 8443 flow. Second operand 6 states and 142 transitions. [2021-03-25 09:02:23,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 352 transitions, 9423 flow [2021-03-25 09:02:23,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 352 transitions, 9402 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 09:02:23,816 INFO L241 Difference]: Finished difference. Result has 385 places, 347 transitions, 8477 flow [2021-03-25 09:02:23,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8407, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8477, PETRI_PLACES=385, PETRI_TRANSITIONS=347} [2021-03-25 09:02:23,816 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 369 predicate places. [2021-03-25 09:02:23,816 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:23,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 385 places, 347 transitions, 8477 flow [2021-03-25 09:02:23,816 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 385 places, 347 transitions, 8477 flow [2021-03-25 09:02:23,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 384 places, 347 transitions, 8477 flow [2021-03-25 09:02:23,951 INFO L129 PetriNetUnfolder]: 312/761 cut-off events. [2021-03-25 09:02:23,951 INFO L130 PetriNetUnfolder]: For 101403/101484 co-relation queries the response was YES. [2021-03-25 09:02:23,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13377 conditions, 761 events. 312/761 cut-off events. For 101403/101484 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 5115 event pairs, 13 based on Foata normal form. 1/759 useless extension candidates. Maximal degree in co-relation 13118. Up to 455 conditions per place. [2021-03-25 09:02:24,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 09:02:24,017 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:24,017 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:24,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-03-25 09:02:24,017 INFO L480 AbstractCegarLoop]: Abstraction has has 384 places, 347 transitions, 8477 flow [2021-03-25 09:02:24,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:24,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:24,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:24,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-03-25 09:02:24,018 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:24,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1912540889, now seen corresponding path program 1 times [2021-03-25 09:02:24,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:24,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320817597] [2021-03-25 09:02:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:24,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:24,033 INFO L142 QuantifierPusher]: treesize reduction 202, result has 32.2 percent of original size [2021-03-25 09:02:24,033 INFO L147 QuantifierPusher]: treesize reduction 28, result has 70.8 percent of original size 68 [2021-03-25 09:02:24,068 INFO L142 QuantifierPusher]: treesize reduction 67, result has 25.6 percent of original size [2021-03-25 09:02:24,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:24,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:24,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:24,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:24,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320817597] [2021-03-25 09:02:24,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201116931] [2021-03-25 09:02:24,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:24,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-25 09:02:24,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:24,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:24,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:02:24,140 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-25 09:02:24,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:24,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:24,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:02:24,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-25 09:02:24,179 INFO L142 QuantifierPusher]: treesize reduction 160, result has 49.5 percent of original size [2021-03-25 09:02:24,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:02:24,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:02:24,243 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.7 percent of original size [2021-03-25 09:02:24,244 INFO L147 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size 53 [2021-03-25 09:02:24,244 INFO L142 QuantifierPusher]: treesize reduction 40, result has 57.4 percent of original size [2021-03-25 09:02:24,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:02:24,245 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.4 percent of original size [2021-03-25 09:02:24,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:02:24,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:02:24,271 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.2 percent of original size [2021-03-25 09:02:24,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-25 09:02:24,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:24,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 09:02:24,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:02:24,274 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-25 09:02:24,275 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:24,275 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:24,276 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-25 09:02:24,276 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:24,276 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:24,277 INFO L142 QuantifierPusher]: treesize reduction 84, result has 44.0 percent of original size [2021-03-25 09:02:24,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:24,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:24,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:24,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:24,298 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:24,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:24,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:24,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:24,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:24,300 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:24,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:24,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:24,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:24,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:24,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-25 09:02:24,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391677413] [2021-03-25 09:02:24,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:02:24,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:24,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:02:24,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:02:24,305 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:24,305 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 347 transitions, 8477 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:24,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:24,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:24,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:24,819 INFO L129 PetriNetUnfolder]: 319/777 cut-off events. [2021-03-25 09:02:24,820 INFO L130 PetriNetUnfolder]: For 107636/107644 co-relation queries the response was YES. [2021-03-25 09:02:24,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14569 conditions, 777 events. 319/777 cut-off events. For 107636/107644 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5195 event pairs, 14 based on Foata normal form. 4/778 useless extension candidates. Maximal degree in co-relation 14301. Up to 607 conditions per place. [2021-03-25 09:02:24,831 INFO L132 encePairwiseOnDemand]: 116/130 looper letters, 310 selfloop transitions, 44 changer transitions 0/359 dead transitions. [2021-03-25 09:02:24,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 359 transitions, 10028 flow [2021-03-25 09:02:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:02:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:02:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 201 transitions. [2021-03-25 09:02:24,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15461538461538463 [2021-03-25 09:02:24,832 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 201 transitions. [2021-03-25 09:02:24,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 201 transitions. [2021-03-25 09:02:24,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:24,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 201 transitions. [2021-03-25 09:02:24,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.1) internal successors, (201), 10 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:24,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:24,834 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:24,834 INFO L185 Difference]: Start difference. First operand has 384 places, 347 transitions, 8477 flow. Second operand 10 states and 201 transitions. [2021-03-25 09:02:24,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 359 transitions, 10028 flow [2021-03-25 09:02:25,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 359 transitions, 9940 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:25,375 INFO L241 Difference]: Finished difference. Result has 390 places, 349 transitions, 8698 flow [2021-03-25 09:02:25,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8336, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8698, PETRI_PLACES=390, PETRI_TRANSITIONS=349} [2021-03-25 09:02:25,375 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 374 predicate places. [2021-03-25 09:02:25,375 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:25,375 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 349 transitions, 8698 flow [2021-03-25 09:02:25,376 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 349 transitions, 8698 flow [2021-03-25 09:02:25,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 390 places, 349 transitions, 8698 flow [2021-03-25 09:02:25,510 INFO L129 PetriNetUnfolder]: 316/774 cut-off events. [2021-03-25 09:02:25,510 INFO L130 PetriNetUnfolder]: For 106170/106251 co-relation queries the response was YES. [2021-03-25 09:02:25,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13802 conditions, 774 events. 316/774 cut-off events. For 106170/106251 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5223 event pairs, 14 based on Foata normal form. 1/772 useless extension candidates. Maximal degree in co-relation 13541. Up to 467 conditions per place. [2021-03-25 09:02:25,523 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:02:25,538 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:25,538 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:25,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-25 09:02:25,538 INFO L480 AbstractCegarLoop]: Abstraction has has 390 places, 349 transitions, 8698 flow [2021-03-25 09:02:25,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:25,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:25,538 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:25,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable541 [2021-03-25 09:02:25,739 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:25,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:25,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1515628496, now seen corresponding path program 2 times [2021-03-25 09:02:25,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:25,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913544924] [2021-03-25 09:02:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:25,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:25,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:02:25,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:25,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:25,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913544924] [2021-03-25 09:02:25,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655179555] [2021-03-25 09:02:25,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:25,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:25,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:25,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:25,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:25,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:25,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,815 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:25,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:25,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:25,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,816 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:25,817 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,817 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:25,817 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:25,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:25,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:25,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:25,830 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:02:25,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:25,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:25,832 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:02:25,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:25,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:25,848 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-25 09:02:25,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:25,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:02:25,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:25,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:02:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:02:25,855 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-25 09:02:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:25,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:25,856 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:25,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:25,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:25,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:25,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:02:25,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788861583] [2021-03-25 09:02:25,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:02:25,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:02:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:02:25,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:25,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 349 transitions, 8698 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:25,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:25,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:25,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:26,321 INFO L129 PetriNetUnfolder]: 323/787 cut-off events. [2021-03-25 09:02:26,321 INFO L130 PetriNetUnfolder]: For 110084/110092 co-relation queries the response was YES. [2021-03-25 09:02:26,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14859 conditions, 787 events. 323/787 cut-off events. For 110084/110092 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5275 event pairs, 12 based on Foata normal form. 4/788 useless extension candidates. Maximal degree in co-relation 14589. Up to 478 conditions per place. [2021-03-25 09:02:26,333 INFO L132 encePairwiseOnDemand]: 105/130 looper letters, 283 selfloop transitions, 98 changer transitions 0/386 dead transitions. [2021-03-25 09:02:26,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 386 transitions, 11281 flow [2021-03-25 09:02:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:02:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:02:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 181 transitions. [2021-03-25 09:02:26,334 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17403846153846153 [2021-03-25 09:02:26,334 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 181 transitions. [2021-03-25 09:02:26,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 181 transitions. [2021-03-25 09:02:26,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:26,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 181 transitions. [2021-03-25 09:02:26,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.625) internal successors, (181), 8 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:26,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:26,335 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 130.0) internal successors, (1170), 9 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:26,335 INFO L185 Difference]: Start difference. First operand has 390 places, 349 transitions, 8698 flow. Second operand 8 states and 181 transitions. [2021-03-25 09:02:26,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 386 transitions, 11281 flow [2021-03-25 09:02:26,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 386 transitions, 11145 flow, removed 32 selfloop flow, removed 5 redundant places. [2021-03-25 09:02:26,904 INFO L241 Difference]: Finished difference. Result has 393 places, 351 transitions, 8856 flow [2021-03-25 09:02:26,904 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8566, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8856, PETRI_PLACES=393, PETRI_TRANSITIONS=351} [2021-03-25 09:02:26,904 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 377 predicate places. [2021-03-25 09:02:26,904 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:26,904 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 351 transitions, 8856 flow [2021-03-25 09:02:26,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 351 transitions, 8856 flow [2021-03-25 09:02:26,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 351 transitions, 8856 flow [2021-03-25 09:02:27,042 INFO L129 PetriNetUnfolder]: 320/782 cut-off events. [2021-03-25 09:02:27,042 INFO L130 PetriNetUnfolder]: For 107662/107702 co-relation queries the response was YES. [2021-03-25 09:02:27,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14094 conditions, 782 events. 320/782 cut-off events. For 107662/107702 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5290 event pairs, 13 based on Foata normal form. 1/780 useless extension candidates. Maximal degree in co-relation 13867. Up to 475 conditions per place. [2021-03-25 09:02:27,056 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:02:27,071 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:27,071 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:27,071 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 09:02:27,072 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 351 transitions, 8856 flow [2021-03-25 09:02:27,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:27,072 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:27,072 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:27,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable544 [2021-03-25 09:02:27,272 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:27,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:27,273 INFO L82 PathProgramCache]: Analyzing trace with hash 471649133, now seen corresponding path program 1 times [2021-03-25 09:02:27,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:27,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614594179] [2021-03-25 09:02:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:27,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,287 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:02:27,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:27,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:27,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:27,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:27,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614594179] [2021-03-25 09:02:27,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28003338] [2021-03-25 09:02:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:27,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:27,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:27,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:27,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:27,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:27,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,364 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:27,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,365 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:27,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:27,378 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-25 09:02:27,378 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:02:27,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:02:27,380 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-25 09:02:27,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:27,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:27,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:02:27,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 09:02:27,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:02:27,456 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.9 percent of original size [2021-03-25 09:02:27,456 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:02:27,457 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,457 INFO L142 QuantifierPusher]: treesize reduction 68, result has 58.8 percent of original size [2021-03-25 09:02:27,458 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:27,458 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,459 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,459 INFO L142 QuantifierPusher]: treesize reduction 51, result has 52.3 percent of original size [2021-03-25 09:02:27,460 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:27,460 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,472 INFO L142 QuantifierPusher]: treesize reduction 32, result has 41.8 percent of original size [2021-03-25 09:02:27,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:27,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:27,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:02:27,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:02:27,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:02:27,507 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size [2021-03-25 09:02:27,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:27,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:27,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:27,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,509 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:27,510 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:27,511 INFO L142 QuantifierPusher]: treesize reduction 31, result has 22.5 percent of original size [2021-03-25 09:02:27,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:27,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:27,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:27,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:27,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:27,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:27,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:27,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605100059] [2021-03-25 09:02:27,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:27,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:27,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:27,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:27,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:27,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 351 transitions, 8856 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:27,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:27,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:27,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:28,092 INFO L129 PetriNetUnfolder]: 322/788 cut-off events. [2021-03-25 09:02:28,092 INFO L130 PetriNetUnfolder]: For 110535/110543 co-relation queries the response was YES. [2021-03-25 09:02:28,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14941 conditions, 788 events. 322/788 cut-off events. For 110535/110543 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5304 event pairs, 15 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 14670. Up to 527 conditions per place. [2021-03-25 09:02:28,103 INFO L132 encePairwiseOnDemand]: 111/130 looper letters, 269 selfloop transitions, 94 changer transitions 2/370 dead transitions. [2021-03-25 09:02:28,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 370 transitions, 10389 flow [2021-03-25 09:02:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:02:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:02:28,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 189 transitions. [2021-03-25 09:02:28,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16153846153846155 [2021-03-25 09:02:28,104 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 189 transitions. [2021-03-25 09:02:28,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 189 transitions. [2021-03-25 09:02:28,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:28,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 189 transitions. [2021-03-25 09:02:28,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.0) internal successors, (189), 9 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:28,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:28,105 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:28,105 INFO L185 Difference]: Start difference. First operand has 393 places, 351 transitions, 8856 flow. Second operand 9 states and 189 transitions. [2021-03-25 09:02:28,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 370 transitions, 10389 flow [2021-03-25 09:02:28,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 370 transitions, 10269 flow, removed 13 selfloop flow, removed 6 redundant places. [2021-03-25 09:02:28,636 INFO L241 Difference]: Finished difference. Result has 395 places, 349 transitions, 8891 flow [2021-03-25 09:02:28,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8714, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8891, PETRI_PLACES=395, PETRI_TRANSITIONS=349} [2021-03-25 09:02:28,636 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 379 predicate places. [2021-03-25 09:02:28,636 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:28,636 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 349 transitions, 8891 flow [2021-03-25 09:02:28,636 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 349 transitions, 8891 flow [2021-03-25 09:02:28,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 393 places, 349 transitions, 8891 flow [2021-03-25 09:02:28,773 INFO L129 PetriNetUnfolder]: 319/784 cut-off events. [2021-03-25 09:02:28,774 INFO L130 PetriNetUnfolder]: For 108368/108408 co-relation queries the response was YES. [2021-03-25 09:02:28,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14175 conditions, 784 events. 319/784 cut-off events. For 108368/108408 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5329 event pairs, 17 based on Foata normal form. 1/782 useless extension candidates. Maximal degree in co-relation 13915. Up to 477 conditions per place. [2021-03-25 09:02:28,787 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:02:28,802 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:28,802 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:28,802 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 09:02:28,802 INFO L480 AbstractCegarLoop]: Abstraction has has 393 places, 349 transitions, 8891 flow [2021-03-25 09:02:28,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:28,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:28,802 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:29,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable546 [2021-03-25 09:02:29,011 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:29,011 INFO L82 PathProgramCache]: Analyzing trace with hash 197363396, now seen corresponding path program 3 times [2021-03-25 09:02:29,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:29,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360292546] [2021-03-25 09:02:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:29,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:29,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:02:29,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:29,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:29,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360292546] [2021-03-25 09:02:29,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141948751] [2021-03-25 09:02:29,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:29,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-25 09:02:29,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:29,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:29,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:29,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:29,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:29,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:29,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,094 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:29,095 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:29,095 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:29,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:29,108 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-25 09:02:29,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:29,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:29,111 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-25 09:02:29,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:29,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:02:29,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:29,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:29,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-25 09:02:29,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:02:29,130 INFO L142 QuantifierPusher]: treesize reduction 25, result has 82.1 percent of original size [2021-03-25 09:02:29,130 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-25 09:02:29,130 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:29,131 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-25 09:02:29,131 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:29,131 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:29,132 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-25 09:02:29,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:29,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:29,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:29,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:29,154 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:29,158 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:29,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:29,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:29,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:29,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732965875] [2021-03-25 09:02:29,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:29,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:29,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:29,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:29,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 130 [2021-03-25 09:02:29,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 349 transitions, 8891 flow. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:29,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:29,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 130 [2021-03-25 09:02:29,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:29,681 INFO L129 PetriNetUnfolder]: 324/794 cut-off events. [2021-03-25 09:02:29,681 INFO L130 PetriNetUnfolder]: For 111062/111070 co-relation queries the response was YES. [2021-03-25 09:02:29,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15113 conditions, 794 events. 324/794 cut-off events. For 111062/111070 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 5328 event pairs, 12 based on Foata normal form. 2/793 useless extension candidates. Maximal degree in co-relation 14844. Up to 484 conditions per place. [2021-03-25 09:02:29,693 INFO L132 encePairwiseOnDemand]: 106/130 looper letters, 278 selfloop transitions, 100 changer transitions 0/383 dead transitions. [2021-03-25 09:02:29,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 383 transitions, 11364 flow [2021-03-25 09:02:29,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:02:29,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:02:29,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 194 transitions. [2021-03-25 09:02:29,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1658119658119658 [2021-03-25 09:02:29,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 194 transitions. [2021-03-25 09:02:29,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 194 transitions. [2021-03-25 09:02:29,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:29,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 194 transitions. [2021-03-25 09:02:29,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.555555555555557) internal successors, (194), 9 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:29,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:29,695 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 130.0) internal successors, (1300), 10 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:29,695 INFO L185 Difference]: Start difference. First operand has 393 places, 349 transitions, 8891 flow. Second operand 9 states and 194 transitions. [2021-03-25 09:02:29,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 383 transitions, 11364 flow [2021-03-25 09:02:30,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 383 transitions, 11089 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-03-25 09:02:30,250 INFO L241 Difference]: Finished difference. Result has 396 places, 351 transitions, 8945 flow [2021-03-25 09:02:30,251 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8620, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8945, PETRI_PLACES=396, PETRI_TRANSITIONS=351} [2021-03-25 09:02:30,251 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 380 predicate places. [2021-03-25 09:02:30,251 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:30,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 396 places, 351 transitions, 8945 flow [2021-03-25 09:02:30,251 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 396 places, 351 transitions, 8945 flow [2021-03-25 09:02:30,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 351 transitions, 8945 flow [2021-03-25 09:02:30,390 INFO L129 PetriNetUnfolder]: 321/789 cut-off events. [2021-03-25 09:02:30,390 INFO L130 PetriNetUnfolder]: For 108385/108466 co-relation queries the response was YES. [2021-03-25 09:02:30,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14291 conditions, 789 events. 321/789 cut-off events. For 108385/108466 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 5347 event pairs, 15 based on Foata normal form. 1/787 useless extension candidates. Maximal degree in co-relation 14030. Up to 481 conditions per place. [2021-03-25 09:02:30,403 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 09:02:30,418 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:30,418 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:30,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-25 09:02:30,418 INFO L480 AbstractCegarLoop]: Abstraction has has 396 places, 351 transitions, 8945 flow [2021-03-25 09:02:30,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:30,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:30,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:30,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:30,620 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:30,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2134467397, now seen corresponding path program 1 times [2021-03-25 09:02:30,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:30,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623895958] [2021-03-25 09:02:30,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:30,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:30,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:30,648 INFO L142 QuantifierPusher]: treesize reduction 5983, result has 3.7 percent of original size [2021-03-25 09:02:30,649 INFO L147 QuantifierPusher]: treesize reduction 16, result has 93.1 percent of original size 216 [2021-03-25 09:02:30,688 INFO L142 QuantifierPusher]: treesize reduction 6971, result has 12.1 percent of original size [2021-03-25 09:02:30,691 INFO L147 QuantifierPusher]: treesize reduction 39, result has 95.9 percent of original size 917 [2021-03-25 09:02:31,135 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 64 [2021-03-25 09:02:31,137 INFO L142 QuantifierPusher]: treesize reduction 208, result has 20.0 percent of original size [2021-03-25 09:02:31,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:02:31,185 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size [2021-03-25 09:02:31,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:02:31,218 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:02:31,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:02:31,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:31,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623895958] [2021-03-25 09:02:31,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009408662] [2021-03-25 09:02:31,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:31,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:02:31,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:31,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:31,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:31,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:31,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,287 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:31,288 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,288 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:31,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:31,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:31,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:31,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:02:31,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:02:31,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:02:31,308 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.4 percent of original size [2021-03-25 09:02:31,308 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:31,309 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,309 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:31,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:31,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:02:31,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:02:31,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.1 percent of original size [2021-03-25 09:02:31,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:02:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 289 [2021-03-25 09:02:31,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:02:31,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 742 [2021-03-25 09:02:31,361 INFO L142 QuantifierPusher]: treesize reduction 42936, result has 0.4 percent of original size [2021-03-25 09:02:31,362 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:02:31,362 INFO L142 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size [2021-03-25 09:02:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-25 09:02:31,478 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-03-25 09:02:31,480 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.8 percent of original size [2021-03-25 09:02:31,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:31,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-25 09:02:31,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-25 09:02:31,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-03-25 09:02:31,485 INFO L142 QuantifierPusher]: treesize reduction 107, result has 65.1 percent of original size [2021-03-25 09:02:31,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,486 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:31,486 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:02:31,487 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,487 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,488 INFO L142 QuantifierPusher]: treesize reduction 151, result has 57.5 percent of original size [2021-03-25 09:02:31,488 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:02:31,489 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,490 INFO L142 QuantifierPusher]: treesize reduction 149, result has 47.5 percent of original size [2021-03-25 09:02:31,490 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:02:31,490 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,491 INFO L142 QuantifierPusher]: treesize reduction 129, result has 46.9 percent of original size [2021-03-25 09:02:31,491 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:02:31,492 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,492 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,492 INFO L142 QuantifierPusher]: treesize reduction 72, result has 61.5 percent of original size [2021-03-25 09:02:31,493 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:02:31,493 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,494 INFO L142 QuantifierPusher]: treesize reduction 82, result has 35.4 percent of original size [2021-03-25 09:02:31,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:31,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:31,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:31,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:31,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:31,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:02:31,527 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 09:02:31,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:31,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:31,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:02:31,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:02:31,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:02:31,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,532 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,532 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:02:31,532 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:31,533 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,534 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:02:31,534 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:31,534 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,535 INFO L147 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size 37 [2021-03-25 09:02:31,535 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:31,536 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,537 INFO L142 QuantifierPusher]: treesize reduction 98, result has 22.2 percent of original size [2021-03-25 09:02:31,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:31,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:31,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:31,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:31,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:02:31,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:02:31,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:31,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:31,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:31,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:02:31,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84530972] [2021-03-25 09:02:31,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:02:31,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:31,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:02:31,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:02:31,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 130 [2021-03-25 09:02:31,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 351 transitions, 8945 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:31,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:31,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 130 [2021-03-25 09:02:31,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:32,078 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 48 [2021-03-25 09:02:32,681 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-03-25 09:02:32,947 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-25 09:02:33,004 INFO L129 PetriNetUnfolder]: 332/820 cut-off events. [2021-03-25 09:02:33,004 INFO L130 PetriNetUnfolder]: For 115549/115557 co-relation queries the response was YES. [2021-03-25 09:02:33,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15850 conditions, 820 events. 332/820 cut-off events. For 115549/115557 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 5593 event pairs, 16 based on Foata normal form. 5/822 useless extension candidates. Maximal degree in co-relation 15580. Up to 670 conditions per place. [2021-03-25 09:02:33,015 INFO L132 encePairwiseOnDemand]: 117/130 looper letters, 322 selfloop transitions, 41 changer transitions 6/373 dead transitions. [2021-03-25 09:02:33,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 373 transitions, 10973 flow [2021-03-25 09:02:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-25 09:02:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-25 09:02:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 210 transitions. [2021-03-25 09:02:33,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1346153846153846 [2021-03-25 09:02:33,016 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 210 transitions. [2021-03-25 09:02:33,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 210 transitions. [2021-03-25 09:02:33,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:33,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 210 transitions. [2021-03-25 09:02:33,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.5) internal successors, (210), 12 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:33,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:33,017 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:33,017 INFO L185 Difference]: Start difference. First operand has 396 places, 351 transitions, 8945 flow. Second operand 12 states and 210 transitions. [2021-03-25 09:02:33,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 373 transitions, 10973 flow [2021-03-25 09:02:33,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 373 transitions, 10750 flow, removed 15 selfloop flow, removed 6 redundant places. [2021-03-25 09:02:33,632 INFO L241 Difference]: Finished difference. Result has 408 places, 362 transitions, 9510 flow [2021-03-25 09:02:33,632 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8722, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9510, PETRI_PLACES=408, PETRI_TRANSITIONS=362} [2021-03-25 09:02:33,632 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 392 predicate places. [2021-03-25 09:02:33,632 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:33,632 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 408 places, 362 transitions, 9510 flow [2021-03-25 09:02:33,632 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 408 places, 362 transitions, 9510 flow [2021-03-25 09:02:33,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 406 places, 362 transitions, 9510 flow [2021-03-25 09:02:33,785 INFO L129 PetriNetUnfolder]: 327/811 cut-off events. [2021-03-25 09:02:33,785 INFO L130 PetriNetUnfolder]: For 121997/122080 co-relation queries the response was YES. [2021-03-25 09:02:33,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15232 conditions, 811 events. 327/811 cut-off events. For 121997/122080 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5550 event pairs, 15 based on Foata normal form. 1/809 useless extension candidates. Maximal degree in co-relation 14959. Up to 497 conditions per place. [2021-03-25 09:02:33,801 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-25 09:02:34,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:34,348 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:02:34,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 716 [2021-03-25 09:02:34,348 INFO L480 AbstractCegarLoop]: Abstraction has has 406 places, 362 transitions, 9567 flow [2021-03-25 09:02:34,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:34,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:34,348 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:34,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable556 [2021-03-25 09:02:34,561 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:34,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1646065389, now seen corresponding path program 2 times [2021-03-25 09:02:34,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:34,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726875500] [2021-03-25 09:02:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:34,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:34,589 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.9 percent of original size [2021-03-25 09:02:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:34,614 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.1 percent of original size [2021-03-25 09:02:34,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:34,641 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:02:34,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:34,664 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:02:34,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:02:34,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:34,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726875500] [2021-03-25 09:02:34,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48788219] [2021-03-25 09:02:34,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:34,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:34,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:34,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-25 09:02:34,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:34,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:34,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:34,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:34,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:34,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,753 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:34,753 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,754 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:34,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:34,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:34,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:34,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:02:34,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-25 09:02:34,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,774 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:02:34,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 866 [2021-03-25 09:02:34,783 INFO L142 QuantifierPusher]: treesize reduction 13462, result has 1.6 percent of original size [2021-03-25 09:02:34,785 INFO L147 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size 160 [2021-03-25 09:02:34,786 INFO L142 QuantifierPusher]: treesize reduction 60, result has 72.7 percent of original size [2021-03-25 09:02:34,787 INFO L147 QuantifierPusher]: treesize reduction 8, result has 95.0 percent of original size 152 [2021-03-25 09:02:34,961 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-03-25 09:02:34,962 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.9 percent of original size [2021-03-25 09:02:34,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-25 09:02:34,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,964 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:34,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-25 09:02:34,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,966 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:34,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:34,967 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:34,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:34,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:02:34,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:34,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:02:35,032 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.2 percent of original size [2021-03-25 09:02:35,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:35,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-03-25 09:02:35,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-03-25 09:02:35,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-03-25 09:02:35,040 INFO L142 QuantifierPusher]: treesize reduction 46, result has 84.1 percent of original size [2021-03-25 09:02:35,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,042 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:35,043 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:02:35,043 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,045 INFO L142 QuantifierPusher]: treesize reduction 232, result has 46.7 percent of original size [2021-03-25 09:02:35,045 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 11 disjuncts [2021-03-25 09:02:35,046 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,047 INFO L142 QuantifierPusher]: treesize reduction 98, result has 64.7 percent of original size [2021-03-25 09:02:35,047 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:02:35,048 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,048 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,048 INFO L142 QuantifierPusher]: treesize reduction 124, result has 45.1 percent of original size [2021-03-25 09:02:35,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:35,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:02:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:35,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:02:35,119 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:02:35,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:35,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:35,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:35,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:35,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:02:35,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,124 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:02:35,124 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:02:35,125 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,126 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:02:35,126 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:02:35,126 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,127 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-25 09:02:35,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:35,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:35,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:35,156 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:02:35,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:35,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:35,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:35,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:35,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:02:35,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,160 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:35,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,160 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:02:35,160 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:35,161 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,161 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:02:35,162 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:02:35,162 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:35,162 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,162 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:02:35,163 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:02:35,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:35,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:35,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:35,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:02:35,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739596291] [2021-03-25 09:02:35,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:02:35,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:35,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:02:35,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:02:35,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 133 [2021-03-25 09:02:35,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 362 transitions, 9567 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:35,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:35,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 133 [2021-03-25 09:02:35,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:35,951 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-25 09:02:36,846 INFO L129 PetriNetUnfolder]: 338/856 cut-off events. [2021-03-25 09:02:36,847 INFO L130 PetriNetUnfolder]: For 134351/134359 co-relation queries the response was YES. [2021-03-25 09:02:36,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17126 conditions, 856 events. 338/856 cut-off events. For 134351/134359 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5983 event pairs, 17 based on Foata normal form. 5/858 useless extension candidates. Maximal degree in co-relation 16844. Up to 668 conditions per place. [2021-03-25 09:02:36,860 INFO L132 encePairwiseOnDemand]: 115/133 looper letters, 326 selfloop transitions, 56 changer transitions 5/391 dead transitions. [2021-03-25 09:02:36,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 391 transitions, 11985 flow [2021-03-25 09:02:36,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:02:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:02:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 274 transitions. [2021-03-25 09:02:36,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12118531623175587 [2021-03-25 09:02:36,861 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 274 transitions. [2021-03-25 09:02:36,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 274 transitions. [2021-03-25 09:02:36,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:36,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 274 transitions. [2021-03-25 09:02:36,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.11764705882353) internal successors, (274), 17 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:36,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 133.0) internal successors, (2394), 18 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:36,862 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 133.0) internal successors, (2394), 18 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:36,862 INFO L185 Difference]: Start difference. First operand has 406 places, 362 transitions, 9567 flow. Second operand 17 states and 274 transitions. [2021-03-25 09:02:36,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 391 transitions, 11985 flow [2021-03-25 09:02:37,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 391 transitions, 11364 flow, removed 294 selfloop flow, removed 3 redundant places. [2021-03-25 09:02:37,563 INFO L241 Difference]: Finished difference. Result has 426 places, 373 transitions, 9846 flow [2021-03-25 09:02:37,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=8968, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9846, PETRI_PLACES=426, PETRI_TRANSITIONS=373} [2021-03-25 09:02:37,563 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 410 predicate places. [2021-03-25 09:02:37,563 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:37,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 373 transitions, 9846 flow [2021-03-25 09:02:37,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 373 transitions, 9846 flow [2021-03-25 09:02:37,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 373 transitions, 9846 flow [2021-03-25 09:02:37,737 INFO L129 PetriNetUnfolder]: 334/840 cut-off events. [2021-03-25 09:02:37,737 INFO L130 PetriNetUnfolder]: For 139111/139195 co-relation queries the response was YES. [2021-03-25 09:02:37,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16146 conditions, 840 events. 334/840 cut-off events. For 139111/139195 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 5893 event pairs, 14 based on Foata normal form. 1/838 useless extension candidates. Maximal degree in co-relation 15863. Up to 508 conditions per place. [2021-03-25 09:02:37,753 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 09:02:38,257 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:38,257 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:02:38,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 694 [2021-03-25 09:02:38,257 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 373 transitions, 9913 flow [2021-03-25 09:02:38,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:38,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:38,257 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:38,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:38,458 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:38,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:38,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1972370758, now seen corresponding path program 2 times [2021-03-25 09:02:38,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:38,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012763273] [2021-03-25 09:02:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:38,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,474 INFO L142 QuantifierPusher]: treesize reduction 7, result has 46.2 percent of original size [2021-03-25 09:02:38,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:38,478 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-25 09:02:38,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:38,484 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size [2021-03-25 09:02:38,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:38,533 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-03-25 09:02:38,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:38,565 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-25 09:02:38,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:38,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:38,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012763273] [2021-03-25 09:02:38,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200520984] [2021-03-25 09:02:38,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:38,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:38,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:38,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-25 09:02:38,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:38,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:38,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:38,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:38,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,640 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:38,641 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,641 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:38,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,657 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 09:02:38,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:38,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:38,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:38,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,659 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:38,659 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,659 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,660 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:38,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:38,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:02:38,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-25 09:02:38,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-25 09:02:38,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-25 09:02:38,700 INFO L142 QuantifierPusher]: treesize reduction 10728, result has 1.4 percent of original size [2021-03-25 09:02:38,701 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-25 09:02:38,702 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-25 09:02:38,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-25 09:02:38,778 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.4 percent of original size [2021-03-25 09:02:38,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:38,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-03-25 09:02:38,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-03-25 09:02:38,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-03-25 09:02:38,783 INFO L142 QuantifierPusher]: treesize reduction 46, result has 84.5 percent of original size [2021-03-25 09:02:38,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,784 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:38,785 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:02:38,785 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,786 INFO L142 QuantifierPusher]: treesize reduction 274, result has 39.0 percent of original size [2021-03-25 09:02:38,787 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:02:38,787 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,788 INFO L142 QuantifierPusher]: treesize reduction 161, result has 33.2 percent of original size [2021-03-25 09:02:38,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:38,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:02:38,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:02:38,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:02:38,827 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-25 09:02:38,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:38,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:38,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:38,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:38,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:02:38,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,832 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,832 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-25 09:02:38,832 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:02:38,833 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,834 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-25 09:02:38,834 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:38,834 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,835 INFO L142 QuantifierPusher]: treesize reduction 115, result has 25.3 percent of original size [2021-03-25 09:02:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:38,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:38,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:38,860 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 09:02:38,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:38,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:38,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:38,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:02:38,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:38,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,864 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-25 09:02:38,865 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:38,865 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,865 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-25 09:02:38,866 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 2, 1] term [2021-03-25 09:02:38,866 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:38,866 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,866 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:02:38,867 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:02:38,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:38,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:38,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:38,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:02:38,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957094431] [2021-03-25 09:02:38,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:02:38,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:38,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:02:38,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:02:38,888 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2021-03-25 09:02:38,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 373 transitions, 9913 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:38,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:38,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2021-03-25 09:02:38,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:39,933 INFO L129 PetriNetUnfolder]: 347/883 cut-off events. [2021-03-25 09:02:39,933 INFO L130 PetriNetUnfolder]: For 152212/152220 co-relation queries the response was YES. [2021-03-25 09:02:39,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18140 conditions, 883 events. 347/883 cut-off events. For 152212/152220 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6258 event pairs, 14 based on Foata normal form. 5/885 useless extension candidates. Maximal degree in co-relation 17848. Up to 596 conditions per place. [2021-03-25 09:02:39,947 INFO L132 encePairwiseOnDemand]: 112/136 looper letters, 289 selfloop transitions, 115 changer transitions 6/414 dead transitions. [2021-03-25 09:02:39,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 414 transitions, 12989 flow [2021-03-25 09:02:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:02:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:02:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 284 transitions. [2021-03-25 09:02:39,949 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12283737024221453 [2021-03-25 09:02:39,949 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 284 transitions. [2021-03-25 09:02:39,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 284 transitions. [2021-03-25 09:02:39,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:39,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 284 transitions. [2021-03-25 09:02:39,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.705882352941178) internal successors, (284), 17 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:39,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:39,950 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 136.0) internal successors, (2448), 18 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:39,950 INFO L185 Difference]: Start difference. First operand has 424 places, 373 transitions, 9913 flow. Second operand 17 states and 284 transitions. [2021-03-25 09:02:39,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 414 transitions, 12989 flow [2021-03-25 09:02:40,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 414 transitions, 12286 flow, removed 324 selfloop flow, removed 8 redundant places. [2021-03-25 09:02:40,762 INFO L241 Difference]: Finished difference. Result has 438 places, 387 transitions, 10494 flow [2021-03-25 09:02:40,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=9230, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10494, PETRI_PLACES=438, PETRI_TRANSITIONS=387} [2021-03-25 09:02:40,763 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 422 predicate places. [2021-03-25 09:02:40,763 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:40,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 438 places, 387 transitions, 10494 flow [2021-03-25 09:02:40,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 438 places, 387 transitions, 10494 flow [2021-03-25 09:02:40,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 387 transitions, 10494 flow [2021-03-25 09:02:40,941 INFO L129 PetriNetUnfolder]: 343/870 cut-off events. [2021-03-25 09:02:40,941 INFO L130 PetriNetUnfolder]: For 151857/151921 co-relation queries the response was YES. [2021-03-25 09:02:40,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17011 conditions, 870 events. 343/870 cut-off events. For 151857/151921 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6162 event pairs, 13 based on Foata normal form. 3/870 useless extension candidates. Maximal degree in co-relation 16721. Up to 518 conditions per place. [2021-03-25 09:02:40,958 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-25 09:02:41,463 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 09:02:41,463 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 09:02:41,463 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 700 [2021-03-25 09:02:41,464 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 387 transitions, 10549 flow [2021-03-25 09:02:41,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:41,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:41,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:41,664 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable577 [2021-03-25 09:02:41,664 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:41,665 INFO L82 PathProgramCache]: Analyzing trace with hash 898634980, now seen corresponding path program 1 times [2021-03-25 09:02:41,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:41,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520252081] [2021-03-25 09:02:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:41,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:41,696 INFO L142 QuantifierPusher]: treesize reduction 136, result has 18.6 percent of original size [2021-03-25 09:02:41,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:02:41,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:41,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:41,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520252081] [2021-03-25 09:02:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165310625] [2021-03-25 09:02:41,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:41,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:02:41,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:41,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:41,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:02:41,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-25 09:02:41,781 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-25 09:02:41,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:41,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:41,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-03-25 09:02:41,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:41,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-03-25 09:02:41,822 INFO L142 QuantifierPusher]: treesize reduction 2416, result has 14.9 percent of original size [2021-03-25 09:02:41,823 INFO L147 QuantifierPusher]: treesize reduction 14, result has 96.7 percent of original size 410 [2021-03-25 09:02:41,824 INFO L142 QuantifierPusher]: treesize reduction 14, result has 96.7 percent of original size [2021-03-25 09:02:41,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-03-25 09:02:42,087 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2021-03-25 09:02:42,088 INFO L142 QuantifierPusher]: treesize reduction 129, result has 53.8 percent of original size [2021-03-25 09:02:42,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:02:42,090 INFO L147 QuantifierPusher]: treesize reduction 40, result has 73.3 percent of original size 110 [2021-03-25 09:02:42,090 INFO L142 QuantifierPusher]: treesize reduction 40, result has 73.5 percent of original size [2021-03-25 09:02:42,091 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-25 09:02:42,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:02:42,092 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-25 09:02:42,093 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:42,093 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,094 INFO L142 QuantifierPusher]: treesize reduction 90, result has 59.3 percent of original size [2021-03-25 09:02:42,095 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:42,096 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,096 INFO L142 QuantifierPusher]: treesize reduction 90, result has 45.8 percent of original size [2021-03-25 09:02:42,097 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:42,097 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,097 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.9 percent of original size [2021-03-25 09:02:42,099 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:42,099 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:42,099 INFO L142 QuantifierPusher]: treesize reduction 34, result has 43.3 percent of original size [2021-03-25 09:02:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:42,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:42,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:42,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:42,138 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:42,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:42,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:42,140 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:42,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:42,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:42,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:42,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814450956] [2021-03-25 09:02:42,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:42,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:42,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:42,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:42,146 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 139 [2021-03-25 09:02:42,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 387 transitions, 10549 flow. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:42,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:42,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 139 [2021-03-25 09:02:42,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:42,881 INFO L129 PetriNetUnfolder]: 347/867 cut-off events. [2021-03-25 09:02:42,881 INFO L130 PetriNetUnfolder]: For 160195/160203 co-relation queries the response was YES. [2021-03-25 09:02:42,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17981 conditions, 867 events. 347/867 cut-off events. For 160195/160203 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6056 event pairs, 14 based on Foata normal form. 3/865 useless extension candidates. Maximal degree in co-relation 17682. Up to 684 conditions per place. [2021-03-25 09:02:42,895 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 348 selfloop transitions, 42 changer transitions 0/395 dead transitions. [2021-03-25 09:02:42,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 395 transitions, 11903 flow [2021-03-25 09:02:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 09:02:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 09:02:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2021-03-25 09:02:42,896 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.14964028776978416 [2021-03-25 09:02:42,896 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 208 transitions. [2021-03-25 09:02:42,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 208 transitions. [2021-03-25 09:02:42,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:42,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 208 transitions. [2021-03-25 09:02:42,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 20.8) internal successors, (208), 10 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:42,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:42,897 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:42,897 INFO L185 Difference]: Start difference. First operand has 436 places, 387 transitions, 10549 flow. Second operand 10 states and 208 transitions. [2021-03-25 09:02:42,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 395 transitions, 11903 flow [2021-03-25 09:02:43,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 395 transitions, 10914 flow, removed 471 selfloop flow, removed 9 redundant places. [2021-03-25 09:02:43,691 INFO L241 Difference]: Finished difference. Result has 436 places, 387 transitions, 9798 flow [2021-03-25 09:02:43,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9542, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9798, PETRI_PLACES=436, PETRI_TRANSITIONS=387} [2021-03-25 09:02:43,691 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 420 predicate places. [2021-03-25 09:02:43,691 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:43,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 436 places, 387 transitions, 9798 flow [2021-03-25 09:02:43,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 436 places, 387 transitions, 9798 flow [2021-03-25 09:02:43,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 436 places, 387 transitions, 9798 flow [2021-03-25 09:02:43,855 INFO L129 PetriNetUnfolder]: 344/861 cut-off events. [2021-03-25 09:02:43,855 INFO L130 PetriNetUnfolder]: For 144764/144796 co-relation queries the response was YES. [2021-03-25 09:02:43,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16338 conditions, 861 events. 344/861 cut-off events. For 144764/144796 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6068 event pairs, 13 based on Foata normal form. 5/863 useless extension candidates. Maximal degree in co-relation 16052. Up to 507 conditions per place. [2021-03-25 09:02:43,871 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 09:02:43,889 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:43,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:43,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 199 [2021-03-25 09:02:43,890 INFO L480 AbstractCegarLoop]: Abstraction has has 436 places, 387 transitions, 9798 flow [2021-03-25 09:02:43,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:43,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:43,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:44,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable586 [2021-03-25 09:02:44,092 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:44,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:44,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1490645009, now seen corresponding path program 1 times [2021-03-25 09:02:44,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:44,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231887852] [2021-03-25 09:02:44,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:44,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:44,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:44,106 INFO L142 QuantifierPusher]: treesize reduction 28, result has 42.9 percent of original size [2021-03-25 09:02:44,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:02:44,115 INFO L142 QuantifierPusher]: treesize reduction 142, result has 22.8 percent of original size [2021-03-25 09:02:44,115 INFO L147 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size 20 [2021-03-25 09:02:44,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:44,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:44,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:44,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:44,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:44,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231887852] [2021-03-25 09:02:44,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:44,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:44,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111447115] [2021-03-25 09:02:44,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:44,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:44,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:44,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:44,153 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 139 [2021-03-25 09:02:44,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 387 transitions, 9798 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:44,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:44,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 139 [2021-03-25 09:02:44,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:44,583 INFO L129 PetriNetUnfolder]: 346/860 cut-off events. [2021-03-25 09:02:44,584 INFO L130 PetriNetUnfolder]: For 148020/148028 co-relation queries the response was YES. [2021-03-25 09:02:44,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17167 conditions, 860 events. 346/860 cut-off events. For 148020/148028 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 5977 event pairs, 15 based on Foata normal form. 2/859 useless extension candidates. Maximal degree in co-relation 16872. Up to 679 conditions per place. [2021-03-25 09:02:44,598 INFO L132 encePairwiseOnDemand]: 122/139 looper letters, 344 selfloop transitions, 43 changer transitions 0/392 dead transitions. [2021-03-25 09:02:44,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 392 transitions, 10920 flow [2021-03-25 09:02:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:02:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:02:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2021-03-25 09:02:44,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17163412127440905 [2021-03-25 09:02:44,599 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 167 transitions. [2021-03-25 09:02:44,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 167 transitions. [2021-03-25 09:02:44,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:44,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 167 transitions. [2021-03-25 09:02:44,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:44,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:44,600 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 139.0) internal successors, (1112), 8 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:44,600 INFO L185 Difference]: Start difference. First operand has 436 places, 387 transitions, 9798 flow. Second operand 7 states and 167 transitions. [2021-03-25 09:02:44,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 392 transitions, 10920 flow [2021-03-25 09:02:45,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 392 transitions, 10697 flow, removed 61 selfloop flow, removed 8 redundant places. [2021-03-25 09:02:45,408 INFO L241 Difference]: Finished difference. Result has 433 places, 385 transitions, 9607 flow [2021-03-25 09:02:45,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9521, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9607, PETRI_PLACES=433, PETRI_TRANSITIONS=385} [2021-03-25 09:02:45,408 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 417 predicate places. [2021-03-25 09:02:45,408 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:45,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 385 transitions, 9607 flow [2021-03-25 09:02:45,408 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 385 transitions, 9607 flow [2021-03-25 09:02:45,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 433 places, 385 transitions, 9607 flow [2021-03-25 09:02:45,569 INFO L129 PetriNetUnfolder]: 343/859 cut-off events. [2021-03-25 09:02:45,569 INFO L130 PetriNetUnfolder]: For 142022/142086 co-relation queries the response was YES. [2021-03-25 09:02:45,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16163 conditions, 859 events. 343/859 cut-off events. For 142022/142086 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6029 event pairs, 9 based on Foata normal form. 3/859 useless extension candidates. Maximal degree in co-relation 15878. Up to 505 conditions per place. [2021-03-25 09:02:45,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-25 09:02:45,602 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:45,603 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:45,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 195 [2021-03-25 09:02:45,603 INFO L480 AbstractCegarLoop]: Abstraction has has 433 places, 385 transitions, 9607 flow [2021-03-25 09:02:45,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:45,603 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:45,603 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:45,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-03-25 09:02:45,603 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:45,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2078733865, now seen corresponding path program 1 times [2021-03-25 09:02:45,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:45,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137172431] [2021-03-25 09:02:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:45,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:45,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:45,649 INFO L142 QuantifierPusher]: treesize reduction 100, result has 34.6 percent of original size [2021-03-25 09:02:45,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:45,695 INFO L142 QuantifierPusher]: treesize reduction 100, result has 27.5 percent of original size [2021-03-25 09:02:45,695 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size 31 [2021-03-25 09:02:45,735 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:02:45,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:02:45,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:02:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:45,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137172431] [2021-03-25 09:02:45,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792143088] [2021-03-25 09:02:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:45,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-25 09:02:45,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:45,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:45,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:45,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:45,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:45,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,836 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:45,836 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,837 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,837 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:45,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:45,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:45,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:45,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-25 09:02:45,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,854 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:02:45,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-03-25 09:02:45,857 INFO L142 QuantifierPusher]: treesize reduction 694, result has 13.9 percent of original size [2021-03-25 09:02:45,857 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:45,858 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,858 INFO L142 QuantifierPusher]: treesize reduction 66, result has 48.0 percent of original size [2021-03-25 09:02:45,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:02:45,860 INFO L147 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size 53 [2021-03-25 09:02:45,860 INFO L142 QuantifierPusher]: treesize reduction 40, result has 57.0 percent of original size [2021-03-25 09:02:45,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:45,894 INFO L142 QuantifierPusher]: treesize reduction 9, result has 88.9 percent of original size [2021-03-25 09:02:45,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-25 09:02:45,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:45,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:02:45,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,897 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:45,897 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,897 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:45,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:45,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:45,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:02:45,934 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.7 percent of original size [2021-03-25 09:02:45,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:45,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-25 09:02:45,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:45,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:45,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:02:45,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-25 09:02:45,938 INFO L142 QuantifierPusher]: treesize reduction 178, result has 37.1 percent of original size [2021-03-25 09:02:45,940 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-25 09:02:45,940 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-25 09:02:45,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-25 09:02:46,012 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.8 percent of original size [2021-03-25 09:02:46,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:02:46,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:02:46,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-25 09:02:46,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-25 09:02:46,016 INFO L142 QuantifierPusher]: treesize reduction 62, result has 74.1 percent of original size [2021-03-25 09:02:46,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,018 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:02:46,018 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:02:46,018 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,019 INFO L142 QuantifierPusher]: treesize reduction 178, result has 45.4 percent of original size [2021-03-25 09:02:46,020 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:02:46,020 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,020 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,021 INFO L142 QuantifierPusher]: treesize reduction 152, result has 40.9 percent of original size [2021-03-25 09:02:46,022 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:02:46,023 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,023 INFO L142 QuantifierPusher]: treesize reduction 45, result has 48.3 percent of original size [2021-03-25 09:02:46,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:02:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:02:46,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:02:46,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:02:46,050 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-03-25 09:02:46,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:02:46,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:02:46,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,051 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:46,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:46,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:02:46,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:46,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:02:46,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:46,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:46,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-25 09:02:46,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371178503] [2021-03-25 09:02:46,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-25 09:02:46,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:46,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-25 09:02:46,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-25 09:02:46,076 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 139 [2021-03-25 09:02:46,077 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 385 transitions, 9607 flow. Second operand has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:46,077 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:46,077 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 139 [2021-03-25 09:02:46,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:47,332 INFO L129 PetriNetUnfolder]: 355/890 cut-off events. [2021-03-25 09:02:47,332 INFO L130 PetriNetUnfolder]: For 149670/149678 co-relation queries the response was YES. [2021-03-25 09:02:47,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17724 conditions, 890 events. 355/890 cut-off events. For 149670/149678 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6261 event pairs, 14 based on Foata normal form. 2/889 useless extension candidates. Maximal degree in co-relation 17430. Up to 717 conditions per place. [2021-03-25 09:02:47,347 INFO L132 encePairwiseOnDemand]: 120/139 looper letters, 343 selfloop transitions, 59 changer transitions 3/409 dead transitions. [2021-03-25 09:02:47,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 409 transitions, 11672 flow [2021-03-25 09:02:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:02:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:02:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 252 transitions. [2021-03-25 09:02:47,349 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12086330935251799 [2021-03-25 09:02:47,349 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 252 transitions. [2021-03-25 09:02:47,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 252 transitions. [2021-03-25 09:02:47,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:47,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 252 transitions. [2021-03-25 09:02:47,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 16.8) internal successors, (252), 15 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:47,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:47,350 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 139.0) internal successors, (2224), 16 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:47,350 INFO L185 Difference]: Start difference. First operand has 433 places, 385 transitions, 9607 flow. Second operand 15 states and 252 transitions. [2021-03-25 09:02:47,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 409 transitions, 11672 flow [2021-03-25 09:02:48,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 409 transitions, 11590 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 09:02:48,214 INFO L241 Difference]: Finished difference. Result has 449 places, 400 transitions, 10579 flow [2021-03-25 09:02:48,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=9527, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10579, PETRI_PLACES=449, PETRI_TRANSITIONS=400} [2021-03-25 09:02:48,214 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 433 predicate places. [2021-03-25 09:02:48,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:48,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 449 places, 400 transitions, 10579 flow [2021-03-25 09:02:48,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 449 places, 400 transitions, 10579 flow [2021-03-25 09:02:48,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 447 places, 400 transitions, 10579 flow [2021-03-25 09:02:48,390 INFO L129 PetriNetUnfolder]: 352/880 cut-off events. [2021-03-25 09:02:48,390 INFO L130 PetriNetUnfolder]: For 156542/156574 co-relation queries the response was YES. [2021-03-25 09:02:48,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17175 conditions, 880 events. 352/880 cut-off events. For 156542/156574 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6180 event pairs, 8 based on Foata normal form. 5/882 useless extension candidates. Maximal degree in co-relation 16979. Up to 524 conditions per place. [2021-03-25 09:02:48,409 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-25 09:02:48,513 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-25 09:02:48,668 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2021-03-25 09:02:48,762 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:48,762 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:02:48,762 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 548 [2021-03-25 09:02:48,765 INFO L480 AbstractCegarLoop]: Abstraction has has 447 places, 400 transitions, 10603 flow [2021-03-25 09:02:48,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 11.0) internal successors, (154), 14 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:48,765 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:48,765 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:48,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable592 [2021-03-25 09:02:48,972 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:48,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:48,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2081346236, now seen corresponding path program 1 times [2021-03-25 09:02:48,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:48,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918062101] [2021-03-25 09:02:48,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:48,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:48,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:48,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:48,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:02:48,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:48,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:49,001 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:02:49,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:49,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:02:49,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:49,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:49,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918062101] [2021-03-25 09:02:49,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082717927] [2021-03-25 09:02:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:49,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-25 09:02:49,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:49,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:49,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,101 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:49,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:49,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,103 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:49,103 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,104 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:49,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,119 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 09:02:49,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:49,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:49,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:49,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,122 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:49,122 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,122 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,123 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:49,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:49,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-25 09:02:49,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-25 09:02:49,151 INFO L142 QuantifierPusher]: treesize reduction 5415, result has 1.9 percent of original size [2021-03-25 09:02:49,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:02:49,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:02:49,215 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.0 percent of original size [2021-03-25 09:02:49,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-25 09:02:49,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-03-25 09:02:49,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-25 09:02:49,220 INFO L142 QuantifierPusher]: treesize reduction 2, result has 98.5 percent of original size [2021-03-25 09:02:49,220 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:49,221 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,222 INFO L142 QuantifierPusher]: treesize reduction 90, result has 59.3 percent of original size [2021-03-25 09:02:49,223 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:02:49,224 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,224 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,225 INFO L142 QuantifierPusher]: treesize reduction 90, result has 45.8 percent of original size [2021-03-25 09:02:49,225 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:49,226 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,226 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,226 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.9 percent of original size [2021-03-25 09:02:49,226 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:49,227 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:49,228 INFO L142 QuantifierPusher]: treesize reduction 34, result has 43.3 percent of original size [2021-03-25 09:02:49,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:49,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:02:49,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:49,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:49,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:49,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:02:49,253 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:02:49,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:49,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:49,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:49,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:49,268 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:49,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:49,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:49,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:49,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:02:49,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518781154] [2021-03-25 09:02:49,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-25 09:02:49,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:49,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-25 09:02:49,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-25 09:02:49,275 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-25 09:02:49,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 400 transitions, 10603 flow. Second operand has 12 states, 12 states have (on average 13.0) internal successors, (156), 12 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:49,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:49,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-25 09:02:49,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:49,891 INFO L129 PetriNetUnfolder]: 355/888 cut-off events. [2021-03-25 09:02:49,891 INFO L130 PetriNetUnfolder]: For 164227/164235 co-relation queries the response was YES. [2021-03-25 09:02:49,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18339 conditions, 888 events. 355/888 cut-off events. For 164227/164235 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6217 event pairs, 13 based on Foata normal form. 3/888 useless extension candidates. Maximal degree in co-relation 18141. Up to 579 conditions per place. [2021-03-25 09:02:49,906 INFO L132 encePairwiseOnDemand]: 114/140 looper letters, 304 selfloop transitions, 111 changer transitions 1/421 dead transitions. [2021-03-25 09:02:49,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 421 transitions, 12747 flow [2021-03-25 09:02:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-25 09:02:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-25 09:02:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 255 transitions. [2021-03-25 09:02:49,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1401098901098901 [2021-03-25 09:02:49,907 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 255 transitions. [2021-03-25 09:02:49,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 255 transitions. [2021-03-25 09:02:49,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:49,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 255 transitions. [2021-03-25 09:02:49,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 19.615384615384617) internal successors, (255), 13 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:49,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:49,909 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:49,909 INFO L185 Difference]: Start difference. First operand has 447 places, 400 transitions, 10603 flow. Second operand 13 states and 255 transitions. [2021-03-25 09:02:49,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 421 transitions, 12747 flow [2021-03-25 09:02:50,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 421 transitions, 11983 flow, removed 376 selfloop flow, removed 6 redundant places. [2021-03-25 09:02:50,819 INFO L241 Difference]: Finished difference. Result has 453 places, 398 transitions, 10141 flow [2021-03-25 09:02:50,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=9845, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10141, PETRI_PLACES=453, PETRI_TRANSITIONS=398} [2021-03-25 09:02:50,820 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-25 09:02:50,820 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:50,820 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 398 transitions, 10141 flow [2021-03-25 09:02:50,820 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 398 transitions, 10141 flow [2021-03-25 09:02:50,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 453 places, 398 transitions, 10141 flow [2021-03-25 09:02:51,016 INFO L129 PetriNetUnfolder]: 352/883 cut-off events. [2021-03-25 09:02:51,016 INFO L130 PetriNetUnfolder]: For 158735/158767 co-relation queries the response was YES. [2021-03-25 09:02:51,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17102 conditions, 883 events. 352/883 cut-off events. For 158735/158767 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6247 event pairs, 9 based on Foata normal form. 5/885 useless extension candidates. Maximal degree in co-relation 16806. Up to 512 conditions per place. [2021-03-25 09:02:51,032 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 09:02:51,050 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:51,050 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:51,050 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-25 09:02:51,050 INFO L480 AbstractCegarLoop]: Abstraction has has 453 places, 398 transitions, 10141 flow [2021-03-25 09:02:51,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 13.0) internal successors, (156), 12 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:51,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:51,050 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:51,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:51,252 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:51,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1702150661, now seen corresponding path program 1 times [2021-03-25 09:02:51,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:51,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295264583] [2021-03-25 09:02:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:51,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:51,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:02:51,295 INFO L142 QuantifierPusher]: treesize reduction 65, result has 24.4 percent of original size [2021-03-25 09:02:51,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:02:51,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:51,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:51,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295264583] [2021-03-25 09:02:51,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029757462] [2021-03-25 09:02:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:51,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:02:51,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:51,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,380 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,381 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:51,382 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:51,382 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:51,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:51,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:51,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-25 09:02:51,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-25 09:02:51,399 INFO L142 QuantifierPusher]: treesize reduction 1519, result has 5.5 percent of original size [2021-03-25 09:02:51,400 INFO L147 QuantifierPusher]: treesize reduction 33, result has 62.5 percent of original size 55 [2021-03-25 09:02:51,400 INFO L142 QuantifierPusher]: treesize reduction 33, result has 62.5 percent of original size [2021-03-25 09:02:51,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,426 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.7 percent of original size [2021-03-25 09:02:51,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:02:51,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:51,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:51,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-25 09:02:51,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,429 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:51,429 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:51,429 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:51,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:02:51,463 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-25 09:02:51,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-25 09:02:51,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,464 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:51,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:02:51,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-25 09:02:51,466 INFO L142 QuantifierPusher]: treesize reduction 99, result has 32.7 percent of original size [2021-03-25 09:02:51,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:51,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:51,468 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:51,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:51,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:51,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-25 09:02:51,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853875187] [2021-03-25 09:02:51,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 09:02:51,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:51,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 09:02:51,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-25 09:02:51,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 140 [2021-03-25 09:02:51,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 398 transitions, 10141 flow. Second operand has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:51,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:51,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 140 [2021-03-25 09:02:51,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:52,117 INFO L129 PetriNetUnfolder]: 360/899 cut-off events. [2021-03-25 09:02:52,117 INFO L130 PetriNetUnfolder]: For 169279/169319 co-relation queries the response was YES. [2021-03-25 09:02:52,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18248 conditions, 899 events. 360/899 cut-off events. For 169279/169319 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6304 event pairs, 14 based on Foata normal form. 4/900 useless extension candidates. Maximal degree in co-relation 17945. Up to 601 conditions per place. [2021-03-25 09:02:52,132 INFO L132 encePairwiseOnDemand]: 127/140 looper letters, 332 selfloop transitions, 45 changer transitions 0/408 dead transitions. [2021-03-25 09:02:52,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 408 transitions, 11498 flow [2021-03-25 09:02:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:02:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:02:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2021-03-25 09:02:52,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.17767857142857144 [2021-03-25 09:02:52,133 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 199 transitions. [2021-03-25 09:02:52,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 199 transitions. [2021-03-25 09:02:52,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:52,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 199 transitions. [2021-03-25 09:02:52,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.875) internal successors, (199), 8 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:52,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:52,134 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 140.0) internal successors, (1260), 9 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:52,134 INFO L185 Difference]: Start difference. First operand has 453 places, 398 transitions, 10141 flow. Second operand 8 states and 199 transitions. [2021-03-25 09:02:52,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 408 transitions, 11498 flow [2021-03-25 09:02:53,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 408 transitions, 11298 flow, removed 28 selfloop flow, removed 9 redundant places. [2021-03-25 09:02:53,009 INFO L241 Difference]: Finished difference. Result has 452 places, 403 transitions, 10353 flow [2021-03-25 09:02:53,009 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=9951, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10353, PETRI_PLACES=452, PETRI_TRANSITIONS=403} [2021-03-25 09:02:53,009 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 436 predicate places. [2021-03-25 09:02:53,009 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:53,009 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 403 transitions, 10353 flow [2021-03-25 09:02:53,009 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 403 transitions, 10353 flow [2021-03-25 09:02:53,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 403 transitions, 10353 flow [2021-03-25 09:02:53,190 INFO L129 PetriNetUnfolder]: 358/901 cut-off events. [2021-03-25 09:02:53,190 INFO L130 PetriNetUnfolder]: For 162843/162949 co-relation queries the response was YES. [2021-03-25 09:02:53,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17437 conditions, 901 events. 358/901 cut-off events. For 162843/162949 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6401 event pairs, 14 based on Foata normal form. 1/899 useless extension candidates. Maximal degree in co-relation 17208. Up to 523 conditions per place. [2021-03-25 09:02:53,208 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 09:02:53,227 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:53,227 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:53,227 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-25 09:02:53,227 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 403 transitions, 10353 flow [2021-03-25 09:02:53,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 16.0) internal successors, (144), 9 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:53,227 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:53,227 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:53,427 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable606 [2021-03-25 09:02:53,427 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1630414243, now seen corresponding path program 1 times [2021-03-25 09:02:53,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:53,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670113970] [2021-03-25 09:02:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:53,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:53,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:53,445 INFO L142 QuantifierPusher]: treesize reduction 1911, result has 6.1 percent of original size [2021-03-25 09:02:53,446 INFO L147 QuantifierPusher]: treesize reduction 7, result has 94.4 percent of original size 117 [2021-03-25 09:02:53,472 INFO L142 QuantifierPusher]: treesize reduction 2476, result has 22.6 percent of original size [2021-03-25 09:02:53,475 INFO L147 QuantifierPusher]: treesize reduction 40, result has 94.5 percent of original size 683 [2021-03-25 09:02:53,700 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 34 [2021-03-25 09:02:53,702 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-25 09:02:53,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:53,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:53,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:53,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:53,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670113970] [2021-03-25 09:02:53,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 09:02:53,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 09:02:53,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324792697] [2021-03-25 09:02:53,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 09:02:53,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:53,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 09:02:53,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 09:02:53,720 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-25 09:02:53,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 403 transitions, 10353 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:53,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:53,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-25 09:02:53,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:54,367 INFO L129 PetriNetUnfolder]: 360/896 cut-off events. [2021-03-25 09:02:54,367 INFO L130 PetriNetUnfolder]: For 166785/166793 co-relation queries the response was YES. [2021-03-25 09:02:54,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18277 conditions, 896 events. 360/896 cut-off events. For 166785/166793 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6270 event pairs, 16 based on Foata normal form. 1/894 useless extension candidates. Maximal degree in co-relation 18042. Up to 718 conditions per place. [2021-03-25 09:02:54,382 INFO L132 encePairwiseOnDemand]: 128/140 looper letters, 365 selfloop transitions, 32 changer transitions 2/404 dead transitions. [2021-03-25 09:02:54,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 404 transitions, 11246 flow [2021-03-25 09:02:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 09:02:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 09:02:54,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2021-03-25 09:02:54,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1761904761904762 [2021-03-25 09:02:54,383 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 148 transitions. [2021-03-25 09:02:54,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 148 transitions. [2021-03-25 09:02:54,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:54,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 148 transitions. [2021-03-25 09:02:54,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:54,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:54,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:54,384 INFO L185 Difference]: Start difference. First operand has 452 places, 403 transitions, 10353 flow. Second operand 6 states and 148 transitions. [2021-03-25 09:02:54,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 404 transitions, 11246 flow [2021-03-25 09:02:55,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 404 transitions, 11007 flow, removed 85 selfloop flow, removed 4 redundant places. [2021-03-25 09:02:55,288 INFO L241 Difference]: Finished difference. Result has 453 places, 400 transitions, 10107 flow [2021-03-25 09:02:55,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=10109, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10107, PETRI_PLACES=453, PETRI_TRANSITIONS=400} [2021-03-25 09:02:55,288 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-25 09:02:55,288 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:55,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 400 transitions, 10107 flow [2021-03-25 09:02:55,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 400 transitions, 10107 flow [2021-03-25 09:02:55,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 446 places, 400 transitions, 10107 flow [2021-03-25 09:02:55,465 INFO L129 PetriNetUnfolder]: 357/893 cut-off events. [2021-03-25 09:02:55,466 INFO L130 PetriNetUnfolder]: For 161319/161425 co-relation queries the response was YES. [2021-03-25 09:02:55,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17200 conditions, 893 events. 357/893 cut-off events. For 161319/161425 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6305 event pairs, 14 based on Foata normal form. 1/891 useless extension candidates. Maximal degree in co-relation 16971. Up to 521 conditions per place. [2021-03-25 09:02:55,484 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 09:02:55,504 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:55,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:55,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 216 [2021-03-25 09:02:55,504 INFO L480 AbstractCegarLoop]: Abstraction has has 446 places, 400 transitions, 10107 flow [2021-03-25 09:02:55,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:55,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:55,504 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:55,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-25 09:02:55,504 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:55,504 INFO L82 PathProgramCache]: Analyzing trace with hash -2010657860, now seen corresponding path program 2 times [2021-03-25 09:02:55,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:55,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396586253] [2021-03-25 09:02:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:55,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:02:55,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:02:55,528 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-25 09:02:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:55,539 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-25 09:02:55,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:02:55,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:55,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:55,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396586253] [2021-03-25 09:02:55,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645592365] [2021-03-25 09:02:55,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:55,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:02:55,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:02:55,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-25 09:02:55,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:55,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:55,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:55,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,604 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,604 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,605 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,619 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-25 09:02:55,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:55,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:55,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:55,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,621 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,621 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,621 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,621 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:02:55,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:55,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-03-25 09:02:55,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-25 09:02:55,641 INFO L142 QuantifierPusher]: treesize reduction 5415, result has 1.9 percent of original size [2021-03-25 09:02:55,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:02:55,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:02:55,693 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.1 percent of original size [2021-03-25 09:02:55,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-25 09:02:55,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:02:55,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:02:55,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,697 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-25 09:02:55,697 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,697 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,697 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:02:55,697 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,698 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:02:55,699 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,699 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,700 INFO L142 QuantifierPusher]: treesize reduction 50, result has 55.4 percent of original size [2021-03-25 09:02:55,700 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:55,700 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,716 INFO L142 QuantifierPusher]: treesize reduction 53, result has 17.2 percent of original size [2021-03-25 09:02:55,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:02:55,717 INFO L147 QuantifierPusher]: treesize reduction 8, result has 65.2 percent of original size 15 [2021-03-25 09:02:55,718 INFO L147 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size 42 [2021-03-25 09:02:55,718 INFO L142 QuantifierPusher]: treesize reduction 8, result has 84.0 percent of original size [2021-03-25 09:02:55,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:55,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:55,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:55,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:55,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 09:02:55,745 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.1 percent of original size [2021-03-25 09:02:55,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-25 09:02:55,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,746 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-25 09:02:55,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:02:55,748 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.1 percent of original size [2021-03-25 09:02:55,748 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-25 09:02:55,748 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:55,749 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-25 09:02:55,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:55,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:55,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:02:55,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:55,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:55,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:55,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-25 09:02:55,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637546662] [2021-03-25 09:02:55,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:02:55,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:55,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:02:55,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:02:55,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 140 [2021-03-25 09:02:55,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 400 transitions, 10107 flow. Second operand has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:55,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:55,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 140 [2021-03-25 09:02:55,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:56,357 INFO L129 PetriNetUnfolder]: 358/886 cut-off events. [2021-03-25 09:02:56,357 INFO L130 PetriNetUnfolder]: For 161984/161992 co-relation queries the response was YES. [2021-03-25 09:02:56,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17992 conditions, 886 events. 358/886 cut-off events. For 161984/161992 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6168 event pairs, 14 based on Foata normal form. 3/886 useless extension candidates. Maximal degree in co-relation 17761. Up to 589 conditions per place. [2021-03-25 09:02:56,375 INFO L132 encePairwiseOnDemand]: 115/140 looper letters, 306 selfloop transitions, 107 changer transitions 3/421 dead transitions. [2021-03-25 09:02:56,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 421 transitions, 11983 flow [2021-03-25 09:02:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:02:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:02:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2021-03-25 09:02:56,376 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1474025974025974 [2021-03-25 09:02:56,376 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 227 transitions. [2021-03-25 09:02:56,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 227 transitions. [2021-03-25 09:02:56,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:56,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 227 transitions. [2021-03-25 09:02:56,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 20.636363636363637) internal successors, (227), 11 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:56,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:56,377 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:56,377 INFO L185 Difference]: Start difference. First operand has 446 places, 400 transitions, 10107 flow. Second operand 11 states and 227 transitions. [2021-03-25 09:02:56,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 421 transitions, 11983 flow [2021-03-25 09:02:57,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 421 transitions, 11901 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 09:02:57,312 INFO L241 Difference]: Finished difference. Result has 453 places, 398 transitions, 10196 flow [2021-03-25 09:02:57,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=10025, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10196, PETRI_PLACES=453, PETRI_TRANSITIONS=398} [2021-03-25 09:02:57,312 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 437 predicate places. [2021-03-25 09:02:57,312 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:57,312 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 453 places, 398 transitions, 10196 flow [2021-03-25 09:02:57,312 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 453 places, 398 transitions, 10196 flow [2021-03-25 09:02:57,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 398 transitions, 10196 flow [2021-03-25 09:02:57,491 INFO L129 PetriNetUnfolder]: 355/883 cut-off events. [2021-03-25 09:02:57,491 INFO L130 PetriNetUnfolder]: For 159720/159823 co-relation queries the response was YES. [2021-03-25 09:02:57,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17138 conditions, 883 events. 355/883 cut-off events. For 159720/159823 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6179 event pairs, 14 based on Foata normal form. 3/883 useless extension candidates. Maximal degree in co-relation 16914. Up to 517 conditions per place. [2021-03-25 09:02:57,509 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-25 09:02:57,726 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:57,727 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:02:57,727 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 415 [2021-03-25 09:02:57,727 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 398 transitions, 10216 flow [2021-03-25 09:02:57,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.0) internal successors, (143), 11 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:57,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:57,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:02:57,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable610 [2021-03-25 09:02:57,928 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:02:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:02:57,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1418951216, now seen corresponding path program 1 times [2021-03-25 09:02:57,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:02:57,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280681837] [2021-03-25 09:02:57,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:02:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:57,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:57,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:57,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:57,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 09:02:57,950 INFO L142 QuantifierPusher]: treesize reduction 2966, result has 17.2 percent of original size [2021-03-25 09:02:57,952 INFO L147 QuantifierPusher]: treesize reduction 468, result has 24.1 percent of original size 149 [2021-03-25 09:02:58,029 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-25 09:02:58,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 09:02:58,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:58,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280681837] [2021-03-25 09:02:58,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966059053] [2021-03-25 09:02:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:02:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:02:58,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:02:58,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:02:58,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:58,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:58,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:02:58,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:02:58,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,099 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:58,099 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:58,100 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:58,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:58,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:02:58,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:58,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:02:58,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:02:58,117 INFO L142 QuantifierPusher]: treesize reduction 1250, result has 4.4 percent of original size [2021-03-25 09:02:58,117 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:02:58,117 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,118 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:58,118 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:02:58,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:02:58,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:02:58,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:02:58,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 96.6 percent of original size [2021-03-25 09:02:58,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 237 [2021-03-25 09:02:58,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 462 [2021-03-25 09:02:58,158 INFO L142 QuantifierPusher]: treesize reduction 21495, result has 0.6 percent of original size [2021-03-25 09:02:58,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:02:58,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-25 09:02:58,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.6 percent of original size [2021-03-25 09:02:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 09:02:58,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:02:58,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-25 09:02:58,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-25 09:02:58,254 INFO L142 QuantifierPusher]: treesize reduction 55, result has 46.6 percent of original size [2021-03-25 09:02:58,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:02:58,270 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:02:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:02:58,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:02:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:02:58,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:02:58,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-25 09:02:58,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705284418] [2021-03-25 09:02:58,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:02:58,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:02:58,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:02:58,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:02:58,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-25 09:02:58,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 398 transitions, 10216 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:58,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:02:58,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-25 09:02:58,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:02:58,846 INFO L129 PetriNetUnfolder]: 360/890 cut-off events. [2021-03-25 09:02:58,846 INFO L130 PetriNetUnfolder]: For 165210/165218 co-relation queries the response was YES. [2021-03-25 09:02:58,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18201 conditions, 890 events. 360/890 cut-off events. For 165210/165218 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 6171 event pairs, 16 based on Foata normal form. 2/889 useless extension candidates. Maximal degree in co-relation 17962. Up to 703 conditions per place. [2021-03-25 09:02:58,861 INFO L132 encePairwiseOnDemand]: 124/141 looper letters, 356 selfloop transitions, 47 changer transitions 0/408 dead transitions. [2021-03-25 09:02:58,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 408 transitions, 11638 flow [2021-03-25 09:02:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 09:02:58,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 09:02:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 196 transitions. [2021-03-25 09:02:58,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15445232466509062 [2021-03-25 09:02:58,862 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 196 transitions. [2021-03-25 09:02:58,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 196 transitions. [2021-03-25 09:02:58,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:02:58,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 196 transitions. [2021-03-25 09:02:58,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 21.77777777777778) internal successors, (196), 9 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:58,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:58,863 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 141.0) internal successors, (1410), 10 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:58,863 INFO L185 Difference]: Start difference. First operand has 452 places, 398 transitions, 10216 flow. Second operand 9 states and 196 transitions. [2021-03-25 09:02:58,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 408 transitions, 11638 flow [2021-03-25 09:02:59,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 408 transitions, 11377 flow, removed 20 selfloop flow, removed 10 redundant places. [2021-03-25 09:02:59,723 INFO L241 Difference]: Finished difference. Result has 451 places, 400 transitions, 10213 flow [2021-03-25 09:02:59,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9955, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10213, PETRI_PLACES=451, PETRI_TRANSITIONS=400} [2021-03-25 09:02:59,723 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 435 predicate places. [2021-03-25 09:02:59,723 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:02:59,724 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 451 places, 400 transitions, 10213 flow [2021-03-25 09:02:59,724 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 451 places, 400 transitions, 10213 flow [2021-03-25 09:02:59,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 451 places, 400 transitions, 10213 flow [2021-03-25 09:02:59,896 INFO L129 PetriNetUnfolder]: 357/886 cut-off events. [2021-03-25 09:02:59,896 INFO L130 PetriNetUnfolder]: For 164077/164109 co-relation queries the response was YES. [2021-03-25 09:02:59,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17270 conditions, 886 events. 357/886 cut-off events. For 164077/164109 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6217 event pairs, 11 based on Foata normal form. 5/888 useless extension candidates. Maximal degree in co-relation 16948. Up to 519 conditions per place. [2021-03-25 09:02:59,914 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 09:02:59,932 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:02:59,933 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:02:59,933 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 210 [2021-03-25 09:02:59,933 INFO L480 AbstractCegarLoop]: Abstraction has has 451 places, 400 transitions, 10213 flow [2021-03-25 09:02:59,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:02:59,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:02:59,933 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:00,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:00,133 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:00,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1800313614, now seen corresponding path program 1 times [2021-03-25 09:03:00,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:00,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107001733] [2021-03-25 09:03:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:00,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:00,149 INFO L142 QuantifierPusher]: treesize reduction 61, result has 31.5 percent of original size [2021-03-25 09:03:00,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:03:00,172 INFO L142 QuantifierPusher]: treesize reduction 183, result has 27.1 percent of original size [2021-03-25 09:03:00,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:03:00,208 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-25 09:03:00,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:00,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:00,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:00,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107001733] [2021-03-25 09:03:00,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103091947] [2021-03-25 09:03:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:00,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:03:00,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:00,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,279 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:00,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:00,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:00,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:00,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,281 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:00,282 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:00,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:00,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:03:00,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:00,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,284 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:00,285 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,285 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:00,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:00,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:00,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:00,304 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.7 percent of original size [2021-03-25 09:03:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:00,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:00,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:03:00,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,307 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:00,307 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,307 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:00,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:00,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:00,332 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-25 09:03:00,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:03:00,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-25 09:03:00,333 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-25 09:03:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:03:00,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:03:00,353 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-25 09:03:00,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:03:00,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:00,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-25 09:03:00,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-25 09:03:00,356 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-25 09:03:00,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:00,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:00,358 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:00,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:00,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:00,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:00,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-25 09:03:00,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332917952] [2021-03-25 09:03:00,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:03:00,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:00,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:03:00,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:03:00,364 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-25 09:03:00,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 400 transitions, 10213 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:00,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:00,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-25 09:03:00,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:00,908 INFO L129 PetriNetUnfolder]: 361/888 cut-off events. [2021-03-25 09:03:00,908 INFO L130 PetriNetUnfolder]: For 169516/169524 co-relation queries the response was YES. [2021-03-25 09:03:00,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18269 conditions, 888 events. 361/888 cut-off events. For 169516/169524 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 6125 event pairs, 17 based on Foata normal form. 7/892 useless extension candidates. Maximal degree in co-relation 18039. Up to 717 conditions per place. [2021-03-25 09:03:00,923 INFO L132 encePairwiseOnDemand]: 131/141 looper letters, 380 selfloop transitions, 19 changer transitions 0/404 dead transitions. [2021-03-25 09:03:00,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 404 transitions, 11395 flow [2021-03-25 09:03:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:03:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:03:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2021-03-25 09:03:00,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15780141843971632 [2021-03-25 09:03:00,924 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 178 transitions. [2021-03-25 09:03:00,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 178 transitions. [2021-03-25 09:03:00,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:00,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 178 transitions. [2021-03-25 09:03:00,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.25) internal successors, (178), 8 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:00,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 141.0) internal successors, (1269), 9 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:00,925 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 141.0) internal successors, (1269), 9 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:00,925 INFO L185 Difference]: Start difference. First operand has 451 places, 400 transitions, 10213 flow. Second operand 8 states and 178 transitions. [2021-03-25 09:03:00,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 404 transitions, 11395 flow [2021-03-25 09:03:01,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 404 transitions, 11194 flow, removed 54 selfloop flow, removed 7 redundant places. [2021-03-25 09:03:01,770 INFO L241 Difference]: Finished difference. Result has 452 places, 400 transitions, 10066 flow [2021-03-25 09:03:01,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9989, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10066, PETRI_PLACES=452, PETRI_TRANSITIONS=400} [2021-03-25 09:03:01,770 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 436 predicate places. [2021-03-25 09:03:01,770 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:01,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 400 transitions, 10066 flow [2021-03-25 09:03:01,770 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 400 transitions, 10066 flow [2021-03-25 09:03:01,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 452 places, 400 transitions, 10066 flow [2021-03-25 09:03:01,943 INFO L129 PetriNetUnfolder]: 358/882 cut-off events. [2021-03-25 09:03:01,943 INFO L130 PetriNetUnfolder]: For 164290/164305 co-relation queries the response was YES. [2021-03-25 09:03:01,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17306 conditions, 882 events. 358/882 cut-off events. For 164290/164305 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6175 event pairs, 10 based on Foata normal form. 3/882 useless extension candidates. Maximal degree in co-relation 17080. Up to 523 conditions per place. [2021-03-25 09:03:01,960 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 09:03:01,979 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:01,979 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:01,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-03-25 09:03:01,979 INFO L480 AbstractCegarLoop]: Abstraction has has 452 places, 400 transitions, 10066 flow [2021-03-25 09:03:01,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:01,979 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:01,979 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:02,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:02,180 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:02,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:02,180 INFO L82 PathProgramCache]: Analyzing trace with hash -458315674, now seen corresponding path program 1 times [2021-03-25 09:03:02,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:02,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913795353] [2021-03-25 09:03:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:02,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:03:02,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:03:02,217 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-25 09:03:02,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:02,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:02,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:02,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913795353] [2021-03-25 09:03:02,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539504558] [2021-03-25 09:03:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:02,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:03:02,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:02,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:02,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:02,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,291 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:02,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:02,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,293 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:02,293 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:02,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:02,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-25 09:03:02,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:03:02,305 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-25 09:03:02,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:03:02,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:03:02,333 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-25 09:03:02,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 09:03:02,356 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.2 percent of original size [2021-03-25 09:03:02,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:02,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:02,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:02,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:03:02,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,359 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:02,359 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:02,360 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:02,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:02,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:02,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:02,390 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-25 09:03:02,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:03:02,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:02,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:03:02,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:03:02,394 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-25 09:03:02,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:02,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:02,396 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:02,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:02,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:02,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:02,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-25 09:03:02,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384980220] [2021-03-25 09:03:02,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-25 09:03:02,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:02,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-25 09:03:02,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-03-25 09:03:02,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 141 [2021-03-25 09:03:02,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 400 transitions, 10066 flow. Second operand has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:02,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:02,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 141 [2021-03-25 09:03:02,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:03,036 INFO L129 PetriNetUnfolder]: 363/892 cut-off events. [2021-03-25 09:03:03,036 INFO L130 PetriNetUnfolder]: For 169431/169439 co-relation queries the response was YES. [2021-03-25 09:03:03,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18329 conditions, 892 events. 363/892 cut-off events. For 169431/169439 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 6165 event pairs, 17 based on Foata normal form. 6/895 useless extension candidates. Maximal degree in co-relation 18098. Up to 728 conditions per place. [2021-03-25 09:03:03,050 INFO L132 encePairwiseOnDemand]: 133/141 looper letters, 386 selfloop transitions, 14 changer transitions 0/405 dead transitions. [2021-03-25 09:03:03,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 405 transitions, 11268 flow [2021-03-25 09:03:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:03:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:03:03,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2021-03-25 09:03:03,051 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1691995947315096 [2021-03-25 09:03:03,051 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 167 transitions. [2021-03-25 09:03:03,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 167 transitions. [2021-03-25 09:03:03,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:03,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 167 transitions. [2021-03-25 09:03:03,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:03,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 141.0) internal successors, (1128), 8 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:03,052 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 141.0) internal successors, (1128), 8 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:03,052 INFO L185 Difference]: Start difference. First operand has 452 places, 400 transitions, 10066 flow. Second operand 7 states and 167 transitions. [2021-03-25 09:03:03,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 405 transitions, 11268 flow [2021-03-25 09:03:03,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 405 transitions, 11237 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 09:03:03,986 INFO L241 Difference]: Finished difference. Result has 454 places, 401 transitions, 10089 flow [2021-03-25 09:03:03,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10089, PETRI_PLACES=454, PETRI_TRANSITIONS=401} [2021-03-25 09:03:03,986 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 438 predicate places. [2021-03-25 09:03:03,986 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:03,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 454 places, 401 transitions, 10089 flow [2021-03-25 09:03:03,986 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 454 places, 401 transitions, 10089 flow [2021-03-25 09:03:03,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 454 places, 401 transitions, 10089 flow [2021-03-25 09:03:04,167 INFO L129 PetriNetUnfolder]: 360/886 cut-off events. [2021-03-25 09:03:04,167 INFO L130 PetriNetUnfolder]: For 167521/167547 co-relation queries the response was YES. [2021-03-25 09:03:04,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17461 conditions, 886 events. 360/886 cut-off events. For 167521/167547 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6187 event pairs, 11 based on Foata normal form. 3/886 useless extension candidates. Maximal degree in co-relation 17234. Up to 528 conditions per place. [2021-03-25 09:03:04,185 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 09:03:04,204 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:04,204 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:04,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 218 [2021-03-25 09:03:04,204 INFO L480 AbstractCegarLoop]: Abstraction has has 454 places, 401 transitions, 10089 flow [2021-03-25 09:03:04,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 13.181818181818182) internal successors, (145), 11 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:04,204 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:04,204 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:04,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable624 [2021-03-25 09:03:04,405 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:04,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:04,405 INFO L82 PathProgramCache]: Analyzing trace with hash -85047830, now seen corresponding path program 1 times [2021-03-25 09:03:04,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:04,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721693868] [2021-03-25 09:03:04,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:04,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:04,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,445 INFO L142 QuantifierPusher]: treesize reduction 201, result has 18.0 percent of original size [2021-03-25 09:03:04,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:03:04,483 INFO L142 QuantifierPusher]: treesize reduction 201, result has 26.1 percent of original size [2021-03-25 09:03:04,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 09:03:04,525 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:03:04,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,550 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:03:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:03:04,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:03:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:04,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721693868] [2021-03-25 09:03:04,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496760974] [2021-03-25 09:03:04,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:04,633 WARN L261 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-25 09:03:04,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:04,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:04,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,639 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:04,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:04,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:04,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:04,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,642 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:04,642 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:04,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:04,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:03:04,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 09:03:04,645 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-25 09:03:04,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:03:04,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-25 09:03:04,697 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.9 percent of original size [2021-03-25 09:03:04,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:03:04,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-25 09:03:04,699 INFO L142 QuantifierPusher]: treesize reduction 160, result has 49.5 percent of original size [2021-03-25 09:03:04,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:03:04,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-03-25 09:03:04,769 INFO L142 QuantifierPusher]: treesize reduction 25, result has 87.9 percent of original size [2021-03-25 09:03:04,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:04,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-25 09:03:04,771 INFO L147 QuantifierPusher]: treesize reduction 114, result has 37.4 percent of original size 68 [2021-03-25 09:03:04,772 INFO L142 QuantifierPusher]: treesize reduction 114, result has 37.7 percent of original size [2021-03-25 09:03:04,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:03:04,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-25 09:03:04,774 INFO L142 QuantifierPusher]: treesize reduction 107, result has 48.3 percent of original size [2021-03-25 09:03:04,775 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size 87 [2021-03-25 09:03:04,775 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size [2021-03-25 09:03:04,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-25 09:03:04,819 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.3 percent of original size [2021-03-25 09:03:04,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:04,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-25 09:03:04,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,822 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-25 09:03:04,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-25 09:03:04,824 INFO L142 QuantifierPusher]: treesize reduction 46, result has 81.8 percent of original size [2021-03-25 09:03:04,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,826 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:03:04,826 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:04,827 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,828 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.0 percent of original size [2021-03-25 09:03:04,830 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:04,830 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,832 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-25 09:03:04,833 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:04,834 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,835 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-25 09:03:04,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 09:03:04,838 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-25 09:03:04,839 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-25 09:03:04,839 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-25 09:03:04,840 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-25 09:03:04,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:04,874 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:03:04,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:03:04,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:03:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-25 09:03:04,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:03:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 09:03:04,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,879 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-25 09:03:04,880 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:03:04,880 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,881 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-25 09:03:04,882 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:03:04,882 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,883 INFO L142 QuantifierPusher]: treesize reduction 49, result has 41.7 percent of original size [2021-03-25 09:03:04,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:04,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:03:04,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:04,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:04,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:03:04,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:04,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,916 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:03:04,916 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:04,917 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,917 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:03:04,918 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:03:04,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:04,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:04,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-25 09:03:04,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553537464] [2021-03-25 09:03:04,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-25 09:03:04,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:04,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-25 09:03:04,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-03-25 09:03:04,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 141 [2021-03-25 09:03:04,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 401 transitions, 10089 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:04,942 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:04,942 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 141 [2021-03-25 09:03:04,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:05,086 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2021-03-25 09:03:05,373 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2021-03-25 09:03:06,795 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-03-25 09:03:06,889 INFO L129 PetriNetUnfolder]: 366/913 cut-off events. [2021-03-25 09:03:06,889 INFO L130 PetriNetUnfolder]: For 173679/173687 co-relation queries the response was YES. [2021-03-25 09:03:06,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18840 conditions, 913 events. 366/913 cut-off events. For 173679/173687 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 6386 event pairs, 19 based on Foata normal form. 10/920 useless extension candidates. Maximal degree in co-relation 18608. Up to 760 conditions per place. [2021-03-25 09:03:06,906 INFO L132 encePairwiseOnDemand]: 130/141 looper letters, 373 selfloop transitions, 33 changer transitions 6/416 dead transitions. [2021-03-25 09:03:06,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 416 transitions, 11808 flow [2021-03-25 09:03:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-25 09:03:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-25 09:03:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 276 transitions. [2021-03-25 09:03:06,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11514392991239049 [2021-03-25 09:03:06,907 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 276 transitions. [2021-03-25 09:03:06,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 276 transitions. [2021-03-25 09:03:06,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:06,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 276 transitions. [2021-03-25 09:03:06,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.235294117647058) internal successors, (276), 17 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:06,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 141.0) internal successors, (2538), 18 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:06,909 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 141.0) internal successors, (2538), 18 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:06,909 INFO L185 Difference]: Start difference. First operand has 454 places, 401 transitions, 10089 flow. Second operand 17 states and 276 transitions. [2021-03-25 09:03:06,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 416 transitions, 11808 flow [2021-03-25 09:03:07,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 416 transitions, 11756 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 09:03:07,848 INFO L241 Difference]: Finished difference. Result has 465 places, 408 transitions, 10846 flow [2021-03-25 09:03:07,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=9977, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10846, PETRI_PLACES=465, PETRI_TRANSITIONS=408} [2021-03-25 09:03:07,848 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 449 predicate places. [2021-03-25 09:03:07,848 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:07,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 408 transitions, 10846 flow [2021-03-25 09:03:07,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 408 transitions, 10846 flow [2021-03-25 09:03:07,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 461 places, 408 transitions, 10846 flow [2021-03-25 09:03:08,042 INFO L129 PetriNetUnfolder]: 362/896 cut-off events. [2021-03-25 09:03:08,042 INFO L130 PetriNetUnfolder]: For 172412/172438 co-relation queries the response was YES. [2021-03-25 09:03:08,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17991 conditions, 896 events. 362/896 cut-off events. For 172412/172438 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6263 event pairs, 12 based on Foata normal form. 3/896 useless extension candidates. Maximal degree in co-relation 17762. Up to 539 conditions per place. [2021-03-25 09:03:08,061 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 09:03:08,914 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:08,914 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 09:03:08,914 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1066 [2021-03-25 09:03:08,914 INFO L480 AbstractCegarLoop]: Abstraction has has 459 places, 406 transitions, 10794 flow [2021-03-25 09:03:08,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:08,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:08,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:09,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable626 [2021-03-25 09:03:09,115 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:09,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:09,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1682225060, now seen corresponding path program 1 times [2021-03-25 09:03:09,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:09,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175432278] [2021-03-25 09:03:09,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:09,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:09,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:03:09,160 INFO L142 QuantifierPusher]: treesize reduction 30, result has 59.5 percent of original size [2021-03-25 09:03:09,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:03:09,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:03:09,250 INFO L142 QuantifierPusher]: treesize reduction 1944, result has 2.9 percent of original size [2021-03-25 09:03:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 09:03:09,280 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:03:09,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:03:09,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:03:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:09,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175432278] [2021-03-25 09:03:09,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806963558] [2021-03-25 09:03:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:09,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:03:09,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:09,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:09,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:09,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:09,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:09,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:09,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:09,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,366 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:09,366 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:09,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:09,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-25 09:03:09,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:03:09,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 09:03:09,373 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-25 09:03:09,373 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:09,374 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,374 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:03:09,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:09,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:09,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:09,402 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-25 09:03:09,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:03:09,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:09,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:09,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,405 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:09,405 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,406 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:09,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:09,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:09,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:09,438 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.2 percent of original size [2021-03-25 09:03:09,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:09,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 09:03:09,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,440 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:03:09,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-25 09:03:09,442 INFO L142 QuantifierPusher]: treesize reduction 23, result has 82.4 percent of original size [2021-03-25 09:03:09,443 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size 95 [2021-03-25 09:03:09,443 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.2 percent of original size [2021-03-25 09:03:09,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:03:09,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 09:03:09,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:03:09,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:03:09,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-25 09:03:09,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,501 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-25 09:03:09,501 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:09,501 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,502 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:09,502 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:09,502 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:03:09,503 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:09,504 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,505 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-25 09:03:09,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 09:03:09,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:03:09,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 09:03:09,591 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.2 percent of original size [2021-03-25 09:03:09,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:09,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-25 09:03:09,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,594 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-25 09:03:09,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-03-25 09:03:09,596 INFO L142 QuantifierPusher]: treesize reduction 214, result has 48.2 percent of original size [2021-03-25 09:03:09,597 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,598 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:03:09,598 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:09,599 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,599 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,600 INFO L142 QuantifierPusher]: treesize reduction 208, result has 40.1 percent of original size [2021-03-25 09:03:09,600 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:09,600 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,600 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,601 INFO L142 QuantifierPusher]: treesize reduction 61, result has 68.4 percent of original size [2021-03-25 09:03:09,601 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:09,602 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,602 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,602 INFO L142 QuantifierPusher]: treesize reduction 89, result has 44.4 percent of original size [2021-03-25 09:03:09,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 09:03:09,606 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-25 09:03:09,614 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:03:09,614 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-25 09:03:09,615 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-25 09:03:09,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 09:03:09,646 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 09:03:09,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:03:09,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:03:09,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,648 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 09:03:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:03:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 09:03:09,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,651 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-25 09:03:09,651 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:03:09,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,653 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-25 09:03:09,653 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:03:09,653 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:09,654 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-25 09:03:09,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:09,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:09,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:09,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:09,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-25 09:03:09,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802436535] [2021-03-25 09:03:09,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-25 09:03:09,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:09,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-25 09:03:09,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-25 09:03:09,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 146 [2021-03-25 09:03:09,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 406 transitions, 10794 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:09,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:09,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 146 [2021-03-25 09:03:09,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:10,552 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 41 [2021-03-25 09:03:11,354 INFO L129 PetriNetUnfolder]: 377/940 cut-off events. [2021-03-25 09:03:11,355 INFO L130 PetriNetUnfolder]: For 185806/185806 co-relation queries the response was YES. [2021-03-25 09:03:11,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19859 conditions, 940 events. 377/940 cut-off events. For 185806/185806 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6631 event pairs, 18 based on Foata normal form. 3/940 useless extension candidates. Maximal degree in co-relation 19625. Up to 783 conditions per place. [2021-03-25 09:03:11,370 INFO L132 encePairwiseOnDemand]: 134/146 looper letters, 388 selfloop transitions, 41 changer transitions 3/436 dead transitions. [2021-03-25 09:03:11,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 436 transitions, 13394 flow [2021-03-25 09:03:11,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-25 09:03:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-25 09:03:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 262 transitions. [2021-03-25 09:03:11,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.11963470319634703 [2021-03-25 09:03:11,371 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 262 transitions. [2021-03-25 09:03:11,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 262 transitions. [2021-03-25 09:03:11,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:11,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 262 transitions. [2021-03-25 09:03:11,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 17.466666666666665) internal successors, (262), 15 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:11,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 146.0) internal successors, (2336), 16 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:11,373 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 146.0) internal successors, (2336), 16 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:11,373 INFO L185 Difference]: Start difference. First operand has 459 places, 406 transitions, 10794 flow. Second operand 15 states and 262 transitions. [2021-03-25 09:03:11,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 436 transitions, 13394 flow [2021-03-25 09:03:12,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 436 transitions, 12754 flow, removed 310 selfloop flow, removed 7 redundant places. [2021-03-25 09:03:12,290 INFO L241 Difference]: Finished difference. Result has 471 places, 431 transitions, 11858 flow [2021-03-25 09:03:12,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=10164, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11858, PETRI_PLACES=471, PETRI_TRANSITIONS=431} [2021-03-25 09:03:12,290 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 455 predicate places. [2021-03-25 09:03:12,290 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:12,291 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 471 places, 431 transitions, 11858 flow [2021-03-25 09:03:12,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 471 places, 431 transitions, 11858 flow [2021-03-25 09:03:12,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 431 transitions, 11858 flow [2021-03-25 09:03:12,507 INFO L129 PetriNetUnfolder]: 374/931 cut-off events. [2021-03-25 09:03:12,507 INFO L130 PetriNetUnfolder]: For 182761/182787 co-relation queries the response was YES. [2021-03-25 09:03:12,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18758 conditions, 931 events. 374/931 cut-off events. For 182761/182787 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6601 event pairs, 12 based on Foata normal form. 3/931 useless extension candidates. Maximal degree in co-relation 18526. Up to 552 conditions per place. [2021-03-25 09:03:12,524 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 09:03:13,284 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:13,284 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:03:13,284 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 994 [2021-03-25 09:03:13,284 INFO L480 AbstractCegarLoop]: Abstraction has has 469 places, 431 transitions, 11885 flow [2021-03-25 09:03:13,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:13,285 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:13,285 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:13,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:13,485 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:13,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1304702638, now seen corresponding path program 2 times [2021-03-25 09:03:13,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:13,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31385365] [2021-03-25 09:03:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:13,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:13,509 INFO L142 QuantifierPusher]: treesize reduction 70, result has 35.2 percent of original size [2021-03-25 09:03:13,509 INFO L147 QuantifierPusher]: treesize reduction 15, result has 60.5 percent of original size 23 [2021-03-25 09:03:13,530 INFO L142 QuantifierPusher]: treesize reduction 70, result has 34.0 percent of original size [2021-03-25 09:03:13,530 INFO L147 QuantifierPusher]: treesize reduction 15, result has 58.3 percent of original size 21 [2021-03-25 09:03:13,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:13,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:13,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31385365] [2021-03-25 09:03:13,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892429759] [2021-03-25 09:03:13,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:13,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:03:13,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:03:13,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:03:13,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:13,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:13,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:13,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:13,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:13,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,605 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:13,606 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:13,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:13,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-25 09:03:13,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-25 09:03:13,624 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-25 09:03:13,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:03:13,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-25 09:03:13,652 INFO L142 QuantifierPusher]: treesize reduction 7, result has 91.9 percent of original size [2021-03-25 09:03:13,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:03:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-25 09:03:13,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,655 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:13,655 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:13,656 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:13,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:13,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:03:13,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 09:03:13,691 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-25 09:03:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:13,721 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-25 09:03:13,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:03:13,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:13,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:03:13,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:03:13,724 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-25 09:03:13,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:13,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:13,726 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:13,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:13,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:13,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-25 09:03:13,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340645933] [2021-03-25 09:03:13,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:03:13,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:13,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:03:13,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:03:13,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 150 [2021-03-25 09:03:13,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 431 transitions, 11885 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:13,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:13,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 150 [2021-03-25 09:03:13,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:14,624 INFO L129 PetriNetUnfolder]: 381/943 cut-off events. [2021-03-25 09:03:14,624 INFO L130 PetriNetUnfolder]: For 189504/189504 co-relation queries the response was YES. [2021-03-25 09:03:14,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19916 conditions, 943 events. 381/943 cut-off events. For 189504/189504 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 6624 event pairs, 16 based on Foata normal form. 2/942 useless extension candidates. Maximal degree in co-relation 19679. Up to 759 conditions per place. [2021-03-25 09:03:14,641 INFO L132 encePairwiseOnDemand]: 140/150 looper letters, 414 selfloop transitions, 22 changer transitions 0/441 dead transitions. [2021-03-25 09:03:14,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 441 transitions, 13585 flow [2021-03-25 09:03:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:03:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:03:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 232 transitions. [2021-03-25 09:03:14,642 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1406060606060606 [2021-03-25 09:03:14,642 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 232 transitions. [2021-03-25 09:03:14,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 232 transitions. [2021-03-25 09:03:14,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:14,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 232 transitions. [2021-03-25 09:03:14,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 21.09090909090909) internal successors, (232), 11 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:14,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:14,643 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:14,643 INFO L185 Difference]: Start difference. First operand has 469 places, 431 transitions, 11885 flow. Second operand 11 states and 232 transitions. [2021-03-25 09:03:14,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 441 transitions, 13585 flow [2021-03-25 09:03:15,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 441 transitions, 12143 flow, removed 714 selfloop flow, removed 4 redundant places. [2021-03-25 09:03:15,702 INFO L241 Difference]: Finished difference. Result has 476 places, 433 transitions, 10609 flow [2021-03-25 09:03:15,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10525, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10609, PETRI_PLACES=476, PETRI_TRANSITIONS=433} [2021-03-25 09:03:15,702 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 460 predicate places. [2021-03-25 09:03:15,702 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:15,702 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 433 transitions, 10609 flow [2021-03-25 09:03:15,702 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 433 transitions, 10609 flow [2021-03-25 09:03:15,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 476 places, 433 transitions, 10609 flow [2021-03-25 09:03:15,908 INFO L129 PetriNetUnfolder]: 378/938 cut-off events. [2021-03-25 09:03:15,908 INFO L130 PetriNetUnfolder]: For 180175/180203 co-relation queries the response was YES. [2021-03-25 09:03:15,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18250 conditions, 938 events. 378/938 cut-off events. For 180175/180203 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6670 event pairs, 12 based on Foata normal form. 3/937 useless extension candidates. Maximal degree in co-relation 18017. Up to 547 conditions per place. [2021-03-25 09:03:15,928 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 09:03:15,948 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:15,949 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:15,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-25 09:03:15,949 INFO L480 AbstractCegarLoop]: Abstraction has has 476 places, 433 transitions, 10609 flow [2021-03-25 09:03:15,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:15,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:15,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:16,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable644 [2021-03-25 09:03:16,158 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:16,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:16,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2130677881, now seen corresponding path program 1 times [2021-03-25 09:03:16,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:16,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146381774] [2021-03-25 09:03:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:16,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:16,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 09:03:16,192 INFO L142 QuantifierPusher]: treesize reduction 125, result has 30.2 percent of original size [2021-03-25 09:03:16,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 09:03:16,227 INFO L142 QuantifierPusher]: treesize reduction 201, result has 19.3 percent of original size [2021-03-25 09:03:16,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:03:16,254 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:03:16,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:03:16,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:03:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:16,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146381774] [2021-03-25 09:03:16,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912136692] [2021-03-25 09:03:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:16,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-25 09:03:16,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:16,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:16,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:16,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:16,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:16,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:16,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,326 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:16,326 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:16,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-25 09:03:16,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,328 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:03:16,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 09:03:16,330 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-25 09:03:16,330 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:16,330 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,331 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:03:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:16,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:16,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:16,356 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-25 09:03:16,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:03:16,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:16,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:16,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,359 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:16,360 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,360 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:16,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:16,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:16,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:16,392 INFO L142 QuantifierPusher]: treesize reduction 13, result has 86.9 percent of original size [2021-03-25 09:03:16,392 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:16,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-25 09:03:16,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 09:03:16,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-25 09:03:16,396 INFO L142 QuantifierPusher]: treesize reduction 46, result has 76.6 percent of original size [2021-03-25 09:03:16,397 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-25 09:03:16,398 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-25 09:03:16,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-25 09:03:16,512 INFO L142 QuantifierPusher]: treesize reduction 10, result has 94.3 percent of original size [2021-03-25 09:03:16,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:16,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-03-25 09:03:16,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-03-25 09:03:16,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-03-25 09:03:16,517 INFO L142 QuantifierPusher]: treesize reduction 178, result has 48.6 percent of original size [2021-03-25 09:03:16,518 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,519 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:03:16,519 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:16,520 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,521 INFO L142 QuantifierPusher]: treesize reduction 151, result has 44.5 percent of original size [2021-03-25 09:03:16,521 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:16,522 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,523 INFO L142 QuantifierPusher]: treesize reduction 115, result has 46.5 percent of original size [2021-03-25 09:03:16,523 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:03:16,524 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,524 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,524 INFO L142 QuantifierPusher]: treesize reduction 80, result has 49.7 percent of original size [2021-03-25 09:03:16,526 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-25 09:03:16,527 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,527 INFO L142 QuantifierPusher]: treesize reduction 52, result has 37.3 percent of original size [2021-03-25 09:03:16,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:16,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:16,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:16,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:16,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:16,554 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-03-25 09:03:16,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-25 09:03:16,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:16,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:16,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:03:16,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 09:03:16,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:16,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:16,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-25 09:03:16,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947891732] [2021-03-25 09:03:16,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-25 09:03:16,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:16,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-25 09:03:16,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-25 09:03:16,580 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 150 [2021-03-25 09:03:16,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 433 transitions, 10609 flow. Second operand has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:16,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:16,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 150 [2021-03-25 09:03:16,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:17,754 INFO L129 PetriNetUnfolder]: 382/965 cut-off events. [2021-03-25 09:03:17,755 INFO L130 PetriNetUnfolder]: For 187478/187488 co-relation queries the response was YES. [2021-03-25 09:03:17,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19589 conditions, 965 events. 382/965 cut-off events. For 187478/187488 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 6909 event pairs, 18 based on Foata normal form. 10/971 useless extension candidates. Maximal degree in co-relation 19351. Up to 798 conditions per place. [2021-03-25 09:03:17,771 INFO L132 encePairwiseOnDemand]: 135/150 looper letters, 405 selfloop transitions, 31 changer transitions 5/445 dead transitions. [2021-03-25 09:03:17,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 445 transitions, 12088 flow [2021-03-25 09:03:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 09:03:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 09:03:17,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 210 transitions. [2021-03-25 09:03:17,773 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.12727272727272726 [2021-03-25 09:03:17,773 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 210 transitions. [2021-03-25 09:03:17,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 210 transitions. [2021-03-25 09:03:17,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:17,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 210 transitions. [2021-03-25 09:03:17,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:17,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:17,774 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 150.0) internal successors, (1800), 12 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:17,774 INFO L185 Difference]: Start difference. First operand has 476 places, 433 transitions, 10609 flow. Second operand 11 states and 210 transitions. [2021-03-25 09:03:17,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 445 transitions, 12088 flow [2021-03-25 09:03:18,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 445 transitions, 12012 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-25 09:03:18,786 INFO L241 Difference]: Finished difference. Result has 480 places, 435 transitions, 10945 flow [2021-03-25 09:03:18,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10533, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10945, PETRI_PLACES=480, PETRI_TRANSITIONS=435} [2021-03-25 09:03:18,787 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 464 predicate places. [2021-03-25 09:03:18,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:18,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 480 places, 435 transitions, 10945 flow [2021-03-25 09:03:18,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 480 places, 435 transitions, 10945 flow [2021-03-25 09:03:18,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 478 places, 435 transitions, 10945 flow [2021-03-25 09:03:18,996 INFO L129 PetriNetUnfolder]: 379/949 cut-off events. [2021-03-25 09:03:18,996 INFO L130 PetriNetUnfolder]: For 191864/191924 co-relation queries the response was YES. [2021-03-25 09:03:19,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18855 conditions, 949 events. 379/949 cut-off events. For 191864/191924 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6796 event pairs, 13 based on Foata normal form. 1/946 useless extension candidates. Maximal degree in co-relation 18618. Up to 556 conditions per place. [2021-03-25 09:03:19,017 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-25 09:03:19,046 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:19,046 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:19,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 259 [2021-03-25 09:03:19,047 INFO L480 AbstractCegarLoop]: Abstraction has has 478 places, 435 transitions, 10945 flow [2021-03-25 09:03:19,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 11.0) internal successors, (143), 13 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:19,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:19,047 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:19,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:19,250 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:19,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:19,251 INFO L82 PathProgramCache]: Analyzing trace with hash 174025440, now seen corresponding path program 1 times [2021-03-25 09:03:19,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:19,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341319136] [2021-03-25 09:03:19,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:19,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,267 INFO L142 QuantifierPusher]: treesize reduction 60, result has 32.6 percent of original size [2021-03-25 09:03:19,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:03:19,282 INFO L142 QuantifierPusher]: treesize reduction 163, result has 32.4 percent of original size [2021-03-25 09:03:19,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-25 09:03:19,333 INFO L142 QuantifierPusher]: treesize reduction 85, result has 19.8 percent of original size [2021-03-25 09:03:19,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:19,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:19,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341319136] [2021-03-25 09:03:19,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731936312] [2021-03-25 09:03:19,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:19,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-25 09:03:19,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,432 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:19,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,434 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:19,434 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:19,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-25 09:03:19,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-25 09:03:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-25 09:03:19,441 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-25 09:03:19,441 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:19,442 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,442 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,442 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:03:19,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:19,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:19,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 09:03:19,474 INFO L142 QuantifierPusher]: treesize reduction 3, result has 95.1 percent of original size [2021-03-25 09:03:19,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 09:03:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:19,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:19,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,478 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:19,478 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,478 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,479 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:19,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 09:03:19,516 INFO L142 QuantifierPusher]: treesize reduction 9, result has 85.5 percent of original size [2021-03-25 09:03:19,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:03:19,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:03:19,518 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.3 percent of original size [2021-03-25 09:03:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:19,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 09:03:19,549 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-25 09:03:19,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 09:03:19,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,551 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:19,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-25 09:03:19,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-25 09:03:19,553 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-25 09:03:19,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:19,559 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:19,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:19,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:19,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:19,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-03-25 09:03:19,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481950654] [2021-03-25 09:03:19,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 09:03:19,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:19,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 09:03:19,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-25 09:03:19,565 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 150 [2021-03-25 09:03:19,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 435 transitions, 10945 flow. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:19,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:19,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 150 [2021-03-25 09:03:19,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:20,201 INFO L129 PetriNetUnfolder]: 383/945 cut-off events. [2021-03-25 09:03:20,201 INFO L130 PetriNetUnfolder]: For 197958/197968 co-relation queries the response was YES. [2021-03-25 09:03:20,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19851 conditions, 945 events. 383/945 cut-off events. For 197958/197968 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6628 event pairs, 16 based on Foata normal form. 8/949 useless extension candidates. Maximal degree in co-relation 19609. Up to 758 conditions per place. [2021-03-25 09:03:20,217 INFO L132 encePairwiseOnDemand]: 140/150 looper letters, 406 selfloop transitions, 23 changer transitions 1/435 dead transitions. [2021-03-25 09:03:20,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 435 transitions, 12196 flow [2021-03-25 09:03:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:03:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:03:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2021-03-25 09:03:20,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15666666666666668 [2021-03-25 09:03:20,218 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 188 transitions. [2021-03-25 09:03:20,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 188 transitions. [2021-03-25 09:03:20,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:20,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 188 transitions. [2021-03-25 09:03:20,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:20,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:20,219 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 150.0) internal successors, (1350), 9 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:20,219 INFO L185 Difference]: Start difference. First operand has 478 places, 435 transitions, 10945 flow. Second operand 8 states and 188 transitions. [2021-03-25 09:03:20,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 435 transitions, 12196 flow [2021-03-25 09:03:21,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 435 transitions, 11930 flow, removed 114 selfloop flow, removed 8 redundant places. [2021-03-25 09:03:21,191 INFO L241 Difference]: Finished difference. Result has 478 places, 430 transitions, 10710 flow [2021-03-25 09:03:21,191 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10587, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10710, PETRI_PLACES=478, PETRI_TRANSITIONS=430} [2021-03-25 09:03:21,192 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 462 predicate places. [2021-03-25 09:03:21,192 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:21,192 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 478 places, 430 transitions, 10710 flow [2021-03-25 09:03:21,192 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 478 places, 430 transitions, 10710 flow [2021-03-25 09:03:21,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 477 places, 430 transitions, 10710 flow [2021-03-25 09:03:21,389 INFO L129 PetriNetUnfolder]: 380/936 cut-off events. [2021-03-25 09:03:21,390 INFO L130 PetriNetUnfolder]: For 192871/192931 co-relation queries the response was YES. [2021-03-25 09:03:21,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18774 conditions, 936 events. 380/936 cut-off events. For 192871/192931 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 6601 event pairs, 14 based on Foata normal form. 1/933 useless extension candidates. Maximal degree in co-relation 18538. Up to 553 conditions per place. [2021-03-25 09:03:21,409 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-25 09:03:21,430 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:21,431 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:21,431 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 239 [2021-03-25 09:03:21,431 INFO L480 AbstractCegarLoop]: Abstraction has has 477 places, 430 transitions, 10710 flow [2021-03-25 09:03:21,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:21,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:21,431 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:21,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable653 [2021-03-25 09:03:21,632 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:21,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1939780821, now seen corresponding path program 1 times [2021-03-25 09:03:21,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:21,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775717381] [2021-03-25 09:03:21,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:21,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:21,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,653 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.5 percent of original size [2021-03-25 09:03:21,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 09:03:21,680 INFO L142 QuantifierPusher]: treesize reduction 45, result has 55.9 percent of original size [2021-03-25 09:03:21,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:03:21,701 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-03-25 09:03:21,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:03:21,723 INFO L142 QuantifierPusher]: treesize reduction 1174, result has 3.0 percent of original size [2021-03-25 09:03:21,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:03:21,759 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:03:21,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:03:21,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:03:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:21,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775717381] [2021-03-25 09:03:21,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496207319] [2021-03-25 09:03:21,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:21,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 31 conjunts are in the unsatisfiable core [2021-03-25 09:03:21,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:21,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:21,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:21,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:21,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:21,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,830 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:21,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:21,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,831 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:21,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:21,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,833 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:21,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:21,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:21,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,836 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:21,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:21,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-03-25 09:03:21,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:21,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:21,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:03:21,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 743 [2021-03-25 09:03:21,850 INFO L142 QuantifierPusher]: treesize reduction 11200, result has 9.2 percent of original size [2021-03-25 09:03:21,853 INFO L147 QuantifierPusher]: treesize reduction 24, result has 97.9 percent of original size 1094 [2021-03-25 09:03:21,856 INFO L142 QuantifierPusher]: treesize reduction 24, result has 97.9 percent of original size [2021-03-25 09:03:21,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1094 [2021-03-25 09:03:22,673 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 90 [2021-03-25 09:03:22,675 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.8 percent of original size [2021-03-25 09:03:22,675 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-03-25 09:03:22,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-03-25 09:03:22,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,679 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 445 [2021-03-25 09:03:22,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 453 [2021-03-25 09:03:22,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,685 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 3, 2, 2, 2, 1] term [2021-03-25 09:03:22,685 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,685 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,685 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:22,685 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,686 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,686 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 3, 2, 2, 2, 1] term [2021-03-25 09:03:22,686 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,687 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,687 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-25 09:03:22,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,687 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,687 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:22,687 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,688 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:22,688 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,688 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,689 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 2, 2, 1] term [2021-03-25 09:03:22,689 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-25 09:03:22,689 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,689 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:22,689 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,690 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,690 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-25 09:03:22,690 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,690 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,692 INFO L147 QuantifierPusher]: treesize reduction -8, result has 102.7 percent of original size 304 [2021-03-25 09:03:22,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,693 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,693 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,694 INFO L142 QuantifierPusher]: treesize reduction 73, result has 49.3 percent of original size [2021-03-25 09:03:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:03:22,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-25 09:03:22,696 INFO L147 QuantifierPusher]: treesize reduction -10, result has 103.6 percent of original size 290 [2021-03-25 09:03:22,697 INFO L142 QuantifierPusher]: treesize reduction -10, result has 103.6 percent of original size [2021-03-25 09:03:22,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-03-25 09:03:22,895 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-03-25 09:03:22,897 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.7 percent of original size [2021-03-25 09:03:22,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-03-25 09:03:22,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 293 [2021-03-25 09:03:22,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,901 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:22,902 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:22,902 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:22,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:22,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-25 09:03:22,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:22,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-03-25 09:03:23,022 INFO L142 QuantifierPusher]: treesize reduction 13, result has 96.1 percent of original size [2021-03-25 09:03:23,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-03-25 09:03:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-03-25 09:03:23,026 INFO L142 QuantifierPusher]: treesize reduction 25, result has 93.3 percent of original size [2021-03-25 09:03:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-03-25 09:03:23,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 347 [2021-03-25 09:03:23,169 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-03-25 09:03:23,171 INFO L142 QuantifierPusher]: treesize reduction 184, result has 53.5 percent of original size [2021-03-25 09:03:23,171 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:23,172 INFO L147 QuantifierPusher]: treesize reduction 42, result has 79.8 percent of original size 166 [2021-03-25 09:03:23,173 INFO L142 QuantifierPusher]: treesize reduction 42, result has 79.9 percent of original size [2021-03-25 09:03:23,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 95.8 percent of original size [2021-03-25 09:03:23,175 INFO L147 QuantifierPusher]: treesize reduction 44, result has 78.7 percent of original size 163 [2021-03-25 09:03:23,175 INFO L147 QuantifierPusher]: treesize reduction 44, result has 78.8 percent of original size 164 [2021-03-25 09:03:23,176 INFO L142 QuantifierPusher]: treesize reduction 168, result has 44.2 percent of original size [2021-03-25 09:03:23,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,178 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:03:23,178 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:23,178 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,179 INFO L142 QuantifierPusher]: treesize reduction 84, result has 60.9 percent of original size [2021-03-25 09:03:23,181 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:23,181 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,182 INFO L142 QuantifierPusher]: treesize reduction 109, result has 30.1 percent of original size [2021-03-25 09:03:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 09:03:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:23,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:03:23,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:23,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:23,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-25 09:03:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:23,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,215 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:03:23,215 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:23,216 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,216 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-25 09:03:23,216 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-25 09:03:23,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:23,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:23,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:23,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-25 09:03:23,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352529135] [2021-03-25 09:03:23,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-25 09:03:23,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:23,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-25 09:03:23,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-03-25 09:03:23,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 150 [2021-03-25 09:03:23,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 430 transitions, 10710 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:23,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:23,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 150 [2021-03-25 09:03:23,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:23,623 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2021-03-25 09:03:24,190 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2021-03-25 09:03:24,776 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2021-03-25 09:03:25,253 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2021-03-25 09:03:25,719 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-03-25 09:03:25,883 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-03-25 09:03:26,278 INFO L129 PetriNetUnfolder]: 393/971 cut-off events. [2021-03-25 09:03:26,279 INFO L130 PetriNetUnfolder]: For 204423/204433 co-relation queries the response was YES. [2021-03-25 09:03:26,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20469 conditions, 971 events. 393/971 cut-off events. For 204423/204433 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6856 event pairs, 18 based on Foata normal form. 7/974 useless extension candidates. Maximal degree in co-relation 20228. Up to 819 conditions per place. [2021-03-25 09:03:26,295 INFO L132 encePairwiseOnDemand]: 137/150 looper letters, 409 selfloop transitions, 38 changer transitions 5/456 dead transitions. [2021-03-25 09:03:26,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 456 transitions, 13064 flow [2021-03-25 09:03:26,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-25 09:03:26,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-25 09:03:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 296 transitions. [2021-03-25 09:03:26,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10962962962962963 [2021-03-25 09:03:26,296 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 296 transitions. [2021-03-25 09:03:26,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 296 transitions. [2021-03-25 09:03:26,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:26,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 296 transitions. [2021-03-25 09:03:26,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 16.444444444444443) internal successors, (296), 18 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:26,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 150.0) internal successors, (2850), 19 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:26,298 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 150.0) internal successors, (2850), 19 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:26,298 INFO L185 Difference]: Start difference. First operand has 477 places, 430 transitions, 10710 flow. Second operand 18 states and 296 transitions. [2021-03-25 09:03:26,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 456 transitions, 13064 flow [2021-03-25 09:03:27,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 456 transitions, 12971 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-03-25 09:03:27,279 INFO L241 Difference]: Finished difference. Result has 493 places, 449 transitions, 12064 flow [2021-03-25 09:03:27,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=10624, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=12064, PETRI_PLACES=493, PETRI_TRANSITIONS=449} [2021-03-25 09:03:27,279 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 477 predicate places. [2021-03-25 09:03:27,279 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:27,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 493 places, 449 transitions, 12064 flow [2021-03-25 09:03:27,280 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 493 places, 449 transitions, 12064 flow [2021-03-25 09:03:27,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 488 places, 449 transitions, 12064 flow [2021-03-25 09:03:27,488 INFO L129 PetriNetUnfolder]: 390/959 cut-off events. [2021-03-25 09:03:27,489 INFO L130 PetriNetUnfolder]: For 208297/208357 co-relation queries the response was YES. [2021-03-25 09:03:27,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19655 conditions, 959 events. 390/959 cut-off events. For 208297/208357 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 6802 event pairs, 13 based on Foata normal form. 1/956 useless extension candidates. Maximal degree in co-relation 19414. Up to 569 conditions per place. [2021-03-25 09:03:27,508 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 09:03:27,807 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-25 09:03:28,494 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:28,494 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 09:03:28,494 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1215 [2021-03-25 09:03:28,495 INFO L480 AbstractCegarLoop]: Abstraction has has 488 places, 449 transitions, 12111 flow [2021-03-25 09:03:28,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:28,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:28,495 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:28,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable656 [2021-03-25 09:03:28,695 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:28,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:28,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1185494373, now seen corresponding path program 2 times [2021-03-25 09:03:28,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:28,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758369921] [2021-03-25 09:03:28,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:28,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:28,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,713 INFO L142 QuantifierPusher]: treesize reduction 129, result has 35.5 percent of original size [2021-03-25 09:03:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 09:03:28,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 09:03:28,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 09:03:28,805 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-25 09:03:28,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:28,827 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-25 09:03:28,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 09:03:28,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 09:03:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:28,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758369921] [2021-03-25 09:03:28,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586579153] [2021-03-25 09:03:28,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:28,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-25 09:03:28,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-25 09:03:28,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-25 09:03:28,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:28,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:28,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:28,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:28,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:28,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:28,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:28,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,901 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:28,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:28,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,902 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:28,903 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:28,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 09:03:28,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-03-25 09:03:28,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:28,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-25 09:03:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 860 [2021-03-25 09:03:28,917 INFO L142 QuantifierPusher]: treesize reduction 12204, result has 1.3 percent of original size [2021-03-25 09:03:28,918 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size 146 [2021-03-25 09:03:28,918 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size [2021-03-25 09:03:28,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-03-25 09:03:29,030 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.5 percent of original size [2021-03-25 09:03:29,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-25 09:03:29,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:29,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-25 09:03:29,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,034 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:29,046 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,046 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:29,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:29,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:03:29,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:03:29,122 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.9 percent of original size [2021-03-25 09:03:29,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-25 09:03:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:29,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 143 [2021-03-25 09:03:29,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,125 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:29,126 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,126 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-25 09:03:29,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:29,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:03:29,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-25 09:03:29,199 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.2 percent of original size [2021-03-25 09:03:29,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:29,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-03-25 09:03:29,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-03-25 09:03:29,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 241 [2021-03-25 09:03:29,205 INFO L142 QuantifierPusher]: treesize reduction 214, result has 53.2 percent of original size [2021-03-25 09:03:29,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,206 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-25 09:03:29,207 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:03:29,207 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,207 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,209 INFO L142 QuantifierPusher]: treesize reduction 191, result has 56.7 percent of original size [2021-03-25 09:03:29,209 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-25 09:03:29,210 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,211 INFO L142 QuantifierPusher]: treesize reduction 192, result has 48.1 percent of original size [2021-03-25 09:03:29,211 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-25 09:03:29,212 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,213 INFO L142 QuantifierPusher]: treesize reduction 172, result has 47.7 percent of original size [2021-03-25 09:03:29,213 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:29,213 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,214 INFO L142 QuantifierPusher]: treesize reduction 132, result has 51.6 percent of original size [2021-03-25 09:03:29,216 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:29,217 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,217 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,217 INFO L142 QuantifierPusher]: treesize reduction 125, result has 27.7 percent of original size [2021-03-25 09:03:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 09:03:29,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 09:03:29,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 09:03:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:03:29,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:03:29,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 09:03:29,261 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-03-25 09:03:29,262 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:03:29,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:03:29,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,264 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 09:03:29,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-25 09:03:29,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 09:03:29,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,267 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 1] term [2021-03-25 09:03:29,267 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:29,267 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,268 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-25 09:03:29,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:29,268 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,269 INFO L147 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size 46 [2021-03-25 09:03:29,269 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:29,269 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,270 INFO L142 QuantifierPusher]: treesize reduction 110, result has 23.6 percent of original size [2021-03-25 09:03:29,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:03:29,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:03:29,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-25 09:03:29,298 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-03-25 09:03:29,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-25 09:03:29,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 09:03:29,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:29,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:03:29,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 09:03:29,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:29,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 09:03:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:29,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:29,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-03-25 09:03:29,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314756981] [2021-03-25 09:03:29,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-25 09:03:29,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:29,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-25 09:03:29,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-03-25 09:03:29,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 154 [2021-03-25 09:03:29,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 449 transitions, 12111 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:29,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:29,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 154 [2021-03-25 09:03:29,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:29,860 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-25 09:03:30,000 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-03-25 09:03:30,568 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-25 09:03:30,815 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2021-03-25 09:03:31,195 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-03-25 09:03:31,781 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-25 09:03:32,270 INFO L129 PetriNetUnfolder]: 416/1035 cut-off events. [2021-03-25 09:03:32,270 INFO L130 PetriNetUnfolder]: For 227284/227296 co-relation queries the response was YES. [2021-03-25 09:03:32,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22730 conditions, 1035 events. 416/1035 cut-off events. For 227284/227296 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 7490 event pairs, 18 based on Foata normal form. 11/1042 useless extension candidates. Maximal degree in co-relation 22484. Up to 832 conditions per place. [2021-03-25 09:03:32,286 INFO L132 encePairwiseOnDemand]: 136/154 looper letters, 420 selfloop transitions, 64 changer transitions 9/497 dead transitions. [2021-03-25 09:03:32,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 497 transitions, 16460 flow [2021-03-25 09:03:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-25 09:03:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-03-25 09:03:32,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 392 transitions. [2021-03-25 09:03:32,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.10181818181818182 [2021-03-25 09:03:32,289 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 392 transitions. [2021-03-25 09:03:32,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 392 transitions. [2021-03-25 09:03:32,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:32,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 392 transitions. [2021-03-25 09:03:32,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 15.68) internal successors, (392), 25 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:32,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 154.0) internal successors, (4004), 26 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:32,291 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 154.0) internal successors, (4004), 26 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:32,291 INFO L185 Difference]: Start difference. First operand has 488 places, 449 transitions, 12111 flow. Second operand 25 states and 392 transitions. [2021-03-25 09:03:32,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 497 transitions, 16460 flow [2021-03-25 09:03:33,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 508 places, 497 transitions, 14833 flow, removed 806 selfloop flow, removed 4 redundant places. [2021-03-25 09:03:33,362 INFO L241 Difference]: Finished difference. Result has 513 places, 484 transitions, 13632 flow [2021-03-25 09:03:33,362 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=10892, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=13632, PETRI_PLACES=513, PETRI_TRANSITIONS=484} [2021-03-25 09:03:33,362 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 497 predicate places. [2021-03-25 09:03:33,362 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:33,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 513 places, 484 transitions, 13632 flow [2021-03-25 09:03:33,362 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 513 places, 484 transitions, 13632 flow [2021-03-25 09:03:33,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 511 places, 484 transitions, 13632 flow [2021-03-25 09:03:33,591 INFO L129 PetriNetUnfolder]: 409/1015 cut-off events. [2021-03-25 09:03:33,591 INFO L130 PetriNetUnfolder]: For 220083/220145 co-relation queries the response was YES. [2021-03-25 09:03:33,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 1015 events. 409/1015 cut-off events. For 220083/220145 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7354 event pairs, 13 based on Foata normal form. 1/1012 useless extension candidates. Maximal degree in co-relation 20741. Up to 597 conditions per place. [2021-03-25 09:03:33,614 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-25 09:03:33,641 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:33,641 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 09:03:33,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 279 [2021-03-25 09:03:33,641 INFO L480 AbstractCegarLoop]: Abstraction has has 511 places, 484 transitions, 13632 flow [2021-03-25 09:03:33,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:33,641 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:33,641 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:33,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:33,842 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:33,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:33,842 INFO L82 PathProgramCache]: Analyzing trace with hash -11086500, now seen corresponding path program 1 times [2021-03-25 09:03:33,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:33,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900838646] [2021-03-25 09:03:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:33,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:33,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:33,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:33,872 INFO L142 QuantifierPusher]: treesize reduction 4572, result has 10.9 percent of original size [2021-03-25 09:03:33,875 INFO L147 QuantifierPusher]: treesize reduction 405, result has 27.8 percent of original size 156 [2021-03-25 09:03:34,022 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 37 [2021-03-25 09:03:34,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:03:34,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:34,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:34,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900838646] [2021-03-25 09:03:34,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069624726] [2021-03-25 09:03:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:34,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-25 09:03:34,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:34,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:34,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:34,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:34,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:34,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:34,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:34,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,096 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:34,096 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:34,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:34,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 323 [2021-03-25 09:03:34,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 564 [2021-03-25 09:03:34,103 INFO L142 QuantifierPusher]: treesize reduction 6891, result has 1.6 percent of original size [2021-03-25 09:03:34,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:03:34,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-25 09:03:34,188 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.8 percent of original size [2021-03-25 09:03:34,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1268 [2021-03-25 09:03:34,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:34,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:34,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2661 [2021-03-25 09:03:34,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2662 [2021-03-25 09:03:36,964 WARN L205 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 1897 DAG size of output: 47 [2021-03-25 09:03:36,965 INFO L142 QuantifierPusher]: treesize reduction 13085765, result has 0.0 percent of original size [2021-03-25 09:03:36,965 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:36,966 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,967 INFO L142 QuantifierPusher]: treesize reduction 109, result has 62.8 percent of original size [2021-03-25 09:03:36,967 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-25 09:03:36,967 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,968 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.1 percent of original size [2021-03-25 09:03:36,968 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:36,969 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,969 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,969 INFO L142 QuantifierPusher]: treesize reduction 106, result has 46.2 percent of original size [2021-03-25 09:03:36,970 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:36,970 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,971 INFO L142 QuantifierPusher]: treesize reduction 80, result has 50.3 percent of original size [2021-03-25 09:03:36,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:03:36,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:36,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 09:03:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:36,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:36,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:36,996 INFO L142 QuantifierPusher]: treesize reduction 14, result has 48.1 percent of original size [2021-03-25 09:03:36,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:36,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:03:36,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:36,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:36,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:36,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 09:03:36,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:37,003 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:37,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:37,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:03:37,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661849056] [2021-03-25 09:03:37,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:03:37,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:37,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:03:37,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:03:37,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 154 [2021-03-25 09:03:37,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 484 transitions, 13632 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:37,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:37,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 154 [2021-03-25 09:03:37,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:37,641 INFO L129 PetriNetUnfolder]: 410/1014 cut-off events. [2021-03-25 09:03:37,641 INFO L130 PetriNetUnfolder]: For 225976/225988 co-relation queries the response was YES. [2021-03-25 09:03:37,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21682 conditions, 1014 events. 410/1014 cut-off events. For 225976/225988 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7249 event pairs, 19 based on Foata normal form. 13/1023 useless extension candidates. Maximal degree in co-relation 21431. Up to 821 conditions per place. [2021-03-25 09:03:37,659 INFO L132 encePairwiseOnDemand]: 140/154 looper letters, 452 selfloop transitions, 32 changer transitions 0/489 dead transitions. [2021-03-25 09:03:37,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 489 transitions, 14713 flow [2021-03-25 09:03:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 09:03:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 09:03:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 192 transitions. [2021-03-25 09:03:37,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15584415584415584 [2021-03-25 09:03:37,660 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 192 transitions. [2021-03-25 09:03:37,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 192 transitions. [2021-03-25 09:03:37,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:37,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 192 transitions. [2021-03-25 09:03:37,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:37,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:37,661 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:37,661 INFO L185 Difference]: Start difference. First operand has 511 places, 484 transitions, 13632 flow. Second operand 8 states and 192 transitions. [2021-03-25 09:03:37,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 489 transitions, 14713 flow [2021-03-25 09:03:38,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 506 places, 489 transitions, 12757 flow, removed 962 selfloop flow, removed 9 redundant places. [2021-03-25 09:03:38,784 INFO L241 Difference]: Finished difference. Result has 507 places, 478 transitions, 11586 flow [2021-03-25 09:03:38,784 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=11318, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11586, PETRI_PLACES=507, PETRI_TRANSITIONS=478} [2021-03-25 09:03:38,784 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 491 predicate places. [2021-03-25 09:03:38,784 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:38,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 478 transitions, 11586 flow [2021-03-25 09:03:38,785 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 478 transitions, 11586 flow [2021-03-25 09:03:38,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 478 transitions, 11586 flow [2021-03-25 09:03:39,000 INFO L129 PetriNetUnfolder]: 407/1012 cut-off events. [2021-03-25 09:03:39,000 INFO L130 PetriNetUnfolder]: For 212936/212998 co-relation queries the response was YES. [2021-03-25 09:03:39,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19822 conditions, 1012 events. 407/1012 cut-off events. For 212936/212998 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7328 event pairs, 17 based on Foata normal form. 1/1008 useless extension candidates. Maximal degree in co-relation 19577. Up to 566 conditions per place. [2021-03-25 09:03:39,021 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-25 09:03:39,745 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-25 09:03:40,355 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:40,356 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 09:03:40,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1572 [2021-03-25 09:03:40,356 INFO L480 AbstractCegarLoop]: Abstraction has has 507 places, 478 transitions, 11643 flow [2021-03-25 09:03:40,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:40,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:40,356 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:40,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:40,556 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:40,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:40,557 INFO L82 PathProgramCache]: Analyzing trace with hash -466574131, now seen corresponding path program 1 times [2021-03-25 09:03:40,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:40,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74025959] [2021-03-25 09:03:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:40,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,594 INFO L142 QuantifierPusher]: treesize reduction 17342, result has 4.0 percent of original size [2021-03-25 09:03:40,597 INFO L147 QuantifierPusher]: treesize reduction 549, result has 24.7 percent of original size 180 [2021-03-25 09:03:40,730 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 35 [2021-03-25 09:03:40,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 09:03:40,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:40,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:40,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74025959] [2021-03-25 09:03:40,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638124787] [2021-03-25 09:03:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:40,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-25 09:03:40,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:40,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:40,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:40,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:40,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,798 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:40,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:40,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,799 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:40,800 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:40,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-03-25 09:03:40,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 381 [2021-03-25 09:03:40,808 INFO L142 QuantifierPusher]: treesize reduction 1576, result has 4.3 percent of original size [2021-03-25 09:03:40,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:03:40,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 09:03:40,839 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.8 percent of original size [2021-03-25 09:03:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1246 [2021-03-25 09:03:40,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:40,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:40,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2639 [2021-03-25 09:03:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2640 [2021-03-25 09:03:43,603 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 1909 DAG size of output: 42 [2021-03-25 09:03:43,604 INFO L142 QuantifierPusher]: treesize reduction 13085765, result has 0.0 percent of original size [2021-03-25 09:03:43,604 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:43,605 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:43,606 INFO L142 QuantifierPusher]: treesize reduction 90, result has 63.9 percent of original size [2021-03-25 09:03:43,608 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-25 09:03:43,608 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:43,609 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.4 percent of original size [2021-03-25 09:03:43,609 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:43,609 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:43,610 INFO L142 QuantifierPusher]: treesize reduction 30, result has 77.1 percent of original size [2021-03-25 09:03:43,610 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-25 09:03:43,611 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:43,611 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-25 09:03:43,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:03:43,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 09:03:43,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:43,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:03:43,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:03:43,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 09:03:43,635 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-25 09:03:43,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:43,639 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-25 09:03:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:43,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:43,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-25 09:03:43,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-25 09:03:43,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883335758] [2021-03-25 09:03:43,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 09:03:43,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 09:03:43,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 09:03:43,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 09:03:43,645 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 160 [2021-03-25 09:03:43,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 478 transitions, 11643 flow. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:43,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 09:03:43,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 160 [2021-03-25 09:03:43,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 09:03:44,285 INFO L129 PetriNetUnfolder]: 415/1022 cut-off events. [2021-03-25 09:03:44,285 INFO L130 PetriNetUnfolder]: For 224896/224908 co-relation queries the response was YES. [2021-03-25 09:03:44,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21368 conditions, 1022 events. 415/1022 cut-off events. For 224896/224908 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 7321 event pairs, 18 based on Foata normal form. 9/1024 useless extension candidates. Maximal degree in co-relation 21118. Up to 830 conditions per place. [2021-03-25 09:03:44,303 INFO L132 encePairwiseOnDemand]: 144/160 looper letters, 452 selfloop transitions, 25 changer transitions 0/482 dead transitions. [2021-03-25 09:03:44,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 482 transitions, 13092 flow [2021-03-25 09:03:44,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 09:03:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 09:03:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2021-03-25 09:03:44,304 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16160714285714287 [2021-03-25 09:03:44,304 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 181 transitions. [2021-03-25 09:03:44,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 181 transitions. [2021-03-25 09:03:44,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 09:03:44,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 181 transitions. [2021-03-25 09:03:44,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:44,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:44,305 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:44,305 INFO L185 Difference]: Start difference. First operand has 507 places, 478 transitions, 11643 flow. Second operand 7 states and 181 transitions. [2021-03-25 09:03:44,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 482 transitions, 13092 flow [2021-03-25 09:03:45,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 482 transitions, 12884 flow, removed 74 selfloop flow, removed 6 redundant places. [2021-03-25 09:03:45,430 INFO L241 Difference]: Finished difference. Result has 506 places, 477 transitions, 11554 flow [2021-03-25 09:03:45,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=11366, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11554, PETRI_PLACES=506, PETRI_TRANSITIONS=477} [2021-03-25 09:03:45,430 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 490 predicate places. [2021-03-25 09:03:45,430 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 09:03:45,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 506 places, 477 transitions, 11554 flow [2021-03-25 09:03:45,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 506 places, 477 transitions, 11554 flow [2021-03-25 09:03:45,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 506 places, 477 transitions, 11554 flow [2021-03-25 09:03:45,649 INFO L129 PetriNetUnfolder]: 412/1019 cut-off events. [2021-03-25 09:03:45,649 INFO L130 PetriNetUnfolder]: For 223735/223797 co-relation queries the response was YES. [2021-03-25 09:03:45,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20371 conditions, 1019 events. 412/1019 cut-off events. For 223735/223797 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 7387 event pairs, 18 based on Foata normal form. 1/1013 useless extension candidates. Maximal degree in co-relation 20125. Up to 578 conditions per place. [2021-03-25 09:03:45,672 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 09:03:45,855 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 09:03:45,855 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 09:03:45,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 425 [2021-03-25 09:03:45,856 INFO L480 AbstractCegarLoop]: Abstraction has has 506 places, 477 transitions, 11562 flow [2021-03-25 09:03:45,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 09:03:45,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 09:03:45,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 09:03:46,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable687 [2021-03-25 09:03:46,056 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 09:03:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 09:03:46,057 INFO L82 PathProgramCache]: Analyzing trace with hash 467733559, now seen corresponding path program 1 times [2021-03-25 09:03:46,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 09:03:46,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235751663] [2021-03-25 09:03:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 09:03:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:46,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,159 INFO L142 QuantifierPusher]: treesize reduction 259046, result has 0.1 percent of original size [2021-03-25 09:03:46,160 INFO L147 QuantifierPusher]: treesize reduction 127, result has 62.8 percent of original size 214 [2021-03-25 09:03:46,269 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2021-03-25 09:03:46,270 INFO L142 QuantifierPusher]: treesize reduction 67, result has 25.6 percent of original size [2021-03-25 09:03:46,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 09:03:46,283 INFO L142 QuantifierPusher]: treesize reduction 67, result has 23.9 percent of original size [2021-03-25 09:03:46,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 09:03:46,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-25 09:03:46,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 09:03:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235751663] [2021-03-25 09:03:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555293849] [2021-03-25 09:03:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-25 09:03:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 09:03:46,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-25 09:03:46,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-25 09:03:46,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 09:03:46,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:46,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 09:03:46,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,358 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-25 09:03:46,358 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-25 09:03:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-25 09:03:46,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-03-25 09:03:46,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-25 09:03:46,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-03-25 09:03:46,364 INFO L142 QuantifierPusher]: treesize reduction 93, result has 61.6 percent of original size [2021-03-25 09:03:46,364 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:46,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,366 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:46,366 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,366 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-25 09:03:46,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-25 09:03:46,372 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-25 09:03:46,372 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-25 09:03:46,373 INFO L142 QuantifierPusher]: treesize reduction 52, result has 54.0 percent of original size [2021-03-25 09:03:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-25 09:03:46,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-25 09:03:46,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-25 09:03:46,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-25 09:03:46,502 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-03-25 09:03:46,503 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.9 percent of original size [2021-03-25 09:03:46,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4984 [2021-03-25 09:03:46,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 09:03:46,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9183 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown