/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-RepeatedSemanticLbeWithPredicates.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 [2021-03-26 04:43:03,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 04:43:03,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 04:43:03,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 04:43:03,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 04:43:03,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 04:43:03,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 04:43:03,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 04:43:03,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 04:43:03,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 04:43:03,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 04:43:03,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 04:43:03,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 04:43:03,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 04:43:03,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 04:43:03,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 04:43:03,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 04:43:03,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 04:43:03,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 04:43:03,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 04:43:03,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 04:43:03,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 04:43:03,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 04:43:03,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 04:43:03,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 04:43:03,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 04:43:03,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 04:43:03,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 04:43:03,340 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 04:43:03,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 04:43:03,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 04:43:03,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 04:43:03,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 04:43:03,377 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 04:43:03,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 04:43:03,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 04:43:03,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 04:43:03,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 04:43:03,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 04:43:03,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 04:43:03,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 04:43:03,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 04:43:03,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 04:43:03,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 04:43:03,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 04:43:03,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 04:43:03,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 04:43:03,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 04:43:03,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 04:43:03,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 04:43:03,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 04:43:03,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 04:43:03,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 04:43:03,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 04:43:03,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 04:43:03,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 04:43:03,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 04:43:03,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 04:43:03,698 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 04:43:03,699 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 04:43:03,700 INFO L432 ainManager$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 [2021-03-26 04:43:03,700 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/chromosome-opt-symm.wvr.bpl' [2021-03-26 04:43:03,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 04:43:03,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 04:43:03,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 04:43:03,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 04:43:03,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 04:43:03,740 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,745 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 04:43:03,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 04:43:03,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 04:43:03,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 04:43:03,758 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,758 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,759 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,759 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,762 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,763 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,764 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 26.03 04:43:03" (1/1) ... [2021-03-26 04:43:03,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 04:43:03,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 04:43:03,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 04:43:03,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 04:43:03,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:43:03" (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 [2021-03-26 04:43:03,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 04:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 04:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 04:43:03,835 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 04:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 04:43:03,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 04:43:03,835 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 04:43:03,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 04:43:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 04:43:03,836 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 04:43:04,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 04:43:04,116 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-03-26 04:43:04,117 INFO L202 PluginConnector]: Adding new model chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 04:43:04 BoogieIcfgContainer [2021-03-26 04:43:04,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 04:43:04,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 04:43:04,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 04:43:04,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 04:43:04,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 04:43:03" (1/2) ... [2021-03-26 04:43:04,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364bcd67 and model type chromosome-opt-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 04:43:04, skipping insertion in model container [2021-03-26 04:43:04,122 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 26.03 04:43:04" (2/2) ... [2021-03-26 04:43:04,123 INFO L111 eAbstractionObserver]: Analyzing ICFG chromosome-opt-symm.wvr.bpl [2021-03-26 04:43:04,127 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 04:43:04,131 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 04:43:04,131 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 04:43:04,175 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 04:43:04,189 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 04:43:04,205 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 04:43:04,206 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 04:43:04,206 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 04:43:04,206 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 04:43:04,206 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 04:43:04,206 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 04:43:04,206 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 04:43:04,206 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 04:43:04,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 18 transitions, 52 flow [2021-03-26 04:43:04,263 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2021-03-26 04:43:04,263 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:43:04,266 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. [2021-03-26 04:43:04,266 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 18 transitions, 52 flow [2021-03-26 04:43:04,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 19 places, 14 transitions, 40 flow [2021-03-26 04:43:04,270 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:04,293 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-26 04:43:04,295 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 40 flow [2021-03-26 04:43:04,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 40 flow [2021-03-26 04:43:04,307 INFO L129 PetriNetUnfolder]: 2/14 cut-off events. [2021-03-26 04:43:04,307 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:43:04,308 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. [2021-03-26 04:43:04,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:43:04,417 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 04:43:04,417 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 04:43:04,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 152 [2021-03-26 04:43:04,437 INFO L129 PetriNetUnfolder]: 2/10 cut-off events. [2021-03-26 04:43:04,437 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:43:04,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:04,438 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:04,438 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:04,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1541524741, now seen corresponding path program 1 times [2021-03-26 04:43:04,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:04,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701781680] [2021-03-26 04:43:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:04,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:04,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:04,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:04,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:04,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:04,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:04,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:04,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701781680] [2021-03-26 04:43:04,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:04,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:04,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832107707] [2021-03-26 04:43:04,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:04,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:04,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:04,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:04,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 21 [2021-03-26 04:43:04,646 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) [2021-03-26 04:43:04,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:04,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 21 [2021-03-26 04:43:04,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:04,695 INFO L129 PetriNetUnfolder]: 7/21 cut-off events. [2021-03-26 04:43:04,695 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 04:43:04,697 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. [2021-03-26 04:43:04,699 INFO L132 encePairwiseOnDemand]: 17/21 looper letters, 5 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2021-03-26 04:43:04,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 15 transitions, 58 flow [2021-03-26 04:43:04,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2021-03-26 04:43:04,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2021-03-26 04:43:04,710 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 69 transitions. [2021-03-26 04:43:04,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 69 transitions. [2021-03-26 04:43:04,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:04,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 69 transitions. [2021-03-26 04:43:04,717 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) [2021-03-26 04:43:04,721 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) [2021-03-26 04:43:04,722 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) [2021-03-26 04:43:04,723 INFO L185 Difference]: Start difference. First operand has 16 places, 11 transitions, 34 flow. Second operand 4 states and 69 transitions. [2021-03-26 04:43:04,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 15 transitions, 58 flow [2021-03-26 04:43:04,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 50 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:04,732 INFO L241 Difference]: Finished difference. Result has 17 places, 13 transitions, 47 flow [2021-03-26 04:43:04,740 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} [2021-03-26 04:43:04,742 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2021-03-26 04:43:04,742 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:04,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-26 04:43:04,743 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 13 transitions, 47 flow [2021-03-26 04:43:04,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 13 transitions, 47 flow [2021-03-26 04:43:04,752 INFO L129 PetriNetUnfolder]: 4/16 cut-off events. [2021-03-26 04:43:04,752 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 04:43:04,752 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. [2021-03-26 04:43:04,753 INFO L142 LiptonReduction]: Number of co-enabled transitions 32 [2021-03-26 04:43:04,971 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 04:43:04,972 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:04,972 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 230 [2021-03-26 04:43:04,974 INFO L480 AbstractCegarLoop]: Abstraction has has 16 places, 12 transitions, 41 flow [2021-03-26 04:43:04,975 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) [2021-03-26 04:43:04,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:04,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:04,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 04:43:04,976 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:04,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1583311973, now seen corresponding path program 2 times [2021-03-26 04:43:04,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:04,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358369254] [2021-03-26 04:43:04,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:05,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:05,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358369254] [2021-03-26 04:43:05,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:05,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:05,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139541094] [2021-03-26 04:43:05,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:05,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:05,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:05,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:05,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 22 [2021-03-26 04:43:05,027 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) [2021-03-26 04:43:05,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:05,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 22 [2021-03-26 04:43:05,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:05,050 INFO L129 PetriNetUnfolder]: 7/23 cut-off events. [2021-03-26 04:43:05,050 INFO L130 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2021-03-26 04:43:05,050 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. [2021-03-26 04:43:05,051 INFO L132 encePairwiseOnDemand]: 17/22 looper letters, 5 selfloop transitions, 4 changer transitions 0/16 dead transitions. [2021-03-26 04:43:05,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 16 transitions, 70 flow [2021-03-26 04:43:05,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 04:43:05,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7954545454545454 [2021-03-26 04:43:05,053 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:05,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,054 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) [2021-03-26 04:43:05,054 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) [2021-03-26 04:43:05,055 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) [2021-03-26 04:43:05,055 INFO L185 Difference]: Start difference. First operand has 16 places, 12 transitions, 41 flow. Second operand 4 states and 70 transitions. [2021-03-26 04:43:05,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 16 transitions, 70 flow [2021-03-26 04:43:05,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 16 transitions, 62 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:05,056 INFO L241 Difference]: Finished difference. Result has 19 places, 14 transitions, 60 flow [2021-03-26 04:43:05,057 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} [2021-03-26 04:43:05,057 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 3 predicate places. [2021-03-26 04:43:05,057 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:05,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-26 04:43:05,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 14 transitions, 60 flow [2021-03-26 04:43:05,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 60 flow [2021-03-26 04:43:05,062 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-03-26 04:43:05,062 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-26 04:43:05,062 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 21 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. [2021-03-26 04:43:05,062 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 04:43:05,260 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 04:43:05,260 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:05,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-03-26 04:43:05,261 INFO L480 AbstractCegarLoop]: Abstraction has has 18 places, 13 transitions, 54 flow [2021-03-26 04:43:05,261 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) [2021-03-26 04:43:05,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:05,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:05,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 04:43:05,262 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:05,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:05,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1525824884, now seen corresponding path program 1 times [2021-03-26 04:43:05,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:05,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946549277] [2021-03-26 04:43:05,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:05,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:05,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946549277] [2021-03-26 04:43:05,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:05,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:05,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145434646] [2021-03-26 04:43:05,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:05,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:05,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:05,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:05,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 04:43:05,350 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) [2021-03-26 04:43:05,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:05,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 04:43:05,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:05,393 INFO L129 PetriNetUnfolder]: 7/26 cut-off events. [2021-03-26 04:43:05,393 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-26 04:43:05,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 26 events. 7/26 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. 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. [2021-03-26 04:43:05,394 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 0/16 dead transitions. [2021-03-26 04:43:05,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 87 flow [2021-03-26 04:43:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 04:43:05,396 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-26 04:43:05,396 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:05,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,398 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) [2021-03-26 04:43:05,400 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) [2021-03-26 04:43:05,400 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) [2021-03-26 04:43:05,400 INFO L185 Difference]: Start difference. First operand has 18 places, 13 transitions, 54 flow. Second operand 4 states and 70 transitions. [2021-03-26 04:43:05,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 87 flow [2021-03-26 04:43:05,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 16 transitions, 74 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:05,402 INFO L241 Difference]: Finished difference. Result has 21 places, 15 transitions, 66 flow [2021-03-26 04:43:05,402 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} [2021-03-26 04:43:05,402 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 5 predicate places. [2021-03-26 04:43:05,402 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:05,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-26 04:43:05,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 15 transitions, 66 flow [2021-03-26 04:43:05,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 15 transitions, 66 flow [2021-03-26 04:43:05,407 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-26 04:43:05,407 INFO L130 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2021-03-26 04:43:05,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 24 events. 5/24 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 46 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. [2021-03-26 04:43:05,408 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 04:43:05,408 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:05,409 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:05,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 04:43:05,410 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 66 flow [2021-03-26 04:43:05,410 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) [2021-03-26 04:43:05,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:05,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:05,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 04:43:05,410 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:05,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1575831549, now seen corresponding path program 1 times [2021-03-26 04:43:05,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:05,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710434621] [2021-03-26 04:43:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:05,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:05,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710434621] [2021-03-26 04:43:05,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:05,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:05,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481569098] [2021-03-26 04:43:05,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:05,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:05,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:05,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:05,447 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 04:43:05,447 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) [2021-03-26 04:43:05,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:05,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 04:43:05,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:05,479 INFO L129 PetriNetUnfolder]: 8/37 cut-off events. [2021-03-26 04:43:05,479 INFO L130 PetriNetUnfolder]: For 27/32 co-relation queries the response was YES. [2021-03-26 04:43:05,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 37 events. 8/37 cut-off events. For 27/32 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 107 event pairs, 0 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 63. Up to 13 conditions per place. [2021-03-26 04:43:05,480 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 3 changer transitions 0/18 dead transitions. [2021-03-26 04:43:05,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 94 flow [2021-03-26 04:43:05,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-03-26 04:43:05,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-26 04:43:05,481 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:05,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-03-26 04:43:05,482 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) [2021-03-26 04:43:05,483 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) [2021-03-26 04:43:05,483 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) [2021-03-26 04:43:05,483 INFO L185 Difference]: Start difference. First operand has 21 places, 15 transitions, 66 flow. Second operand 4 states and 70 transitions. [2021-03-26 04:43:05,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 94 flow [2021-03-26 04:43:05,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 90 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:05,484 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 82 flow [2021-03-26 04:43:05,485 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2021-03-26 04:43:05,485 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 9 predicate places. [2021-03-26 04:43:05,485 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:05,485 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 82 flow [2021-03-26 04:43:05,485 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 17 transitions, 82 flow [2021-03-26 04:43:05,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 17 transitions, 82 flow [2021-03-26 04:43:05,490 INFO L129 PetriNetUnfolder]: 5/31 cut-off events. [2021-03-26 04:43:05,490 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-26 04:43:05,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 31 events. 5/31 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 81 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 48. Up to 8 conditions per place. [2021-03-26 04:43:05,491 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 04:43:05,492 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:05,492 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:05,492 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 04:43:05,493 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 82 flow [2021-03-26 04:43:05,493 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) [2021-03-26 04:43:05,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:05,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:05,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 04:43:05,493 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:05,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1514463263, now seen corresponding path program 2 times [2021-03-26 04:43:05,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:05,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890184914] [2021-03-26 04:43:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:05,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:05,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890184914] [2021-03-26 04:43:05,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:05,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:05,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449801251] [2021-03-26 04:43:05,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:05,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:05,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:05,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:05,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 04:43:05,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 82 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) [2021-03-26 04:43:05,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:05,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 04:43:05,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:05,589 INFO L129 PetriNetUnfolder]: 10/36 cut-off events. [2021-03-26 04:43:05,590 INFO L130 PetriNetUnfolder]: For 39/43 co-relation queries the response was YES. [2021-03-26 04:43:05,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 36 events. 10/36 cut-off events. For 39/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 91 event pairs, 1 based on Foata normal form. 3/31 useless extension candidates. Maximal degree in co-relation 83. Up to 13 conditions per place. [2021-03-26 04:43:05,592 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 5 selfloop transitions, 4 changer transitions 1/19 dead transitions. [2021-03-26 04:43:05,592 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 115 flow [2021-03-26 04:43:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:05,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-26 04:43:05,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-26 04:43:05,594 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:05,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,594 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) [2021-03-26 04:43:05,596 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) [2021-03-26 04:43:05,596 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) [2021-03-26 04:43:05,596 INFO L185 Difference]: Start difference. First operand has 25 places, 17 transitions, 82 flow. Second operand 4 states and 71 transitions. [2021-03-26 04:43:05,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 115 flow [2021-03-26 04:43:05,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 108 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:05,598 INFO L241 Difference]: Finished difference. Result has 28 places, 18 transitions, 95 flow [2021-03-26 04:43:05,598 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2021-03-26 04:43:05,598 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 12 predicate places. [2021-03-26 04:43:05,598 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:05,599 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 18 transitions, 95 flow [2021-03-26 04:43:05,599 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 18 transitions, 95 flow [2021-03-26 04:43:05,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 18 transitions, 95 flow [2021-03-26 04:43:05,605 INFO L129 PetriNetUnfolder]: 7/30 cut-off events. [2021-03-26 04:43:05,605 INFO L130 PetriNetUnfolder]: For 27/30 co-relation queries the response was YES. [2021-03-26 04:43:05,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 30 events. 7/30 cut-off events. For 27/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 64 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 56. Up to 9 conditions per place. [2021-03-26 04:43:05,606 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 04:43:05,608 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:05,608 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:05,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 04:43:05,610 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 95 flow [2021-03-26 04:43:05,611 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) [2021-03-26 04:43:05,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:05,611 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:05,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 04:43:05,611 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:05,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1470413624, now seen corresponding path program 2 times [2021-03-26 04:43:05,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:05,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232455386] [2021-03-26 04:43:05,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:05,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:05,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232455386] [2021-03-26 04:43:05,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:05,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:05,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124970692] [2021-03-26 04:43:05,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:05,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:05,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:05,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:05,667 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 23 [2021-03-26 04:43:05,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 95 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) [2021-03-26 04:43:05,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:05,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 23 [2021-03-26 04:43:05,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:05,711 INFO L129 PetriNetUnfolder]: 9/28 cut-off events. [2021-03-26 04:43:05,711 INFO L130 PetriNetUnfolder]: For 56/62 co-relation queries the response was YES. [2021-03-26 04:43:05,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 28 events. 9/28 cut-off events. For 56/62 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 55 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 78. Up to 14 conditions per place. [2021-03-26 04:43:05,711 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 6 selfloop transitions, 4 changer transitions 1/20 dead transitions. [2021-03-26 04:43:05,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 127 flow [2021-03-26 04:43:05,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:05,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 71 transitions. [2021-03-26 04:43:05,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7717391304347826 [2021-03-26 04:43:05,715 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:05,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 71 transitions. [2021-03-26 04:43:05,718 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) [2021-03-26 04:43:05,718 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) [2021-03-26 04:43:05,718 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) [2021-03-26 04:43:05,718 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 95 flow. Second operand 4 states and 71 transitions. [2021-03-26 04:43:05,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 127 flow [2021-03-26 04:43:05,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 20 transitions, 115 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:05,723 INFO L241 Difference]: Finished difference. Result has 28 places, 19 transitions, 100 flow [2021-03-26 04:43:05,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=24, 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=100, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2021-03-26 04:43:05,723 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 12 predicate places. [2021-03-26 04:43:05,723 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:05,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 19 transitions, 100 flow [2021-03-26 04:43:05,724 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 19 transitions, 100 flow [2021-03-26 04:43:05,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 19 transitions, 100 flow [2021-03-26 04:43:05,732 INFO L129 PetriNetUnfolder]: 8/27 cut-off events. [2021-03-26 04:43:05,732 INFO L130 PetriNetUnfolder]: For 27/30 co-relation queries the response was YES. [2021-03-26 04:43:05,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 27 events. 8/27 cut-off events. For 27/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 56. Up to 9 conditions per place. [2021-03-26 04:43:05,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-26 04:43:05,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:05,743 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:05,743 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 04:43:05,747 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 100 flow [2021-03-26 04:43:05,747 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) [2021-03-26 04:43:05,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:05,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:05,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 04:43:05,748 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:05,748 INFO L82 PathProgramCache]: Analyzing trace with hash -958820151, now seen corresponding path program 1 times [2021-03-26 04:43:05,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:05,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741135651] [2021-03-26 04:43:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:05,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:05,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:05,891 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.8 percent of original size [2021-03-26 04:43:05,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:05,931 INFO L142 QuantifierPusher]: treesize reduction 5, result has 79.2 percent of original size [2021-03-26 04:43:05,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:05,952 INFO L142 QuantifierPusher]: treesize reduction 5, result has 68.8 percent of original size [2021-03-26 04:43:05,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:43:05,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:05,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741135651] [2021-03-26 04:43:05,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369208964] [2021-03-26 04:43:05,977 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 [2021-03-26 04:43:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:06,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:43:06,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:06,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:06,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:06,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:06,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:06,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:06,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:06,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,068 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:06,068 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:06,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:06,076 INFO L142 QuantifierPusher]: treesize reduction 7, result has 87.5 percent of original size [2021-03-26 04:43:06,076 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:06,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:06,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,088 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:06,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:43:06,099 INFO L142 QuantifierPusher]: treesize reduction 158, result has 34.2 percent of original size [2021-03-26 04:43:06,105 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-26 04:43:06,108 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-26 04:43:06,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 04:43:06,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:06,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 04:43:06,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,157 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 04:43:06,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 04:43:06,165 INFO L142 QuantifierPusher]: treesize reduction 46, result has 80.8 percent of original size [2021-03-26 04:43:06,169 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,171 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:06,175 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:06,179 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,185 INFO L142 QuantifierPusher]: treesize reduction 222, result has 35.3 percent of original size [2021-03-26 04:43:06,188 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:06,190 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,193 INFO L142 QuantifierPusher]: treesize reduction 121, result has 27.5 percent of original size [2021-03-26 04:43:06,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:06,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:06,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:06,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:06,249 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:06,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:06,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:06,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:06,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:06,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:06,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,292 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 04:43:06,292 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:06,295 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,303 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 04:43:06,304 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:06,308 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,312 INFO L142 QuantifierPusher]: treesize reduction 103, result has 24.3 percent of original size [2021-03-26 04:43:06,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:06,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:06,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:06,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:06,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:06,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:06,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:06,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:06,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,367 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:06,367 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:06,370 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,374 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:06,374 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:06,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:06,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:06,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 04:43:06,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-03-26 04:43:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869480326] [2021-03-26 04:43:06,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:06,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:06,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:06,410 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 23 [2021-03-26 04:43:06,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 100 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) [2021-03-26 04:43:06,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:06,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 23 [2021-03-26 04:43:06,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:06,635 INFO L129 PetriNetUnfolder]: 27/67 cut-off events. [2021-03-26 04:43:06,635 INFO L130 PetriNetUnfolder]: For 77/83 co-relation queries the response was YES. [2021-03-26 04:43:06,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 67 events. 27/67 cut-off events. For 77/83 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 199 event pairs, 1 based on Foata normal form. 5/55 useless extension candidates. Maximal degree in co-relation 183. Up to 27 conditions per place. [2021-03-26 04:43:06,637 INFO L132 encePairwiseOnDemand]: 16/23 looper letters, 18 selfloop transitions, 9 changer transitions 2/33 dead transitions. [2021-03-26 04:43:06,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 216 flow [2021-03-26 04:43:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2021-03-26 04:43:06,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6231884057971014 [2021-03-26 04:43:06,638 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 86 transitions. [2021-03-26 04:43:06,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 86 transitions. [2021-03-26 04:43:06,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:06,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 86 transitions. [2021-03-26 04:43:06,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:06,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 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) [2021-03-26 04:43:06,640 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 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) [2021-03-26 04:43:06,640 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 100 flow. Second operand 6 states and 86 transitions. [2021-03-26 04:43:06,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 216 flow [2021-03-26 04:43:06,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 202 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:06,643 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 146 flow [2021-03-26 04:43:06,643 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-03-26 04:43:06,643 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 16 predicate places. [2021-03-26 04:43:06,643 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:06,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 146 flow [2021-03-26 04:43:06,644 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 146 flow [2021-03-26 04:43:06,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 146 flow [2021-03-26 04:43:06,651 INFO L129 PetriNetUnfolder]: 10/41 cut-off events. [2021-03-26 04:43:06,651 INFO L130 PetriNetUnfolder]: For 45/46 co-relation queries the response was YES. [2021-03-26 04:43:06,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 41 events. 10/41 cut-off events. For 45/46 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 115 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 107. Up to 16 conditions per place. [2021-03-26 04:43:06,654 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 04:43:07,057 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 04:43:07,057 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:07,057 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 414 [2021-03-26 04:43:07,058 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 159 flow [2021-03-26 04:43:07,058 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) [2021-03-26 04:43:07,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:07,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:07,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-03-26 04:43:07,273 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:07,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:07,273 INFO L82 PathProgramCache]: Analyzing trace with hash -139763483, now seen corresponding path program 2 times [2021-03-26 04:43:07,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:07,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598799647] [2021-03-26 04:43:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:07,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:07,364 INFO L142 QuantifierPusher]: treesize reduction 775, result has 10.9 percent of original size [2021-03-26 04:43:07,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 04:43:07,460 INFO L142 QuantifierPusher]: treesize reduction 2169, result has 12.4 percent of original size [2021-03-26 04:43:07,466 INFO L147 QuantifierPusher]: treesize reduction 86, result has 72.1 percent of original size 222 [2021-03-26 04:43:07,545 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-03-26 04:43:07,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:07,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598799647] [2021-03-26 04:43:07,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109931633] [2021-03-26 04:43:07,570 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:07,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:07,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:07,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:43:07,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:07,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:07,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:07,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:07,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:07,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,642 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:07,643 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:07,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:07,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:07,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:07,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:07,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 04:43:07,655 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-26 04:43:07,657 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-26 04:43:07,658 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-26 04:43:07,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:07,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:43:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:07,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:43:07,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,716 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:07,717 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:07,718 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,720 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:07,720 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:07,724 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:07,728 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:07,729 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,732 INFO L142 QuantifierPusher]: treesize reduction 66, result has 52.5 percent of original size [2021-03-26 04:43:07,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:43:07,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:07,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:07,795 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.5 percent of original size [2021-03-26 04:43:07,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:07,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-03-26 04:43:07,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-03-26 04:43:07,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-03-26 04:43:07,811 INFO L142 QuantifierPusher]: treesize reduction 265, result has 41.1 percent of original size [2021-03-26 04:43:07,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,815 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:07,818 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:07,819 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,819 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,823 INFO L142 QuantifierPusher]: treesize reduction 206, result has 35.0 percent of original size [2021-03-26 04:43:07,824 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:07,825 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,827 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-26 04:43:07,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:07,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:07,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:07,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:07,868 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:07,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:07,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:07,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,871 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,872 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:07,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:07,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:07,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,879 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,882 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:07,882 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:07,883 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,886 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:07,888 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:07,889 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:07,890 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:07,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:07,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:07,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:07,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:07,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127894437] [2021-03-26 04:43:07,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:07,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:07,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:07,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:07,921 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 25 [2021-03-26 04:43:07,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 159 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) [2021-03-26 04:43:07,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:07,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 25 [2021-03-26 04:43:07,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:08,187 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2021-03-26 04:43:08,600 INFO L129 PetriNetUnfolder]: 37/95 cut-off events. [2021-03-26 04:43:08,600 INFO L130 PetriNetUnfolder]: For 225/257 co-relation queries the response was YES. [2021-03-26 04:43:08,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 95 events. 37/95 cut-off events. For 225/257 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 328 event pairs, 5 based on Foata normal form. 8/91 useless extension candidates. Maximal degree in co-relation 330. Up to 56 conditions per place. [2021-03-26 04:43:08,601 INFO L132 encePairwiseOnDemand]: 18/25 looper letters, 21 selfloop transitions, 23 changer transitions 1/49 dead transitions. [2021-03-26 04:43:08,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 394 flow [2021-03-26 04:43:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 04:43:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 04:43:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 160 transitions. [2021-03-26 04:43:08,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2021-03-26 04:43:08,604 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 160 transitions. [2021-03-26 04:43:08,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 160 transitions. [2021-03-26 04:43:08,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:08,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 160 transitions. [2021-03-26 04:43:08,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.333333333333334) internal successors, (160), 12 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) [2021-03-26 04:43:08,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 25.0) internal successors, (325), 13 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:08,606 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 25.0) internal successors, (325), 13 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:08,606 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 159 flow. Second operand 12 states and 160 transitions. [2021-03-26 04:43:08,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 394 flow [2021-03-26 04:43:08,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 367 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:08,608 INFO L241 Difference]: Finished difference. Result has 45 places, 45 transitions, 351 flow [2021-03-26 04:43:08,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=351, PETRI_PLACES=45, PETRI_TRANSITIONS=45} [2021-03-26 04:43:08,609 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 29 predicate places. [2021-03-26 04:43:08,609 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:08,609 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 45 transitions, 351 flow [2021-03-26 04:43:08,609 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 45 transitions, 351 flow [2021-03-26 04:43:08,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 45 transitions, 351 flow [2021-03-26 04:43:08,616 INFO L129 PetriNetUnfolder]: 25/76 cut-off events. [2021-03-26 04:43:08,616 INFO L130 PetriNetUnfolder]: For 123/126 co-relation queries the response was YES. [2021-03-26 04:43:08,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 76 events. 25/76 cut-off events. For 123/126 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 269 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 266. Up to 28 conditions per place. [2021-03-26 04:43:08,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 04:43:09,448 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-03-26 04:43:09,482 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:09,483 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 04:43:09,483 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 874 [2021-03-26 04:43:09,483 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 359 flow [2021-03-26 04:43:09,483 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) [2021-03-26 04:43:09,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:09,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:09,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-26 04:43:09,699 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:09,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:09,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1480684302, now seen corresponding path program 1 times [2021-03-26 04:43:09,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:09,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709518815] [2021-03-26 04:43:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:09,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:09,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:09,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:09,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709518815] [2021-03-26 04:43:09,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:09,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:09,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936840742] [2021-03-26 04:43:09,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:09,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:09,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:09,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:09,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2021-03-26 04:43:09,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 359 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) [2021-03-26 04:43:09,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:09,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2021-03-26 04:43:09,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:09,812 INFO L129 PetriNetUnfolder]: 35/102 cut-off events. [2021-03-26 04:43:09,812 INFO L130 PetriNetUnfolder]: For 264/273 co-relation queries the response was YES. [2021-03-26 04:43:09,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 102 events. 35/102 cut-off events. For 264/273 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 400 event pairs, 1 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 412. Up to 47 conditions per place. [2021-03-26 04:43:09,813 INFO L132 encePairwiseOnDemand]: 24/30 looper letters, 33 selfloop transitions, 7 changer transitions 1/53 dead transitions. [2021-03-26 04:43:09,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 506 flow [2021-03-26 04:43:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2021-03-26 04:43:09,814 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2021-03-26 04:43:09,814 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 82 transitions. [2021-03-26 04:43:09,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 82 transitions. [2021-03-26 04:43:09,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:09,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 82 transitions. [2021-03-26 04:43:09,815 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) [2021-03-26 04:43:09,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:09,816 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:09,816 INFO L185 Difference]: Start difference. First operand has 43 places, 44 transitions, 359 flow. Second operand 4 states and 82 transitions. [2021-03-26 04:43:09,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 506 flow [2021-03-26 04:43:09,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 422 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:09,822 INFO L241 Difference]: Finished difference. Result has 46 places, 46 transitions, 324 flow [2021-03-26 04:43:09,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2021-03-26 04:43:09,823 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 30 predicate places. [2021-03-26 04:43:09,823 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:09,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions, 324 flow [2021-03-26 04:43:09,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 324 flow [2021-03-26 04:43:09,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 324 flow [2021-03-26 04:43:09,833 INFO L129 PetriNetUnfolder]: 27/92 cut-off events. [2021-03-26 04:43:09,834 INFO L130 PetriNetUnfolder]: For 190/193 co-relation queries the response was YES. [2021-03-26 04:43:09,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 92 events. 27/92 cut-off events. For 190/193 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 381 event pairs, 0 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 273. Up to 30 conditions per place. [2021-03-26 04:43:09,835 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 04:43:09,838 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:09,838 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:09,838 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 04:43:09,838 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 324 flow [2021-03-26 04:43:09,839 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) [2021-03-26 04:43:09,839 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:09,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:09,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 04:43:09,839 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:09,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1590613092, now seen corresponding path program 2 times [2021-03-26 04:43:09,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:09,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424339596] [2021-03-26 04:43:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:09,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:09,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:09,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:09,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:09,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:09,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424339596] [2021-03-26 04:43:09,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:09,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:09,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551323136] [2021-03-26 04:43:09,897 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:09,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:09,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:09,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:09,898 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2021-03-26 04:43:09,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 324 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) [2021-03-26 04:43:09,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:09,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2021-03-26 04:43:09,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:09,936 INFO L129 PetriNetUnfolder]: 37/105 cut-off events. [2021-03-26 04:43:09,936 INFO L130 PetriNetUnfolder]: For 339/346 co-relation queries the response was YES. [2021-03-26 04:43:09,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 105 events. 37/105 cut-off events. For 339/346 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 397 event pairs, 3 based on Foata normal form. 5/109 useless extension candidates. Maximal degree in co-relation 400. Up to 52 conditions per place. [2021-03-26 04:43:09,937 INFO L132 encePairwiseOnDemand]: 23/30 looper letters, 29 selfloop transitions, 9 changer transitions 0/50 dead transitions. [2021-03-26 04:43:09,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 50 transitions, 430 flow [2021-03-26 04:43:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2021-03-26 04:43:09,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-03-26 04:43:09,938 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 80 transitions. [2021-03-26 04:43:09,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 80 transitions. [2021-03-26 04:43:09,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:09,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 80 transitions. [2021-03-26 04:43:09,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 20.0) internal successors, (80), 4 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) [2021-03-26 04:43:09,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:09,939 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:09,939 INFO L185 Difference]: Start difference. First operand has 46 places, 46 transitions, 324 flow. Second operand 4 states and 80 transitions. [2021-03-26 04:43:09,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 50 transitions, 430 flow [2021-03-26 04:43:09,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 50 transitions, 405 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:09,942 INFO L241 Difference]: Finished difference. Result has 49 places, 47 transitions, 333 flow [2021-03-26 04:43:09,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=333, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2021-03-26 04:43:09,943 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 33 predicate places. [2021-03-26 04:43:09,943 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:09,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 47 transitions, 333 flow [2021-03-26 04:43:09,943 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 47 transitions, 333 flow [2021-03-26 04:43:09,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 47 transitions, 333 flow [2021-03-26 04:43:09,952 INFO L129 PetriNetUnfolder]: 30/95 cut-off events. [2021-03-26 04:43:09,952 INFO L130 PetriNetUnfolder]: For 185/186 co-relation queries the response was YES. [2021-03-26 04:43:09,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 95 events. 30/95 cut-off events. For 185/186 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 381 event pairs, 0 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 282. Up to 29 conditions per place. [2021-03-26 04:43:09,953 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 04:43:09,957 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:09,958 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:09,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 04:43:09,958 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 333 flow [2021-03-26 04:43:09,958 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) [2021-03-26 04:43:09,958 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:09,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:09,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 04:43:09,959 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:09,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:09,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1507912126, now seen corresponding path program 1 times [2021-03-26 04:43:09,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:09,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023957198] [2021-03-26 04:43:09,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:10,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,029 INFO L142 QuantifierPusher]: treesize reduction 36, result has 62.1 percent of original size [2021-03-26 04:43:10,030 INFO L147 QuantifierPusher]: treesize reduction 4, result has 93.2 percent of original size 55 [2021-03-26 04:43:10,076 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:10,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:10,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:10,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023957198] [2021-03-26 04:43:10,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:10,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:10,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967035088] [2021-03-26 04:43:10,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:43:10,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:10,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:43:10,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:43:10,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2021-03-26 04:43:10,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 333 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) [2021-03-26 04:43:10,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:10,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2021-03-26 04:43:10,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:10,552 INFO L129 PetriNetUnfolder]: 51/147 cut-off events. [2021-03-26 04:43:10,552 INFO L130 PetriNetUnfolder]: For 387/395 co-relation queries the response was YES. [2021-03-26 04:43:10,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 147 events. 51/147 cut-off events. For 387/395 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 651 event pairs, 5 based on Foata normal form. 3/132 useless extension candidates. Maximal degree in co-relation 550. Up to 91 conditions per place. [2021-03-26 04:43:10,554 INFO L132 encePairwiseOnDemand]: 19/30 looper letters, 36 selfloop transitions, 24 changer transitions 1/65 dead transitions. [2021-03-26 04:43:10,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 585 flow [2021-03-26 04:43:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:43:10,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:43:10,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2021-03-26 04:43:10,555 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4633333333333333 [2021-03-26 04:43:10,555 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 139 transitions. [2021-03-26 04:43:10,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 139 transitions. [2021-03-26 04:43:10,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:10,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 139 transitions. [2021-03-26 04:43:10,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.9) internal successors, (139), 10 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:10,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 30.0) internal successors, (330), 11 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:10,556 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 30.0) internal successors, (330), 11 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:10,556 INFO L185 Difference]: Start difference. First operand has 49 places, 47 transitions, 333 flow. Second operand 10 states and 139 transitions. [2021-03-26 04:43:10,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 585 flow [2021-03-26 04:43:10,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:10,560 INFO L241 Difference]: Finished difference. Result has 60 places, 60 transitions, 505 flow [2021-03-26 04:43:10,560 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=505, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2021-03-26 04:43:10,560 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 44 predicate places. [2021-03-26 04:43:10,560 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:10,560 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 505 flow [2021-03-26 04:43:10,561 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 505 flow [2021-03-26 04:43:10,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 60 transitions, 505 flow [2021-03-26 04:43:10,573 INFO L129 PetriNetUnfolder]: 46/138 cut-off events. [2021-03-26 04:43:10,573 INFO L130 PetriNetUnfolder]: For 354/361 co-relation queries the response was YES. [2021-03-26 04:43:10,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 138 events. 46/138 cut-off events. For 354/361 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 628 event pairs, 1 based on Foata normal form. 3/124 useless extension candidates. Maximal degree in co-relation 501. Up to 48 conditions per place. [2021-03-26 04:43:10,575 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 04:43:10,580 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:10,580 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:10,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 04:43:10,580 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 505 flow [2021-03-26 04:43:10,580 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) [2021-03-26 04:43:10,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:10,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:10,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 04:43:10,581 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:10,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:10,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1391518689, now seen corresponding path program 1 times [2021-03-26 04:43:10,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:10,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899446761] [2021-03-26 04:43:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:10,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,622 INFO L142 QuantifierPusher]: treesize reduction 46, result has 27.0 percent of original size [2021-03-26 04:43:10,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:10,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:10,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899446761] [2021-03-26 04:43:10,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:10,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:10,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760368201] [2021-03-26 04:43:10,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:10,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:10,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:10,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:10,631 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2021-03-26 04:43:10,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 505 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) [2021-03-26 04:43:10,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:10,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2021-03-26 04:43:10,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:10,681 INFO L129 PetriNetUnfolder]: 47/131 cut-off events. [2021-03-26 04:43:10,682 INFO L130 PetriNetUnfolder]: For 537/546 co-relation queries the response was YES. [2021-03-26 04:43:10,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 131 events. 47/131 cut-off events. For 537/546 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 556 event pairs, 4 based on Foata normal form. 6/137 useless extension candidates. Maximal degree in co-relation 556. Up to 73 conditions per place. [2021-03-26 04:43:10,683 INFO L132 encePairwiseOnDemand]: 24/30 looper letters, 40 selfloop transitions, 6 changer transitions 1/61 dead transitions. [2021-03-26 04:43:10,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 599 flow [2021-03-26 04:43:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-03-26 04:43:10,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2021-03-26 04:43:10,684 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 77 transitions. [2021-03-26 04:43:10,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 77 transitions. [2021-03-26 04:43:10,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:10,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 77 transitions. [2021-03-26 04:43:10,685 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) [2021-03-26 04:43:10,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:10,685 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:10,685 INFO L185 Difference]: Start difference. First operand has 59 places, 60 transitions, 505 flow. Second operand 4 states and 77 transitions. [2021-03-26 04:43:10,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 599 flow [2021-03-26 04:43:10,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 510 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:10,690 INFO L241 Difference]: Finished difference. Result has 60 places, 58 transitions, 407 flow [2021-03-26 04:43:10,690 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=407, PETRI_PLACES=60, PETRI_TRANSITIONS=58} [2021-03-26 04:43:10,690 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 44 predicate places. [2021-03-26 04:43:10,690 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:10,690 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 58 transitions, 407 flow [2021-03-26 04:43:10,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 58 transitions, 407 flow [2021-03-26 04:43:10,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 58 transitions, 407 flow [2021-03-26 04:43:10,701 INFO L129 PetriNetUnfolder]: 44/124 cut-off events. [2021-03-26 04:43:10,702 INFO L130 PetriNetUnfolder]: For 235/237 co-relation queries the response was YES. [2021-03-26 04:43:10,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 124 events. 44/124 cut-off events. For 235/237 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 516 event pairs, 1 based on Foata normal form. 2/107 useless extension candidates. Maximal degree in co-relation 383. Up to 44 conditions per place. [2021-03-26 04:43:10,703 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 04:43:10,707 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:10,708 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:10,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 04:43:10,709 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 58 transitions, 407 flow [2021-03-26 04:43:10,709 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) [2021-03-26 04:43:10,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:10,710 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:10,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 04:43:10,710 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:10,710 INFO L82 PathProgramCache]: Analyzing trace with hash -101729559, now seen corresponding path program 3 times [2021-03-26 04:43:10,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:10,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072984030] [2021-03-26 04:43:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,767 INFO L142 QuantifierPusher]: treesize reduction 36, result has 62.1 percent of original size [2021-03-26 04:43:10,768 INFO L147 QuantifierPusher]: treesize reduction 4, result has 93.2 percent of original size 55 [2021-03-26 04:43:10,814 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 04:43:10,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:43:10,832 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:10,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:10,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072984030] [2021-03-26 04:43:10,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87338149] [2021-03-26 04:43:10,852 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 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 [2021-03-26 04:43:10,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:43:10,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:10,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:43:10,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:10,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:10,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:10,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:10,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,905 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:10,905 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:10,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:10,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:10,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:10,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:10,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 04:43:10,916 INFO L142 QuantifierPusher]: treesize reduction 23, result has 79.3 percent of original size [2021-03-26 04:43:10,917 INFO L147 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size 75 [2021-03-26 04:43:10,923 INFO L142 QuantifierPusher]: treesize reduction 8, result has 90.4 percent of original size [2021-03-26 04:43:10,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:10,961 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.8 percent of original size [2021-03-26 04:43:10,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:10,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 04:43:10,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 04:43:10,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 04:43:10,986 INFO L142 QuantifierPusher]: treesize reduction 265, result has 42.1 percent of original size [2021-03-26 04:43:10,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,988 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:10,990 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:10,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,995 INFO L142 QuantifierPusher]: treesize reduction 212, result has 36.3 percent of original size [2021-03-26 04:43:10,996 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:10,996 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:10,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:10,997 INFO L142 QuantifierPusher]: treesize reduction 124, result has 27.1 percent of original size [2021-03-26 04:43:11,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:11,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:11,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:11,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:43:11,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:11,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:43:11,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,038 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 04:43:11,038 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:11,039 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,044 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 04:43:11,045 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-26 04:43:11,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:11,072 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:11,072 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:11,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:11,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:11,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:11,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:11,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,088 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:11,088 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:11,089 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,091 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:11,092 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:11,093 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:11,094 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:11,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:11,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:11,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:11,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:11,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66616607] [2021-03-26 04:43:11,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:11,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:11,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:11,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:11,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2021-03-26 04:43:11,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 407 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) [2021-03-26 04:43:11,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:11,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2021-03-26 04:43:11,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:11,982 INFO L129 PetriNetUnfolder]: 47/145 cut-off events. [2021-03-26 04:43:11,982 INFO L130 PetriNetUnfolder]: For 392/400 co-relation queries the response was YES. [2021-03-26 04:43:11,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 145 events. 47/145 cut-off events. For 392/400 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 667 event pairs, 5 based on Foata normal form. 10/136 useless extension candidates. Maximal degree in co-relation 569. Up to 82 conditions per place. [2021-03-26 04:43:11,984 INFO L132 encePairwiseOnDemand]: 21/30 looper letters, 39 selfloop transitions, 24 changer transitions 5/72 dead transitions. [2021-03-26 04:43:11,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 72 transitions, 661 flow [2021-03-26 04:43:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 04:43:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 04:43:11,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 198 transitions. [2021-03-26 04:43:11,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44 [2021-03-26 04:43:11,985 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 198 transitions. [2021-03-26 04:43:11,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 198 transitions. [2021-03-26 04:43:11,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:11,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 198 transitions. [2021-03-26 04:43:11,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.2) internal successors, (198), 15 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) [2021-03-26 04:43:11,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 30.0) internal successors, (480), 16 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) [2021-03-26 04:43:11,987 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 30.0) internal successors, (480), 16 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) [2021-03-26 04:43:11,987 INFO L185 Difference]: Start difference. First operand has 59 places, 58 transitions, 407 flow. Second operand 15 states and 198 transitions. [2021-03-26 04:43:11,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 72 transitions, 661 flow [2021-03-26 04:43:11,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 632 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:11,991 INFO L241 Difference]: Finished difference. Result has 73 places, 61 transitions, 510 flow [2021-03-26 04:43:11,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=510, PETRI_PLACES=73, PETRI_TRANSITIONS=61} [2021-03-26 04:43:11,992 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 57 predicate places. [2021-03-26 04:43:11,992 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:11,992 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 61 transitions, 510 flow [2021-03-26 04:43:11,992 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 61 transitions, 510 flow [2021-03-26 04:43:11,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 61 transitions, 510 flow [2021-03-26 04:43:12,003 INFO L129 PetriNetUnfolder]: 42/125 cut-off events. [2021-03-26 04:43:12,003 INFO L130 PetriNetUnfolder]: For 334/336 co-relation queries the response was YES. [2021-03-26 04:43:12,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 125 events. 42/125 cut-off events. For 334/336 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 523 event pairs, 1 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 482. Up to 50 conditions per place. [2021-03-26 04:43:12,004 INFO L142 LiptonReduction]: Number of co-enabled transitions 68 [2021-03-26 04:43:12,559 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:12,559 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 04:43:12,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 567 [2021-03-26 04:43:12,560 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 530 flow [2021-03-26 04:43:12,560 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) [2021-03-26 04:43:12,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:12,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:12,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-03-26 04:43:12,769 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:12,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1374012622, now seen corresponding path program 1 times [2021-03-26 04:43:12,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:12,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303348598] [2021-03-26 04:43:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:12,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,806 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 04:43:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:12,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303348598] [2021-03-26 04:43:12,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183830926] [2021-03-26 04:43:12,822 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 [2021-03-26 04:43:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:12,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 04:43:12,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:12,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,862 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:12,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:12,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:12,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:12,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,866 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:12,866 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:12,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:43:12,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:43:12,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-03-26 04:43:12,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:12,886 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.3 percent of original size [2021-03-26 04:43:12,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:12,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:12,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:12,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 04:43:12,891 INFO L142 QuantifierPusher]: treesize reduction 234, result has 7.9 percent of original size [2021-03-26 04:43:12,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:12,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:12,893 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:12,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:12,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:12,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:12,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 04:43:12,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131830520] [2021-03-26 04:43:12,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:43:12,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:12,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:43:12,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:43:12,900 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 34 [2021-03-26 04:43:12,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 530 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) [2021-03-26 04:43:12,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:12,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 34 [2021-03-26 04:43:12,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:12,962 INFO L129 PetriNetUnfolder]: 46/126 cut-off events. [2021-03-26 04:43:12,963 INFO L130 PetriNetUnfolder]: For 563/563 co-relation queries the response was YES. [2021-03-26 04:43:12,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 126 events. 46/126 cut-off events. For 563/563 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 485 event pairs, 4 based on Foata normal form. 3/127 useless extension candidates. Maximal degree in co-relation 599. Up to 69 conditions per place. [2021-03-26 04:43:12,964 INFO L132 encePairwiseOnDemand]: 27/34 looper letters, 37 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2021-03-26 04:43:12,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 621 flow [2021-03-26 04:43:12,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:43:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:43:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 96 transitions. [2021-03-26 04:43:12,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647058823529412 [2021-03-26 04:43:12,965 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 96 transitions. [2021-03-26 04:43:12,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 96 transitions. [2021-03-26 04:43:12,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:12,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 96 transitions. [2021-03-26 04:43:12,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 19.2) internal successors, (96), 5 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) [2021-03-26 04:43:12,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:12,966 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:12,966 INFO L185 Difference]: Start difference. First operand has 68 places, 61 transitions, 530 flow. Second operand 5 states and 96 transitions. [2021-03-26 04:43:12,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 621 flow [2021-03-26 04:43:12,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 60 transitions, 502 flow, removed 44 selfloop flow, removed 9 redundant places. [2021-03-26 04:43:12,972 INFO L241 Difference]: Finished difference. Result has 62 places, 59 transitions, 423 flow [2021-03-26 04:43:12,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=423, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2021-03-26 04:43:12,973 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 46 predicate places. [2021-03-26 04:43:12,973 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:12,973 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 59 transitions, 423 flow [2021-03-26 04:43:12,973 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 59 transitions, 423 flow [2021-03-26 04:43:12,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 423 flow [2021-03-26 04:43:12,984 INFO L129 PetriNetUnfolder]: 43/119 cut-off events. [2021-03-26 04:43:12,984 INFO L130 PetriNetUnfolder]: For 360/362 co-relation queries the response was YES. [2021-03-26 04:43:12,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 119 events. 43/119 cut-off events. For 360/362 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 458 event pairs, 1 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 427. Up to 50 conditions per place. [2021-03-26 04:43:12,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 04:43:12,990 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:12,990 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:12,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-26 04:43:12,992 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 423 flow [2021-03-26 04:43:12,992 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) [2021-03-26 04:43:12,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:12,992 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:13,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:13,208 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:13,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1692405268, now seen corresponding path program 1 times [2021-03-26 04:43:13,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:13,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64436771] [2021-03-26 04:43:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:13,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:13,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:13,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:13,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64436771] [2021-03-26 04:43:13,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142758539] [2021-03-26 04:43:13,244 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:13,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2021-03-26 04:43:13,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:13,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:13,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:13,297 INFO L142 QuantifierPusher]: treesize reduction 53, result has 39.8 percent of original size [2021-03-26 04:43:13,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:13,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:13,313 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 04:43:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:13,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:13,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:13,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:13,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:13,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:13,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:13,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 04:43:13,320 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 04:43:13,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:13,332 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:13,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:13,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:13,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 04:43:13,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367067398] [2021-03-26 04:43:13,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:43:13,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:13,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:43:13,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:43:13,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2021-03-26 04:43:13,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 423 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) [2021-03-26 04:43:13,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:13,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2021-03-26 04:43:13,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:13,432 INFO L129 PetriNetUnfolder]: 54/142 cut-off events. [2021-03-26 04:43:13,433 INFO L130 PetriNetUnfolder]: For 575/583 co-relation queries the response was YES. [2021-03-26 04:43:13,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 142 events. 54/142 cut-off events. For 575/583 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 575 event pairs, 4 based on Foata normal form. 1/128 useless extension candidates. Maximal degree in co-relation 630. Up to 60 conditions per place. [2021-03-26 04:43:13,434 INFO L132 encePairwiseOnDemand]: 26/34 looper letters, 56 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2021-03-26 04:43:13,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 689 flow [2021-03-26 04:43:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 104 transitions. [2021-03-26 04:43:13,435 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5098039215686274 [2021-03-26 04:43:13,435 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 104 transitions. [2021-03-26 04:43:13,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 104 transitions. [2021-03-26 04:43:13,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:13,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 104 transitions. [2021-03-26 04:43:13,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 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) [2021-03-26 04:43:13,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:13,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 34.0) internal successors, (238), 7 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:13,437 INFO L185 Difference]: Start difference. First operand has 61 places, 59 transitions, 423 flow. Second operand 6 states and 104 transitions. [2021-03-26 04:43:13,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 71 transitions, 689 flow [2021-03-26 04:43:13,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 71 transitions, 665 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:13,442 INFO L241 Difference]: Finished difference. Result has 64 places, 60 transitions, 437 flow [2021-03-26 04:43:13,442 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2021-03-26 04:43:13,442 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 48 predicate places. [2021-03-26 04:43:13,442 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:13,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 437 flow [2021-03-26 04:43:13,443 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 437 flow [2021-03-26 04:43:13,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 437 flow [2021-03-26 04:43:13,453 INFO L129 PetriNetUnfolder]: 48/133 cut-off events. [2021-03-26 04:43:13,454 INFO L130 PetriNetUnfolder]: For 502/507 co-relation queries the response was YES. [2021-03-26 04:43:13,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 133 events. 48/133 cut-off events. For 502/507 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 531 event pairs, 2 based on Foata normal form. 2/118 useless extension candidates. Maximal degree in co-relation 514. Up to 60 conditions per place. [2021-03-26 04:43:13,455 INFO L142 LiptonReduction]: Number of co-enabled transitions 62 [2021-03-26 04:43:13,689 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 04:43:13,689 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:13,689 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 247 [2021-03-26 04:43:13,692 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 433 flow [2021-03-26 04:43:13,692 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) [2021-03-26 04:43:13,692 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:13,692 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:13,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-03-26 04:43:13,900 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:13,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:13,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1017563307, now seen corresponding path program 1 times [2021-03-26 04:43:13,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:13,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113974067] [2021-03-26 04:43:13,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:13,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:13,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:13,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:13,967 INFO L142 QuantifierPusher]: treesize reduction 405, result has 19.2 percent of original size [2021-03-26 04:43:13,968 INFO L147 QuantifierPusher]: treesize reduction 46, result has 52.1 percent of original size 50 [2021-03-26 04:43:14,031 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 04:43:14,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:14,045 INFO L142 QuantifierPusher]: treesize reduction -1, result has 112.5 percent of original size [2021-03-26 04:43:14,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:14,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:14,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113974067] [2021-03-26 04:43:14,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744194529] [2021-03-26 04:43:14,059 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 [2021-03-26 04:43:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:14,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 04:43:14,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:14,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:14,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:14,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:14,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:14,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:14,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:14,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,100 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:14,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:14,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:14,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:14,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 269 [2021-03-26 04:43:14,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,109 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:14,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 722 [2021-03-26 04:43:14,115 INFO L142 QuantifierPusher]: treesize reduction 1254, result has 10.4 percent of original size [2021-03-26 04:43:14,117 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.3 percent of original size 132 [2021-03-26 04:43:14,118 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.3 percent of original size [2021-03-26 04:43:14,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 04:43:14,232 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-03-26 04:43:14,233 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.3 percent of original size [2021-03-26 04:43:14,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:14,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 04:43:14,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-26 04:43:14,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-03-26 04:43:14,248 INFO L142 QuantifierPusher]: treesize reduction 46, result has 83.3 percent of original size [2021-03-26 04:43:14,248 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,250 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:14,251 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:14,252 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,254 INFO L142 QuantifierPusher]: treesize reduction 240, result has 42.2 percent of original size [2021-03-26 04:43:14,256 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:43:14,257 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,258 INFO L142 QuantifierPusher]: treesize reduction 164, result has 32.8 percent of original size [2021-03-26 04:43:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:14,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:14,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:14,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:14,300 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:43:14,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:14,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:14,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:14,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:43:14,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,310 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 04:43:14,310 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:14,311 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,313 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:43:14,314 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:14,315 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,317 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 04:43:14,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:14,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:14,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:14,343 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:14,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:14,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:14,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,347 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:14,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:14,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:14,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,349 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,351 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:14,351 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:14,353 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,354 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:14,354 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:14,355 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:14,356 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:43:14,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:14,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:14,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:14,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:14,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912826029] [2021-03-26 04:43:14,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:14,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:14,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:14,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:14,381 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2021-03-26 04:43:14,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 433 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) [2021-03-26 04:43:14,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:14,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2021-03-26 04:43:14,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:14,709 INFO L129 PetriNetUnfolder]: 60/167 cut-off events. [2021-03-26 04:43:14,709 INFO L130 PetriNetUnfolder]: For 761/767 co-relation queries the response was YES. [2021-03-26 04:43:14,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 167 events. 60/167 cut-off events. For 761/767 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 762 event pairs, 6 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 795. Up to 113 conditions per place. [2021-03-26 04:43:14,711 INFO L132 encePairwiseOnDemand]: 26/35 looper letters, 51 selfloop transitions, 19 changer transitions 5/79 dead transitions. [2021-03-26 04:43:14,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 79 transitions, 812 flow [2021-03-26 04:43:14,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:43:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:43:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 134 transitions. [2021-03-26 04:43:14,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4253968253968254 [2021-03-26 04:43:14,712 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 134 transitions. [2021-03-26 04:43:14,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 134 transitions. [2021-03-26 04:43:14,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:14,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 134 transitions. [2021-03-26 04:43:14,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 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) [2021-03-26 04:43:14,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 35.0) internal successors, (350), 10 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:14,714 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 35.0) internal successors, (350), 10 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:14,714 INFO L185 Difference]: Start difference. First operand has 63 places, 59 transitions, 433 flow. Second operand 9 states and 134 transitions. [2021-03-26 04:43:14,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 79 transitions, 812 flow [2021-03-26 04:43:14,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 79 transitions, 761 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-03-26 04:43:14,719 INFO L241 Difference]: Finished difference. Result has 70 places, 70 transitions, 589 flow [2021-03-26 04:43:14,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=589, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2021-03-26 04:43:14,719 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 54 predicate places. [2021-03-26 04:43:14,719 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:14,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 70 transitions, 589 flow [2021-03-26 04:43:14,720 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 70 transitions, 589 flow [2021-03-26 04:43:14,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 70 transitions, 589 flow [2021-03-26 04:43:14,733 INFO L129 PetriNetUnfolder]: 55/153 cut-off events. [2021-03-26 04:43:14,733 INFO L130 PetriNetUnfolder]: For 891/893 co-relation queries the response was YES. [2021-03-26 04:43:14,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 153 events. 55/153 cut-off events. For 891/893 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 680 event pairs, 2 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 675. Up to 75 conditions per place. [2021-03-26 04:43:14,734 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 04:43:15,339 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:15,339 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 04:43:15,339 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 620 [2021-03-26 04:43:15,340 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 606 flow [2021-03-26 04:43:15,340 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) [2021-03-26 04:43:15,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:15,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:15,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:15,560 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:15,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:15,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1648162750, now seen corresponding path program 1 times [2021-03-26 04:43:15,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:15,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664542862] [2021-03-26 04:43:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:15,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,617 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 04:43:15,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:15,623 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-03-26 04:43:15,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:43:15,641 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-03-26 04:43:15,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:43:15,652 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.3 percent of original size [2021-03-26 04:43:15,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:15,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:15,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664542862] [2021-03-26 04:43:15,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60491977] [2021-03-26 04:43:15,682 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) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:15,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:15,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:15,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:15,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:15,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:15,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:15,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,727 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,728 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,728 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,729 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:15,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:15,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:15,752 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 04:43:15,753 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:15,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:15,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 04:43:15,766 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 04:43:15,767 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 04:43:15,768 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 04:43:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:43:15,852 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-26 04:43:15,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:15,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:15,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:15,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:15,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:43:15,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,860 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:15,860 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,861 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,861 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:15,862 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,862 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:15,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,864 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,865 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,866 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 04:43:15,867 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:43:15,868 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:43:15,868 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:15,869 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,869 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,870 INFO L142 QuantifierPusher]: treesize reduction 155, result has 25.1 percent of original size [2021-03-26 04:43:15,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:15,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:15,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:15,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:15,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-03-26 04:43:15,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 755 [2021-03-26 04:43:15,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 756 [2021-03-26 04:43:15,919 INFO L142 QuantifierPusher]: treesize reduction 1270, result has 11.4 percent of original size [2021-03-26 04:43:15,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,921 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:15,922 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:15,923 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,924 INFO L142 QuantifierPusher]: treesize reduction 180, result has 34.5 percent of original size [2021-03-26 04:43:15,926 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:15,927 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,928 INFO L142 QuantifierPusher]: treesize reduction 36, result has 41.9 percent of original size [2021-03-26 04:43:15,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:15,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:15,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:15,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:15,968 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:15,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:15,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:15,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:15,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:15,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:15,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,975 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:15,975 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,976 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,977 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:15,977 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:15,978 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,979 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:15,979 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:43:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:15,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:15,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:15,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:16,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:16,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:16,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:16,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:16,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212853994] [2021-03-26 04:43:16,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:16,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:16,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:16,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:16,014 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2021-03-26 04:43:16,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 70 transitions, 606 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) [2021-03-26 04:43:16,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:16,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2021-03-26 04:43:16,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:16,743 INFO L129 PetriNetUnfolder]: 82/215 cut-off events. [2021-03-26 04:43:16,743 INFO L130 PetriNetUnfolder]: For 1364/1388 co-relation queries the response was YES. [2021-03-26 04:43:16,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 215 events. 82/215 cut-off events. For 1364/1388 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1051 event pairs, 4 based on Foata normal form. 9/220 useless extension candidates. Maximal degree in co-relation 1175. Up to 114 conditions per place. [2021-03-26 04:43:16,745 INFO L132 encePairwiseOnDemand]: 29/38 looper letters, 71 selfloop transitions, 27 changer transitions 4/106 dead transitions. [2021-03-26 04:43:16,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 106 transitions, 1266 flow [2021-03-26 04:43:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 04:43:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 04:43:16,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 188 transitions. [2021-03-26 04:43:16,747 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3805668016194332 [2021-03-26 04:43:16,747 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 188 transitions. [2021-03-26 04:43:16,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 188 transitions. [2021-03-26 04:43:16,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:16,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 188 transitions. [2021-03-26 04:43:16,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 14.461538461538462) internal successors, (188), 13 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) [2021-03-26 04:43:16,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:16,749 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 38.0) internal successors, (532), 14 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:16,749 INFO L185 Difference]: Start difference. First operand has 69 places, 70 transitions, 606 flow. Second operand 13 states and 188 transitions. [2021-03-26 04:43:16,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 106 transitions, 1266 flow [2021-03-26 04:43:16,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 106 transitions, 1228 flow, removed 19 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:16,756 INFO L241 Difference]: Finished difference. Result has 85 places, 88 transitions, 922 flow [2021-03-26 04:43:16,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=922, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2021-03-26 04:43:16,757 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 69 predicate places. [2021-03-26 04:43:16,757 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:16,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 88 transitions, 922 flow [2021-03-26 04:43:16,757 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 88 transitions, 922 flow [2021-03-26 04:43:16,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 88 transitions, 922 flow [2021-03-26 04:43:16,776 INFO L129 PetriNetUnfolder]: 70/193 cut-off events. [2021-03-26 04:43:16,776 INFO L130 PetriNetUnfolder]: For 1891/1897 co-relation queries the response was YES. [2021-03-26 04:43:16,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 193 events. 70/193 cut-off events. For 1891/1897 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 947 event pairs, 4 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 1063. Up to 104 conditions per place. [2021-03-26 04:43:16,778 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-26 04:43:16,901 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-03-26 04:43:17,620 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:17,620 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 04:43:17,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 863 [2021-03-26 04:43:17,620 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 88 transitions, 950 flow [2021-03-26 04:43:17,621 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) [2021-03-26 04:43:17,621 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:17,621 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:17,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-03-26 04:43:17,836 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:17,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:17,836 INFO L82 PathProgramCache]: Analyzing trace with hash -88800265, now seen corresponding path program 1 times [2021-03-26 04:43:17,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:17,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897958230] [2021-03-26 04:43:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:17,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,864 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-26 04:43:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:17,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:43:17,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:17,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:17,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897958230] [2021-03-26 04:43:17,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444782159] [2021-03-26 04:43:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:17,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 04:43:17,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:17,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:17,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:17,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:17,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:17,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:17,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,952 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:17,953 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:17,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:17,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 04:43:17,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:17,958 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-26 04:43:17,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:43:17,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:43:17,981 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.5 percent of original size [2021-03-26 04:43:17,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:17,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:17,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:43:17,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 04:43:17,986 INFO L142 QuantifierPusher]: treesize reduction 160, result has 41.8 percent of original size [2021-03-26 04:43:17,990 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:17,991 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:17,992 INFO L142 QuantifierPusher]: treesize reduction 96, result has 48.1 percent of original size [2021-03-26 04:43:17,993 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:17,993 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:17,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:17,994 INFO L142 QuantifierPusher]: treesize reduction 84, result has 31.1 percent of original size [2021-03-26 04:43:17,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:17,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:18,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:18,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:18,017 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:43:18,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,019 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:18,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:18,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:18,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 04:43:18,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137943572] [2021-03-26 04:43:18,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:43:18,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:18,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:43:18,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:43:18,026 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2021-03-26 04:43:18,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 88 transitions, 950 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) [2021-03-26 04:43:18,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:18,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2021-03-26 04:43:18,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:18,255 INFO L129 PetriNetUnfolder]: 81/201 cut-off events. [2021-03-26 04:43:18,255 INFO L130 PetriNetUnfolder]: For 2186/2214 co-relation queries the response was YES. [2021-03-26 04:43:18,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 201 events. 81/201 cut-off events. For 2186/2214 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 919 event pairs, 7 based on Foata normal form. 10/209 useless extension candidates. Maximal degree in co-relation 1312. Up to 130 conditions per place. [2021-03-26 04:43:18,257 INFO L132 encePairwiseOnDemand]: 27/42 looper letters, 56 selfloop transitions, 31 changer transitions 0/92 dead transitions. [2021-03-26 04:43:18,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 1258 flow [2021-03-26 04:43:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:43:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:43:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-26 04:43:18,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2021-03-26 04:43:18,258 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-26 04:43:18,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-26 04:43:18,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:18,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-26 04:43:18,259 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) [2021-03-26 04:43:18,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 42.0) internal successors, (462), 11 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:18,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 42.0) internal successors, (462), 11 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:18,260 INFO L185 Difference]: Start difference. First operand has 83 places, 88 transitions, 950 flow. Second operand 10 states and 160 transitions. [2021-03-26 04:43:18,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 1258 flow [2021-03-26 04:43:18,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 1026 flow, removed 109 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:18,271 INFO L241 Difference]: Finished difference. Result has 88 places, 89 transitions, 888 flow [2021-03-26 04:43:18,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=888, PETRI_PLACES=88, PETRI_TRANSITIONS=89} [2021-03-26 04:43:18,272 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 72 predicate places. [2021-03-26 04:43:18,272 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:18,272 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 89 transitions, 888 flow [2021-03-26 04:43:18,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 89 transitions, 888 flow [2021-03-26 04:43:18,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 888 flow [2021-03-26 04:43:18,290 INFO L129 PetriNetUnfolder]: 80/194 cut-off events. [2021-03-26 04:43:18,290 INFO L130 PetriNetUnfolder]: For 2018/2032 co-relation queries the response was YES. [2021-03-26 04:43:18,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 194 events. 80/194 cut-off events. For 2018/2032 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 878 event pairs, 2 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 1095. Up to 108 conditions per place. [2021-03-26 04:43:18,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 04:43:18,295 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:18,295 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:18,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 04:43:18,296 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 89 transitions, 888 flow [2021-03-26 04:43:18,296 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) [2021-03-26 04:43:18,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:18,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:18,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-03-26 04:43:18,519 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:18,519 INFO L82 PathProgramCache]: Analyzing trace with hash 410331782, now seen corresponding path program 1 times [2021-03-26 04:43:18,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:18,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523313746] [2021-03-26 04:43:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:18,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,548 INFO L142 QuantifierPusher]: treesize reduction 46, result has 31.3 percent of original size [2021-03-26 04:43:18,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:18,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:18,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:18,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523313746] [2021-03-26 04:43:18,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438866204] [2021-03-26 04:43:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 04:43:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:18,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 04:43:18,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:18,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:18,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:18,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:18,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:18,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,626 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:18,627 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:18,627 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:18,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:18,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:18,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:18,648 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 04:43:18,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:18,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:18,650 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 04:43:18,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:18,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:18,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:18,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:18,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:18,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:18,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-26 04:43:18,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:18,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-03-26 04:43:18,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-26 04:43:18,725 INFO L142 QuantifierPusher]: treesize reduction 57, result has 37.4 percent of original size [2021-03-26 04:43:18,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:18,727 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:18,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:18,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:18,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:18,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 04:43:18,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450608289] [2021-03-26 04:43:18,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:18,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:18,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:18,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:43:18,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2021-03-26 04:43:18,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 888 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) [2021-03-26 04:43:18,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:18,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2021-03-26 04:43:18,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:19,068 INFO L129 PetriNetUnfolder]: 79/205 cut-off events. [2021-03-26 04:43:19,068 INFO L130 PetriNetUnfolder]: For 2060/2086 co-relation queries the response was YES. [2021-03-26 04:43:19,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 205 events. 79/205 cut-off events. For 2060/2086 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 970 event pairs, 7 based on Foata normal form. 9/214 useless extension candidates. Maximal degree in co-relation 1195. Up to 103 conditions per place. [2021-03-26 04:43:19,070 INFO L132 encePairwiseOnDemand]: 34/42 looper letters, 65 selfloop transitions, 19 changer transitions 0/96 dead transitions. [2021-03-26 04:43:19,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 1143 flow [2021-03-26 04:43:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:43:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:43:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2021-03-26 04:43:19,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2021-03-26 04:43:19,071 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 141 transitions. [2021-03-26 04:43:19,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 141 transitions. [2021-03-26 04:43:19,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:19,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 141 transitions. [2021-03-26 04:43:19,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:19,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 42.0) internal successors, (336), 8 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:19,073 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 42.0) internal successors, (336), 8 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:19,073 INFO L185 Difference]: Start difference. First operand has 88 places, 89 transitions, 888 flow. Second operand 7 states and 141 transitions. [2021-03-26 04:43:19,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 1143 flow [2021-03-26 04:43:19,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 96 transitions, 1076 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-26 04:43:19,082 INFO L241 Difference]: Finished difference. Result has 87 places, 89 transitions, 852 flow [2021-03-26 04:43:19,082 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=852, PETRI_PLACES=87, PETRI_TRANSITIONS=89} [2021-03-26 04:43:19,083 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 71 predicate places. [2021-03-26 04:43:19,083 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:19,083 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 89 transitions, 852 flow [2021-03-26 04:43:19,083 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 89 transitions, 852 flow [2021-03-26 04:43:19,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 852 flow [2021-03-26 04:43:19,100 INFO L129 PetriNetUnfolder]: 80/199 cut-off events. [2021-03-26 04:43:19,100 INFO L130 PetriNetUnfolder]: For 2011/2025 co-relation queries the response was YES. [2021-03-26 04:43:19,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 199 events. 80/199 cut-off events. For 2011/2025 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 930 event pairs, 3 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 1092. Up to 111 conditions per place. [2021-03-26 04:43:19,102 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 04:43:19,105 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:19,105 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:19,105 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 04:43:19,105 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 852 flow [2021-03-26 04:43:19,105 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) [2021-03-26 04:43:19,105 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:19,105 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:19,326 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:19,328 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:19,328 INFO L82 PathProgramCache]: Analyzing trace with hash 372849473, now seen corresponding path program 1 times [2021-03-26 04:43:19,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:19,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743676704] [2021-03-26 04:43:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:19,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,364 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 04:43:19,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:43:19,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:19,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:19,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743676704] [2021-03-26 04:43:19,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245491412] [2021-03-26 04:43:19,386 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 [2021-03-26 04:43:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:19,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:43:19,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:19,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:19,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:19,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:19,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:19,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,445 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:19,446 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:19,447 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:19,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:19,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:19,460 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 04:43:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:19,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:19,462 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 04:43:19,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:19,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:19,479 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 04:43:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:19,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-03-26 04:43:19,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,485 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:19,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-03-26 04:43:19,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 04:43:19,493 INFO L142 QuantifierPusher]: treesize reduction 60, result has 1.6 percent of original size [2021-03-26 04:43:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:19,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:19,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 04:43:19,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503522710] [2021-03-26 04:43:19,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:19,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:19,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:19,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:43:19,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2021-03-26 04:43:19,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 852 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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) [2021-03-26 04:43:19,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:19,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2021-03-26 04:43:19,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:19,690 INFO L129 PetriNetUnfolder]: 84/210 cut-off events. [2021-03-26 04:43:19,690 INFO L130 PetriNetUnfolder]: For 2027/2037 co-relation queries the response was YES. [2021-03-26 04:43:19,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 210 events. 84/210 cut-off events. For 2027/2037 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1006 event pairs, 3 based on Foata normal form. 2/212 useless extension candidates. Maximal degree in co-relation 1249. Up to 109 conditions per place. [2021-03-26 04:43:19,692 INFO L132 encePairwiseOnDemand]: 34/42 looper letters, 69 selfloop transitions, 14 changer transitions 1/96 dead transitions. [2021-03-26 04:43:19,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 96 transitions, 1134 flow [2021-03-26 04:43:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:43:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:43:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 157 transitions. [2021-03-26 04:43:19,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46726190476190477 [2021-03-26 04:43:19,693 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 157 transitions. [2021-03-26 04:43:19,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 157 transitions. [2021-03-26 04:43:19,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:19,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 157 transitions. [2021-03-26 04:43:19,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 19.625) internal successors, (157), 8 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) [2021-03-26 04:43:19,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 42.0) internal successors, (378), 9 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:19,695 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 42.0) internal successors, (378), 9 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:19,695 INFO L185 Difference]: Start difference. First operand has 87 places, 89 transitions, 852 flow. Second operand 8 states and 157 transitions. [2021-03-26 04:43:19,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 96 transitions, 1134 flow [2021-03-26 04:43:19,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 96 transitions, 1084 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-26 04:43:19,704 INFO L241 Difference]: Finished difference. Result has 87 places, 84 transitions, 779 flow [2021-03-26 04:43:19,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=779, PETRI_PLACES=87, PETRI_TRANSITIONS=84} [2021-03-26 04:43:19,705 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 71 predicate places. [2021-03-26 04:43:19,705 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:19,705 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 84 transitions, 779 flow [2021-03-26 04:43:19,705 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 84 transitions, 779 flow [2021-03-26 04:43:19,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 779 flow [2021-03-26 04:43:19,724 INFO L129 PetriNetUnfolder]: 85/204 cut-off events. [2021-03-26 04:43:19,724 INFO L130 PetriNetUnfolder]: For 2081/2086 co-relation queries the response was YES. [2021-03-26 04:43:19,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 204 events. 85/204 cut-off events. For 2081/2086 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 958 event pairs, 3 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 1156. Up to 118 conditions per place. [2021-03-26 04:43:19,726 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 04:43:19,728 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:19,728 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:19,729 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 04:43:19,729 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 779 flow [2021-03-26 04:43:19,729 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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) [2021-03-26 04:43:19,729 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:19,729 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:19,943 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:19,944 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:19,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:19,944 INFO L82 PathProgramCache]: Analyzing trace with hash 313917995, now seen corresponding path program 1 times [2021-03-26 04:43:19,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:19,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841503808] [2021-03-26 04:43:19,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:19,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:19,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:19,974 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size [2021-03-26 04:43:19,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 04:43:20,005 INFO L142 QuantifierPusher]: treesize reduction 1970, result has 10.5 percent of original size [2021-03-26 04:43:20,006 INFO L147 QuantifierPusher]: treesize reduction 139, result has 39.6 percent of original size 91 [2021-03-26 04:43:20,068 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:20,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:20,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:20,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841503808] [2021-03-26 04:43:20,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92749437] [2021-03-26 04:43:20,091 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 [2021-03-26 04:43:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:20,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 26 conjunts are in the unsatisfiable core [2021-03-26 04:43:20,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:20,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:20,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,140 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:20,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,142 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:20,142 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:20,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:20,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-03-26 04:43:20,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 426 [2021-03-26 04:43:20,152 INFO L142 QuantifierPusher]: treesize reduction 625, result has 11.6 percent of original size [2021-03-26 04:43:20,153 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-26 04:43:20,153 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-26 04:43:20,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 04:43:20,207 INFO L142 QuantifierPusher]: treesize reduction 7, result has 92.3 percent of original size [2021-03-26 04:43:20,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:20,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:20,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:20,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,211 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:20,212 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,212 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,212 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:20,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:20,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:20,256 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.8 percent of original size [2021-03-26 04:43:20,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:20,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:43:20,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-26 04:43:20,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-26 04:43:20,263 INFO L142 QuantifierPusher]: treesize reduction 62, result has 72.4 percent of original size [2021-03-26 04:43:20,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,265 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:20,265 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:20,266 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,267 INFO L142 QuantifierPusher]: treesize reduction 218, result has 25.1 percent of original size [2021-03-26 04:43:20,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:20,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:20,295 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:20,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:20,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:20,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:20,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,301 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:20,301 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:20,302 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,303 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:20,303 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:20,304 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:20,305 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:43:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:20,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:20,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:20,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813153447] [2021-03-26 04:43:20,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:20,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:20,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:20,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:20,329 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2021-03-26 04:43:20,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 779 flow. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 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) [2021-03-26 04:43:20,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:20,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2021-03-26 04:43:20,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:20,577 INFO L129 PetriNetUnfolder]: 85/215 cut-off events. [2021-03-26 04:43:20,577 INFO L130 PetriNetUnfolder]: For 1945/1971 co-relation queries the response was YES. [2021-03-26 04:43:20,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 215 events. 85/215 cut-off events. For 1945/1971 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1031 event pairs, 6 based on Foata normal form. 8/221 useless extension candidates. Maximal degree in co-relation 1283. Up to 171 conditions per place. [2021-03-26 04:43:20,580 INFO L132 encePairwiseOnDemand]: 35/42 looper letters, 69 selfloop transitions, 8 changer transitions 4/86 dead transitions. [2021-03-26 04:43:20,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 971 flow [2021-03-26 04:43:20,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:20,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2021-03-26 04:43:20,581 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38492063492063494 [2021-03-26 04:43:20,581 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 97 transitions. [2021-03-26 04:43:20,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 97 transitions. [2021-03-26 04:43:20,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:20,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 97 transitions. [2021-03-26 04:43:20,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 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) [2021-03-26 04:43:20,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 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) [2021-03-26 04:43:20,582 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 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) [2021-03-26 04:43:20,582 INFO L185 Difference]: Start difference. First operand has 87 places, 84 transitions, 779 flow. Second operand 6 states and 97 transitions. [2021-03-26 04:43:20,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 971 flow [2021-03-26 04:43:20,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 86 transitions, 951 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:20,591 INFO L241 Difference]: Finished difference. Result has 90 places, 82 transitions, 760 flow [2021-03-26 04:43:20,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2021-03-26 04:43:20,591 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 74 predicate places. [2021-03-26 04:43:20,591 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:20,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 82 transitions, 760 flow [2021-03-26 04:43:20,591 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 82 transitions, 760 flow [2021-03-26 04:43:20,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 760 flow [2021-03-26 04:43:20,609 INFO L129 PetriNetUnfolder]: 84/201 cut-off events. [2021-03-26 04:43:20,609 INFO L130 PetriNetUnfolder]: For 2113/2113 co-relation queries the response was YES. [2021-03-26 04:43:20,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 201 events. 84/201 cut-off events. For 2113/2113 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 958 event pairs, 5 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 1174. Up to 117 conditions per place. [2021-03-26 04:43:20,611 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 04:43:20,613 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:20,613 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:20,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 04:43:20,614 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 760 flow [2021-03-26 04:43:20,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 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) [2021-03-26 04:43:20,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:20,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:20,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-03-26 04:43:20,837 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:20,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:20,837 INFO L82 PathProgramCache]: Analyzing trace with hash -875311282, now seen corresponding path program 1 times [2021-03-26 04:43:20,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:20,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31096325] [2021-03-26 04:43:20,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:20,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:20,865 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-26 04:43:20,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:20,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:20,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:20,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:20,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31096325] [2021-03-26 04:43:20,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:20,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:20,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643931772] [2021-03-26 04:43:20,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:20,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:20,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:20,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:20,883 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2021-03-26 04:43:20,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 760 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) [2021-03-26 04:43:20,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:20,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2021-03-26 04:43:20,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:20,959 INFO L129 PetriNetUnfolder]: 87/213 cut-off events. [2021-03-26 04:43:20,959 INFO L130 PetriNetUnfolder]: For 1959/1967 co-relation queries the response was YES. [2021-03-26 04:43:20,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1382 conditions, 213 events. 87/213 cut-off events. For 1959/1967 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 993 event pairs, 6 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 1316. Up to 164 conditions per place. [2021-03-26 04:43:20,961 INFO L132 encePairwiseOnDemand]: 34/42 looper letters, 69 selfloop transitions, 11 changer transitions 0/85 dead transitions. [2021-03-26 04:43:20,962 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 976 flow [2021-03-26 04:43:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2021-03-26 04:43:20,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4087301587301587 [2021-03-26 04:43:20,963 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 103 transitions. [2021-03-26 04:43:20,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 103 transitions. [2021-03-26 04:43:20,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:20,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 103 transitions. [2021-03-26 04:43:20,964 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) [2021-03-26 04:43:20,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 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) [2021-03-26 04:43:20,964 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 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) [2021-03-26 04:43:20,964 INFO L185 Difference]: Start difference. First operand has 86 places, 82 transitions, 760 flow. Second operand 6 states and 103 transitions. [2021-03-26 04:43:20,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 976 flow [2021-03-26 04:43:20,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 85 transitions, 952 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:20,973 INFO L241 Difference]: Finished difference. Result has 88 places, 83 transitions, 788 flow [2021-03-26 04:43:20,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2021-03-26 04:43:20,973 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 72 predicate places. [2021-03-26 04:43:20,973 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:20,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 83 transitions, 788 flow [2021-03-26 04:43:20,974 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 83 transitions, 788 flow [2021-03-26 04:43:20,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 788 flow [2021-03-26 04:43:20,991 INFO L129 PetriNetUnfolder]: 86/206 cut-off events. [2021-03-26 04:43:20,991 INFO L130 PetriNetUnfolder]: For 2384/2384 co-relation queries the response was YES. [2021-03-26 04:43:20,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 206 events. 86/206 cut-off events. For 2384/2384 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 988 event pairs, 6 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 1235. Up to 121 conditions per place. [2021-03-26 04:43:20,993 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 04:43:20,996 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:20,996 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:20,996 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 04:43:20,996 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 788 flow [2021-03-26 04:43:20,996 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) [2021-03-26 04:43:20,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:20,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:20,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-26 04:43:20,996 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:20,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1745384946, now seen corresponding path program 2 times [2021-03-26 04:43:20,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:20,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477000103] [2021-03-26 04:43:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:21,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:21,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:43:21,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:21,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:21,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477000103] [2021-03-26 04:43:21,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:21,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:21,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437020852] [2021-03-26 04:43:21,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:21,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:21,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:21,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:21,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2021-03-26 04:43:21,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 788 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) [2021-03-26 04:43:21,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:21,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2021-03-26 04:43:21,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:21,132 INFO L129 PetriNetUnfolder]: 93/228 cut-off events. [2021-03-26 04:43:21,132 INFO L130 PetriNetUnfolder]: For 2675/2683 co-relation queries the response was YES. [2021-03-26 04:43:21,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 228 events. 93/228 cut-off events. For 2675/2683 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1094 event pairs, 7 based on Foata normal form. 5/231 useless extension candidates. Maximal degree in co-relation 1441. Up to 136 conditions per place. [2021-03-26 04:43:21,134 INFO L132 encePairwiseOnDemand]: 34/42 looper letters, 81 selfloop transitions, 8 changer transitions 1/95 dead transitions. [2021-03-26 04:43:21,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 95 transitions, 1147 flow [2021-03-26 04:43:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:43:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:43:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2021-03-26 04:43:21,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4380952380952381 [2021-03-26 04:43:21,135 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 92 transitions. [2021-03-26 04:43:21,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 92 transitions. [2021-03-26 04:43:21,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:21,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 92 transitions. [2021-03-26 04:43:21,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:21,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 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) [2021-03-26 04:43:21,136 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 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) [2021-03-26 04:43:21,136 INFO L185 Difference]: Start difference. First operand has 88 places, 83 transitions, 788 flow. Second operand 5 states and 92 transitions. [2021-03-26 04:43:21,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 95 transitions, 1147 flow [2021-03-26 04:43:21,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 95 transitions, 1111 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:21,147 INFO L241 Difference]: Finished difference. Result has 89 places, 84 transitions, 798 flow [2021-03-26 04:43:21,147 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=798, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2021-03-26 04:43:21,147 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 73 predicate places. [2021-03-26 04:43:21,147 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:21,147 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 84 transitions, 798 flow [2021-03-26 04:43:21,147 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 84 transitions, 798 flow [2021-03-26 04:43:21,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 84 transitions, 798 flow [2021-03-26 04:43:21,166 INFO L129 PetriNetUnfolder]: 92/218 cut-off events. [2021-03-26 04:43:21,166 INFO L130 PetriNetUnfolder]: For 3180/3184 co-relation queries the response was YES. [2021-03-26 04:43:21,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 218 events. 92/218 cut-off events. For 3180/3184 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1027 event pairs, 7 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 1364. Up to 132 conditions per place. [2021-03-26 04:43:21,168 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 04:43:21,170 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:21,171 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:21,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 04:43:21,171 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 798 flow [2021-03-26 04:43:21,171 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) [2021-03-26 04:43:21,171 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:21,171 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:21,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-26 04:43:21,171 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:21,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:21,172 INFO L82 PathProgramCache]: Analyzing trace with hash 388901876, now seen corresponding path program 1 times [2021-03-26 04:43:21,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:21,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966317669] [2021-03-26 04:43:21,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:21,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,194 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 04:43:21,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:21,199 INFO L142 QuantifierPusher]: treesize reduction 10, result has 89.6 percent of original size [2021-03-26 04:43:21,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 04:43:21,281 INFO L142 QuantifierPusher]: treesize reduction 1059, result has 22.2 percent of original size [2021-03-26 04:43:21,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-03-26 04:43:21,349 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:21,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:21,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:21,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:21,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966317669] [2021-03-26 04:43:21,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453402512] [2021-03-26 04:43:21,368 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 [2021-03-26 04:43:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:21,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 04:43:21,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:21,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:21,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:21,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:21,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,408 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:21,416 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,417 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:21,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:21,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:21,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:21,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:21,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:21,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:21,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:43:21,437 INFO L142 QuantifierPusher]: treesize reduction 107, result has 46.8 percent of original size [2021-03-26 04:43:21,438 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-26 04:43:21,439 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-26 04:43:21,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 04:43:21,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:21,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:43:21,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:21,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:43:21,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,486 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:21,487 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:21,487 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,488 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:21,488 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:21,489 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:21,490 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:21,491 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,492 INFO L142 QuantifierPusher]: treesize reduction 57, result has 55.8 percent of original size [2021-03-26 04:43:21,492 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:21,493 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,494 INFO L142 QuantifierPusher]: treesize reduction 45, result has 49.4 percent of original size [2021-03-26 04:43:21,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:21,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:21,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:21,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:21,528 INFO L142 QuantifierPusher]: treesize reduction 13, result has 89.0 percent of original size [2021-03-26 04:43:21,529 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:21,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 04:43:21,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 04:43:21,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 04:43:21,534 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-26 04:43:21,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,536 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:21,536 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:21,537 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,537 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,538 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-26 04:43:21,540 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:21,540 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,541 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-26 04:43:21,542 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:21,543 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,543 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,543 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-26 04:43:21,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:21,547 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 04:43:21,548 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:21,548 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:21,549 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 04:43:21,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:21,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:21,577 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:21,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:21,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:21,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:21,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,583 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:21,584 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:21,584 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,586 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:21,586 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:21,587 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:21,587 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:21,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:21,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:21,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:21,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475755279] [2021-03-26 04:43:21,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:21,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:21,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:21,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:21,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2021-03-26 04:43:21,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 798 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) [2021-03-26 04:43:21,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:21,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2021-03-26 04:43:21,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:21,960 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2021-03-26 04:43:22,266 INFO L129 PetriNetUnfolder]: 97/254 cut-off events. [2021-03-26 04:43:22,266 INFO L130 PetriNetUnfolder]: For 3305/3329 co-relation queries the response was YES. [2021-03-26 04:43:22,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1743 conditions, 254 events. 97/254 cut-off events. For 3305/3329 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1338 event pairs, 4 based on Foata normal form. 7/259 useless extension candidates. Maximal degree in co-relation 1662. Up to 178 conditions per place. [2021-03-26 04:43:22,269 INFO L132 encePairwiseOnDemand]: 33/42 looper letters, 82 selfloop transitions, 21 changer transitions 2/109 dead transitions. [2021-03-26 04:43:22,269 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 109 transitions, 1402 flow [2021-03-26 04:43:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 04:43:22,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 04:43:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 169 transitions. [2021-03-26 04:43:22,270 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3353174603174603 [2021-03-26 04:43:22,270 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 169 transitions. [2021-03-26 04:43:22,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 169 transitions. [2021-03-26 04:43:22,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:22,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 169 transitions. [2021-03-26 04:43:22,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 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) [2021-03-26 04:43:22,271 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) [2021-03-26 04:43:22,272 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) [2021-03-26 04:43:22,272 INFO L185 Difference]: Start difference. First operand has 89 places, 84 transitions, 798 flow. Second operand 12 states and 169 transitions. [2021-03-26 04:43:22,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 109 transitions, 1402 flow [2021-03-26 04:43:22,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 109 transitions, 1376 flow, removed 9 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:22,283 INFO L241 Difference]: Finished difference. Result has 104 places, 99 transitions, 1133 flow [2021-03-26 04:43:22,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1133, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2021-03-26 04:43:22,283 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 88 predicate places. [2021-03-26 04:43:22,283 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:22,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 99 transitions, 1133 flow [2021-03-26 04:43:22,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 99 transitions, 1133 flow [2021-03-26 04:43:22,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 1133 flow [2021-03-26 04:43:22,307 INFO L129 PetriNetUnfolder]: 90/239 cut-off events. [2021-03-26 04:43:22,307 INFO L130 PetriNetUnfolder]: For 3567/3594 co-relation queries the response was YES. [2021-03-26 04:43:22,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 239 events. 90/239 cut-off events. For 3567/3594 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1251 event pairs, 7 based on Foata normal form. 2/239 useless extension candidates. Maximal degree in co-relation 1527. Up to 135 conditions per place. [2021-03-26 04:43:22,309 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 04:43:22,739 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:22,739 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 04:43:22,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 456 [2021-03-26 04:43:22,740 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 1146 flow [2021-03-26 04:43:22,740 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) [2021-03-26 04:43:22,740 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:22,740 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:22,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:22,956 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1691381374, now seen corresponding path program 2 times [2021-03-26 04:43:22,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:22,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271385440] [2021-03-26 04:43:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:22,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:22,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:22,997 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-26 04:43:22,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:23,003 INFO L142 QuantifierPusher]: treesize reduction 201, result has 17.3 percent of original size [2021-03-26 04:43:23,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:43:23,022 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 04:43:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:23,035 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:23,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:23,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:23,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:23,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271385440] [2021-03-26 04:43:23,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862592202] [2021-03-26 04:43:23,054 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 [2021-03-26 04:43:23,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:23,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:23,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 25 conjunts are in the unsatisfiable core [2021-03-26 04:43:23,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:23,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:23,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:23,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:23,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:23,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:23,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,103 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:23,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,105 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:23,106 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,106 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,106 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:23,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:23,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:23,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 04:43:23,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:23,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 04:43:23,129 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 04:43:23,130 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 04:43:23,131 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 04:43:23,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:43:23,275 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-03-26 04:43:23,276 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-26 04:43:23,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:23,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 04:43:23,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 04:43:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 04:43:23,281 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-26 04:43:23,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,282 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:23,283 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:23,283 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,285 INFO L142 QuantifierPusher]: treesize reduction 240, result has 36.7 percent of original size [2021-03-26 04:43:23,286 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:23,287 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,288 INFO L142 QuantifierPusher]: treesize reduction 81, result has 61.2 percent of original size [2021-03-26 04:43:23,289 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:23,289 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,290 INFO L142 QuantifierPusher]: treesize reduction 127, result has 27.0 percent of original size [2021-03-26 04:43:23,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:23,294 INFO L147 QuantifierPusher]: treesize reduction 11, result has 72.5 percent of original size 29 [2021-03-26 04:43:23,295 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 04:43:23,295 INFO L147 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size 48 [2021-03-26 04:43:23,296 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.4 percent of original size [2021-03-26 04:43:23,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:23,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:43:23,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:23,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:23,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:43:23,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,334 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 04:43:23,335 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:23,335 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,336 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:43:23,337 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:23,337 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,337 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,338 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 04:43:23,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:23,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:23,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:23,359 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:23,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:23,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:23,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:23,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:23,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:23,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,364 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:23,365 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:23,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,366 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:23,366 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:23,367 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:23,368 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:43:23,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:23,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:23,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:23,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:23,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830607111] [2021-03-26 04:43:23,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:23,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:23,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:23,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:23,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2021-03-26 04:43:23,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 1146 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) [2021-03-26 04:43:23,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:23,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2021-03-26 04:43:23,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:23,803 INFO L129 PetriNetUnfolder]: 100/265 cut-off events. [2021-03-26 04:43:23,803 INFO L130 PetriNetUnfolder]: For 4290/4318 co-relation queries the response was YES. [2021-03-26 04:43:23,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 265 events. 100/265 cut-off events. For 4290/4318 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1408 event pairs, 3 based on Foata normal form. 12/275 useless extension candidates. Maximal degree in co-relation 1902. Up to 179 conditions per place. [2021-03-26 04:43:23,805 INFO L132 encePairwiseOnDemand]: 34/45 looper letters, 82 selfloop transitions, 24 changer transitions 4/114 dead transitions. [2021-03-26 04:43:23,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 1656 flow [2021-03-26 04:43:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 04:43:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 04:43:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 176 transitions. [2021-03-26 04:43:23,806 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32592592592592595 [2021-03-26 04:43:23,806 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 176 transitions. [2021-03-26 04:43:23,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 176 transitions. [2021-03-26 04:43:23,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:23,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 176 transitions. [2021-03-26 04:43:23,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 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) [2021-03-26 04:43:23,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:23,808 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 45.0) internal successors, (585), 13 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:23,808 INFO L185 Difference]: Start difference. First operand has 102 places, 98 transitions, 1146 flow. Second operand 12 states and 176 transitions. [2021-03-26 04:43:23,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 1656 flow [2021-03-26 04:43:23,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 114 transitions, 1494 flow, removed 81 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:23,823 INFO L241 Difference]: Finished difference. Result has 115 places, 101 transitions, 1153 flow [2021-03-26 04:43:23,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1153, PETRI_PLACES=115, PETRI_TRANSITIONS=101} [2021-03-26 04:43:23,823 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 99 predicate places. [2021-03-26 04:43:23,823 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:23,823 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 101 transitions, 1153 flow [2021-03-26 04:43:23,823 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 101 transitions, 1153 flow [2021-03-26 04:43:23,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 101 transitions, 1153 flow [2021-03-26 04:43:23,848 INFO L129 PetriNetUnfolder]: 102/256 cut-off events. [2021-03-26 04:43:23,848 INFO L130 PetriNetUnfolder]: For 5419/5423 co-relation queries the response was YES. [2021-03-26 04:43:23,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 256 events. 102/256 cut-off events. For 5419/5423 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1327 event pairs, 6 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 1851. Up to 148 conditions per place. [2021-03-26 04:43:23,851 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 04:43:24,246 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:24,246 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:24,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 423 [2021-03-26 04:43:24,247 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 101 transitions, 1172 flow [2021-03-26 04:43:24,247 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) [2021-03-26 04:43:24,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:24,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:24,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-03-26 04:43:24,460 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash -362125320, now seen corresponding path program 1 times [2021-03-26 04:43:24,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:24,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773367401] [2021-03-26 04:43:24,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:24,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:43:24,482 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 04:43:24,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:24,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:24,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773367401] [2021-03-26 04:43:24,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:24,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:24,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225212190] [2021-03-26 04:43:24,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:24,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:24,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:24,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:24,491 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2021-03-26 04:43:24,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 101 transitions, 1172 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) [2021-03-26 04:43:24,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:24,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2021-03-26 04:43:24,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:24,568 INFO L129 PetriNetUnfolder]: 97/253 cut-off events. [2021-03-26 04:43:24,568 INFO L130 PetriNetUnfolder]: For 4484/4492 co-relation queries the response was YES. [2021-03-26 04:43:24,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1946 conditions, 253 events. 97/253 cut-off events. For 4484/4492 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1322 event pairs, 6 based on Foata normal form. 2/254 useless extension candidates. Maximal degree in co-relation 1853. Up to 153 conditions per place. [2021-03-26 04:43:24,571 INFO L132 encePairwiseOnDemand]: 40/47 looper letters, 77 selfloop transitions, 10 changer transitions 1/102 dead transitions. [2021-03-26 04:43:24,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 102 transitions, 1365 flow [2021-03-26 04:43:24,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:24,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2021-03-26 04:43:24,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46808510638297873 [2021-03-26 04:43:24,572 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 88 transitions. [2021-03-26 04:43:24,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 88 transitions. [2021-03-26 04:43:24,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:24,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 88 transitions. [2021-03-26 04:43:24,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:24,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:24,573 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:24,573 INFO L185 Difference]: Start difference. First operand has 112 places, 101 transitions, 1172 flow. Second operand 4 states and 88 transitions. [2021-03-26 04:43:24,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 102 transitions, 1365 flow [2021-03-26 04:43:24,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 102 transitions, 1272 flow, removed 39 selfloop flow, removed 5 redundant places. [2021-03-26 04:43:24,591 INFO L241 Difference]: Finished difference. Result has 110 places, 99 transitions, 1064 flow [2021-03-26 04:43:24,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1064, PETRI_PLACES=110, PETRI_TRANSITIONS=99} [2021-03-26 04:43:24,591 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 94 predicate places. [2021-03-26 04:43:24,591 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:24,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 99 transitions, 1064 flow [2021-03-26 04:43:24,592 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 99 transitions, 1064 flow [2021-03-26 04:43:24,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 99 transitions, 1064 flow [2021-03-26 04:43:24,614 INFO L129 PetriNetUnfolder]: 92/243 cut-off events. [2021-03-26 04:43:24,614 INFO L130 PetriNetUnfolder]: For 4124/4153 co-relation queries the response was YES. [2021-03-26 04:43:24,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 243 events. 92/243 cut-off events. For 4124/4153 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1268 event pairs, 9 based on Foata normal form. 2/243 useless extension candidates. Maximal degree in co-relation 1602. Up to 134 conditions per place. [2021-03-26 04:43:24,617 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 04:43:24,619 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:24,620 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:24,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 04:43:24,620 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 99 transitions, 1064 flow [2021-03-26 04:43:24,620 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) [2021-03-26 04:43:24,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:24,620 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:24,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-26 04:43:24,620 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:24,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:24,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1920219572, now seen corresponding path program 1 times [2021-03-26 04:43:24,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:24,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046169599] [2021-03-26 04:43:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:24,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,637 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 04:43:24,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:24,643 INFO L142 QuantifierPusher]: treesize reduction 43, result has 32.8 percent of original size [2021-03-26 04:43:24,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:24,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:24,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:24,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046169599] [2021-03-26 04:43:24,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603945018] [2021-03-26 04:43:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:24,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 04:43:24,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:24,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:24,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:24,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:24,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,711 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:24,712 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:24,712 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:24,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:24,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:43:24,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:43:24,728 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 04:43:24,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:24,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:24,745 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 04:43:24,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:43:24,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,748 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:24,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:24,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 04:43:24,752 INFO L142 QuantifierPusher]: treesize reduction 99, result has 16.8 percent of original size [2021-03-26 04:43:24,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:24,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:24,755 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:24,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:24,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:24,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:24,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 04:43:24,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402380495] [2021-03-26 04:43:24,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:24,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:24,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:24,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:43:24,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2021-03-26 04:43:24,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 99 transitions, 1064 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) [2021-03-26 04:43:24,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:24,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2021-03-26 04:43:24,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:24,870 INFO L129 PetriNetUnfolder]: 101/259 cut-off events. [2021-03-26 04:43:24,870 INFO L130 PetriNetUnfolder]: For 4833/4860 co-relation queries the response was YES. [2021-03-26 04:43:24,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 259 events. 101/259 cut-off events. For 4833/4860 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1322 event pairs, 6 based on Foata normal form. 11/270 useless extension candidates. Maximal degree in co-relation 1853. Up to 153 conditions per place. [2021-03-26 04:43:24,873 INFO L132 encePairwiseOnDemand]: 41/47 looper letters, 79 selfloop transitions, 13 changer transitions 0/106 dead transitions. [2021-03-26 04:43:24,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 106 transitions, 1380 flow [2021-03-26 04:43:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2021-03-26 04:43:24,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42907801418439717 [2021-03-26 04:43:24,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 121 transitions. [2021-03-26 04:43:24,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 121 transitions. [2021-03-26 04:43:24,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:24,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 121 transitions. [2021-03-26 04:43:24,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 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) [2021-03-26 04:43:24,875 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) [2021-03-26 04:43:24,875 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) [2021-03-26 04:43:24,875 INFO L185 Difference]: Start difference. First operand has 109 places, 99 transitions, 1064 flow. Second operand 6 states and 121 transitions. [2021-03-26 04:43:24,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 106 transitions, 1380 flow [2021-03-26 04:43:24,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 106 transitions, 1361 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:24,890 INFO L241 Difference]: Finished difference. Result has 113 places, 101 transitions, 1103 flow [2021-03-26 04:43:24,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1045, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1103, PETRI_PLACES=113, PETRI_TRANSITIONS=101} [2021-03-26 04:43:24,891 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 97 predicate places. [2021-03-26 04:43:24,891 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:24,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 101 transitions, 1103 flow [2021-03-26 04:43:24,891 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 101 transitions, 1103 flow [2021-03-26 04:43:24,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 101 transitions, 1103 flow [2021-03-26 04:43:24,916 INFO L129 PetriNetUnfolder]: 105/261 cut-off events. [2021-03-26 04:43:24,916 INFO L130 PetriNetUnfolder]: For 5266/5272 co-relation queries the response was YES. [2021-03-26 04:43:24,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1930 conditions, 261 events. 105/261 cut-off events. For 5266/5272 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1357 event pairs, 9 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 1869. Up to 153 conditions per place. [2021-03-26 04:43:24,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 04:43:24,921 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:24,922 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:24,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 04:43:24,922 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 101 transitions, 1103 flow [2021-03-26 04:43:24,922 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) [2021-03-26 04:43:24,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:24,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:25,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:25,144 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:25,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:25,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1487049033, now seen corresponding path program 1 times [2021-03-26 04:43:25,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:25,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477212242] [2021-03-26 04:43:25,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:25,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,170 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 04:43:25,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:43:25,179 INFO L142 QuantifierPusher]: treesize reduction 128, result has 16.3 percent of original size [2021-03-26 04:43:25,179 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-26 04:43:25,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:25,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:25,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477212242] [2021-03-26 04:43:25,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:25,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:25,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870518412] [2021-03-26 04:43:25,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:25,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:25,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:25,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:25,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2021-03-26 04:43:25,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 101 transitions, 1103 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) [2021-03-26 04:43:25,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:25,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2021-03-26 04:43:25,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:25,327 INFO L129 PetriNetUnfolder]: 107/271 cut-off events. [2021-03-26 04:43:25,327 INFO L130 PetriNetUnfolder]: For 5030/5038 co-relation queries the response was YES. [2021-03-26 04:43:25,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2125 conditions, 271 events. 107/271 cut-off events. For 5030/5038 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1419 event pairs, 5 based on Foata normal form. 3/272 useless extension candidates. Maximal degree in co-relation 2034. Up to 191 conditions per place. [2021-03-26 04:43:25,330 INFO L132 encePairwiseOnDemand]: 39/47 looper letters, 88 selfloop transitions, 15 changer transitions 0/109 dead transitions. [2021-03-26 04:43:25,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 109 transitions, 1457 flow [2021-03-26 04:43:25,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:25,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2021-03-26 04:43:25,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2021-03-26 04:43:25,331 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 108 transitions. [2021-03-26 04:43:25,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 108 transitions. [2021-03-26 04:43:25,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:25,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 108 transitions. [2021-03-26 04:43:25,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:25,334 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) [2021-03-26 04:43:25,334 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) [2021-03-26 04:43:25,334 INFO L185 Difference]: Start difference. First operand has 113 places, 101 transitions, 1103 flow. Second operand 6 states and 108 transitions. [2021-03-26 04:43:25,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 109 transitions, 1457 flow [2021-03-26 04:43:25,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 109 transitions, 1432 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:25,350 INFO L241 Difference]: Finished difference. Result has 116 places, 102 transitions, 1146 flow [2021-03-26 04:43:25,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=116, PETRI_TRANSITIONS=102} [2021-03-26 04:43:25,351 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 100 predicate places. [2021-03-26 04:43:25,351 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:25,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 102 transitions, 1146 flow [2021-03-26 04:43:25,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 102 transitions, 1146 flow [2021-03-26 04:43:25,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 102 transitions, 1146 flow [2021-03-26 04:43:25,376 INFO L129 PetriNetUnfolder]: 100/261 cut-off events. [2021-03-26 04:43:25,376 INFO L130 PetriNetUnfolder]: For 5422/5451 co-relation queries the response was YES. [2021-03-26 04:43:25,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1899 conditions, 261 events. 100/261 cut-off events. For 5422/5451 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1382 event pairs, 10 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 1837. Up to 149 conditions per place. [2021-03-26 04:43:25,378 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 04:43:25,381 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:25,381 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:25,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 04:43:25,381 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 102 transitions, 1146 flow [2021-03-26 04:43:25,381 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) [2021-03-26 04:43:25,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:25,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:25,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-26 04:43:25,382 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:25,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:25,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1374721143, now seen corresponding path program 1 times [2021-03-26 04:43:25,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:25,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365327295] [2021-03-26 04:43:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:25,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:25,412 INFO L142 QuantifierPusher]: treesize reduction 458, result has 20.1 percent of original size [2021-03-26 04:43:25,413 INFO L147 QuantifierPusher]: treesize reduction 39, result has 66.1 percent of original size 76 [2021-03-26 04:43:25,461 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-03-26 04:43:25,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:25,477 INFO L142 QuantifierPusher]: treesize reduction -1, result has 112.5 percent of original size [2021-03-26 04:43:25,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:25,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:25,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365327295] [2021-03-26 04:43:25,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748818097] [2021-03-26 04:43:25,493 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 [2021-03-26 04:43:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:25,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:43:25,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:25,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:25,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:25,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:25,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,528 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:25,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:25,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,530 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:25,530 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:25,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,531 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:25,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-26 04:43:25,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,533 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:25,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-03-26 04:43:25,535 INFO L142 QuantifierPusher]: treesize reduction 265, result has 33.1 percent of original size [2021-03-26 04:43:25,535 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size 118 [2021-03-26 04:43:25,536 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.7 percent of original size [2021-03-26 04:43:25,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 118 [2021-03-26 04:43:25,637 INFO L142 QuantifierPusher]: treesize reduction 7, result has 95.2 percent of original size [2021-03-26 04:43:25,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:25,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 04:43:25,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-03-26 04:43:25,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-26 04:43:25,650 INFO L142 QuantifierPusher]: treesize reduction 23, result has 88.2 percent of original size [2021-03-26 04:43:25,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,651 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:25,652 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:25,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,653 INFO L142 QuantifierPusher]: treesize reduction 188, result has 37.5 percent of original size [2021-03-26 04:43:25,653 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:25,654 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,655 INFO L142 QuantifierPusher]: treesize reduction 108, result has 29.9 percent of original size [2021-03-26 04:43:25,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:25,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:25,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:25,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:25,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:43:25,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:25,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:43:25,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,698 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 04:43:25,698 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:25,699 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,704 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-03-26 04:43:25,704 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-03-26 04:43:25,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:25,736 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:25,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:25,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:25,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:25,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:25,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:25,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,745 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:25,745 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:25,745 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,747 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:25,748 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:25,749 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:25,750 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:25,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:25,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:25,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:25,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:25,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:25,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414042610] [2021-03-26 04:43:25,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:25,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:25,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:25,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:25,775 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2021-03-26 04:43:25,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 102 transitions, 1146 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) [2021-03-26 04:43:25,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:25,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2021-03-26 04:43:25,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:26,231 INFO L129 PetriNetUnfolder]: 122/320 cut-off events. [2021-03-26 04:43:26,231 INFO L130 PetriNetUnfolder]: For 7658/7686 co-relation queries the response was YES. [2021-03-26 04:43:26,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2639 conditions, 320 events. 122/320 cut-off events. For 7658/7686 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1774 event pairs, 11 based on Foata normal form. 6/324 useless extension candidates. Maximal degree in co-relation 2572. Up to 222 conditions per place. [2021-03-26 04:43:26,234 INFO L132 encePairwiseOnDemand]: 39/47 looper letters, 106 selfloop transitions, 20 changer transitions 7/137 dead transitions. [2021-03-26 04:43:26,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 137 transitions, 1971 flow [2021-03-26 04:43:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:43:26,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:43:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2021-03-26 04:43:26,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3309692671394799 [2021-03-26 04:43:26,235 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 140 transitions. [2021-03-26 04:43:26,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 140 transitions. [2021-03-26 04:43:26,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:26,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 140 transitions. [2021-03-26 04:43:26,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:26,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 47.0) internal successors, (470), 10 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:26,236 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 47.0) internal successors, (470), 10 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:26,236 INFO L185 Difference]: Start difference. First operand has 116 places, 102 transitions, 1146 flow. Second operand 9 states and 140 transitions. [2021-03-26 04:43:26,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 137 transitions, 1971 flow [2021-03-26 04:43:26,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 137 transitions, 1907 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:26,257 INFO L241 Difference]: Finished difference. Result has 124 places, 118 transitions, 1423 flow [2021-03-26 04:43:26,258 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1423, PETRI_PLACES=124, PETRI_TRANSITIONS=118} [2021-03-26 04:43:26,258 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 108 predicate places. [2021-03-26 04:43:26,258 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:26,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 118 transitions, 1423 flow [2021-03-26 04:43:26,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 118 transitions, 1423 flow [2021-03-26 04:43:26,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 118 transitions, 1423 flow [2021-03-26 04:43:26,289 INFO L129 PetriNetUnfolder]: 117/306 cut-off events. [2021-03-26 04:43:26,289 INFO L130 PetriNetUnfolder]: For 7515/7544 co-relation queries the response was YES. [2021-03-26 04:43:26,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 306 events. 117/306 cut-off events. For 7515/7544 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1726 event pairs, 13 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 2311. Up to 178 conditions per place. [2021-03-26 04:43:26,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 04:43:26,295 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:26,295 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:26,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 04:43:26,296 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 1423 flow [2021-03-26 04:43:26,296 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) [2021-03-26 04:43:26,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:26,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:26,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-03-26 04:43:26,512 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -397249885, now seen corresponding path program 2 times [2021-03-26 04:43:26,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:26,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244481999] [2021-03-26 04:43:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:26,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:26,539 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.5 percent of original size [2021-03-26 04:43:26,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:26,558 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size [2021-03-26 04:43:26,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:26,573 INFO L142 QuantifierPusher]: treesize reduction -1, result has 112.5 percent of original size [2021-03-26 04:43:26,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:26,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244481999] [2021-03-26 04:43:26,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105470593] [2021-03-26 04:43:26,588 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 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 [2021-03-26 04:43:26,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:26,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:26,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:43:26,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:26,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:26,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:26,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:26,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,640 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:26,640 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:26,641 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-26 04:43:26,641 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:26,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:26,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,643 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:26,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 04:43:26,645 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 04:43:26,646 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 04:43:26,647 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 04:43:26,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:43:26,714 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.0 percent of original size [2021-03-26 04:43:26,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:26,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:26,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,716 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:26,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:26,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:43:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,720 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:26,720 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:26,721 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,721 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:26,721 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:26,721 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:26,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,734 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:26,734 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,740 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 04:43:26,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:43:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:43:26,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:26,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:26,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:43:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-03-26 04:43:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-26 04:43:26,755 INFO L142 QuantifierPusher]: treesize reduction 158, result has 43.0 percent of original size [2021-03-26 04:43:26,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,758 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:26,758 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:26,759 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,760 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.1 percent of original size [2021-03-26 04:43:26,760 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:26,761 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,762 INFO L142 QuantifierPusher]: treesize reduction 70, result has 49.6 percent of original size [2021-03-26 04:43:26,763 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:26,763 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,764 INFO L142 QuantifierPusher]: treesize reduction 33, result has 29.8 percent of original size [2021-03-26 04:43:26,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:26,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:43:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 04:43:26,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:26,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:43:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:26,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:26,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:43:26,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498539267] [2021-03-26 04:43:26,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 04:43:26,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:26,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 04:43:26,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-03-26 04:43:26,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2021-03-26 04:43:26,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 1423 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) [2021-03-26 04:43:26,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:26,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2021-03-26 04:43:26,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:27,113 INFO L129 PetriNetUnfolder]: 142/380 cut-off events. [2021-03-26 04:43:27,113 INFO L130 PetriNetUnfolder]: For 10506/10534 co-relation queries the response was YES. [2021-03-26 04:43:27,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 380 events. 142/380 cut-off events. For 10506/10534 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2216 event pairs, 10 based on Foata normal form. 2/380 useless extension candidates. Maximal degree in co-relation 3269. Up to 221 conditions per place. [2021-03-26 04:43:27,118 INFO L132 encePairwiseOnDemand]: 37/47 looper letters, 122 selfloop transitions, 25 changer transitions 2/153 dead transitions. [2021-03-26 04:43:27,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 153 transitions, 2305 flow [2021-03-26 04:43:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:27,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 101 transitions. [2021-03-26 04:43:27,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.35815602836879434 [2021-03-26 04:43:27,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 101 transitions. [2021-03-26 04:43:27,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 101 transitions. [2021-03-26 04:43:27,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:27,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 101 transitions. [2021-03-26 04:43:27,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 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) [2021-03-26 04:43:27,120 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) [2021-03-26 04:43:27,120 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) [2021-03-26 04:43:27,120 INFO L185 Difference]: Start difference. First operand has 123 places, 118 transitions, 1423 flow. Second operand 6 states and 101 transitions. [2021-03-26 04:43:27,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 153 transitions, 2305 flow [2021-03-26 04:43:27,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 153 transitions, 2174 flow, removed 64 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:27,151 INFO L241 Difference]: Finished difference. Result has 129 places, 122 transitions, 1520 flow [2021-03-26 04:43:27,152 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1520, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2021-03-26 04:43:27,152 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 113 predicate places. [2021-03-26 04:43:27,152 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:27,152 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 122 transitions, 1520 flow [2021-03-26 04:43:27,152 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 122 transitions, 1520 flow [2021-03-26 04:43:27,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 122 transitions, 1520 flow [2021-03-26 04:43:27,183 INFO L129 PetriNetUnfolder]: 138/374 cut-off events. [2021-03-26 04:43:27,184 INFO L130 PetriNetUnfolder]: For 10174/10186 co-relation queries the response was YES. [2021-03-26 04:43:27,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2986 conditions, 374 events. 138/374 cut-off events. For 10174/10186 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2257 event pairs, 18 based on Foata normal form. 8/382 useless extension candidates. Maximal degree in co-relation 2883. Up to 216 conditions per place. [2021-03-26 04:43:27,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-26 04:43:27,327 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:27,327 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:27,327 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 175 [2021-03-26 04:43:27,328 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 1528 flow [2021-03-26 04:43:27,328 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) [2021-03-26 04:43:27,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:27,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:27,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:27,548 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:27,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:27,548 INFO L82 PathProgramCache]: Analyzing trace with hash -340944895, now seen corresponding path program 3 times [2021-03-26 04:43:27,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:27,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941896935] [2021-03-26 04:43:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:27,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:27,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:27,611 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 04:43:27,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:43:27,628 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:27,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:27,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:27,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:27,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941896935] [2021-03-26 04:43:27,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657021152] [2021-03-26 04:43:27,644 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 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 [2021-03-26 04:43:27,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:43:27,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:27,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 04:43:27,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:27,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:27,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,685 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:27,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:27,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,687 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:27,687 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:27,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:27,688 INFO L142 QuantifierPusher]: treesize reduction 7, result has 89.6 percent of original size [2021-03-26 04:43:27,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:27,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:27,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,692 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 04:43:27,694 INFO L142 QuantifierPusher]: treesize reduction 46, result has 73.1 percent of original size [2021-03-26 04:43:27,695 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 04:43:27,695 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 04:43:27,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:43:27,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:27,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 04:43:27,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,794 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 04:43:27,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 04:43:27,798 INFO L142 QuantifierPusher]: treesize reduction 265, result has 44.8 percent of original size [2021-03-26 04:43:27,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,802 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:27,803 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:27,803 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,805 INFO L142 QuantifierPusher]: treesize reduction 238, result has 36.9 percent of original size [2021-03-26 04:43:27,806 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:27,806 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,806 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,807 INFO L142 QuantifierPusher]: treesize reduction 148, result has 26.0 percent of original size [2021-03-26 04:43:27,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:27,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:27,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:27,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:43:27,844 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:43:27,844 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:27,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:27,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:27,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:27,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:43:27,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,849 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 04:43:27,849 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:27,850 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,851 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:43:27,851 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:27,852 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,852 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,853 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 04:43:27,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:27,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:27,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:27,873 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:27,873 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:27,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:27,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,875 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:27,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:27,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:27,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,878 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:27,878 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:27,878 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,879 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:27,879 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:27,887 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:27,888 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:43:27,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:27,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:27,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 04:43:27,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2021-03-26 04:43:27,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208523437] [2021-03-26 04:43:27,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:27,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:27,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:27,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:27,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2021-03-26 04:43:27,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 1528 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) [2021-03-26 04:43:27,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:27,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2021-03-26 04:43:27,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:28,303 INFO L129 PetriNetUnfolder]: 140/374 cut-off events. [2021-03-26 04:43:28,303 INFO L130 PetriNetUnfolder]: For 10475/10507 co-relation queries the response was YES. [2021-03-26 04:43:28,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 374 events. 140/374 cut-off events. For 10475/10507 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2181 event pairs, 11 based on Foata normal form. 3/377 useless extension candidates. Maximal degree in co-relation 3192. Up to 218 conditions per place. [2021-03-26 04:43:28,307 INFO L132 encePairwiseOnDemand]: 36/48 looper letters, 117 selfloop transitions, 26 changer transitions 5/152 dead transitions. [2021-03-26 04:43:28,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 152 transitions, 2297 flow [2021-03-26 04:43:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:43:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:43:28,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2021-03-26 04:43:28,308 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3482142857142857 [2021-03-26 04:43:28,309 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 117 transitions. [2021-03-26 04:43:28,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 117 transitions. [2021-03-26 04:43:28,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:28,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 117 transitions. [2021-03-26 04:43:28,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 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) [2021-03-26 04:43:28,310 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) [2021-03-26 04:43:28,310 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) [2021-03-26 04:43:28,310 INFO L185 Difference]: Start difference. First operand has 128 places, 122 transitions, 1528 flow. Second operand 7 states and 117 transitions. [2021-03-26 04:43:28,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 152 transitions, 2297 flow [2021-03-26 04:43:28,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 152 transitions, 2182 flow, removed 47 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:28,346 INFO L241 Difference]: Finished difference. Result has 134 places, 123 transitions, 1542 flow [2021-03-26 04:43:28,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1542, PETRI_PLACES=134, PETRI_TRANSITIONS=123} [2021-03-26 04:43:28,346 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 118 predicate places. [2021-03-26 04:43:28,346 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:28,346 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 123 transitions, 1542 flow [2021-03-26 04:43:28,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 123 transitions, 1542 flow [2021-03-26 04:43:28,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 123 transitions, 1542 flow [2021-03-26 04:43:28,383 INFO L129 PetriNetUnfolder]: 135/362 cut-off events. [2021-03-26 04:43:28,383 INFO L130 PetriNetUnfolder]: For 8119/8160 co-relation queries the response was YES. [2021-03-26 04:43:28,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2821 conditions, 362 events. 135/362 cut-off events. For 8119/8160 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2126 event pairs, 17 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 2715. Up to 212 conditions per place. [2021-03-26 04:43:28,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 04:43:28,595 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:28,595 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:28,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 249 [2021-03-26 04:43:28,595 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 123 transitions, 1551 flow [2021-03-26 04:43:28,595 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) [2021-03-26 04:43:28,595 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:28,595 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:28,799 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-03-26 04:43:28,800 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1147123556, now seen corresponding path program 1 times [2021-03-26 04:43:28,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:28,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3752901] [2021-03-26 04:43:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:28,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:28,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:28,841 INFO L142 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size [2021-03-26 04:43:28,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:28,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:28,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3752901] [2021-03-26 04:43:28,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:28,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:28,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702686598] [2021-03-26 04:43:28,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:28,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:28,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:28,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:28,848 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2021-03-26 04:43:28,848 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 123 transitions, 1551 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) [2021-03-26 04:43:28,848 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:28,848 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2021-03-26 04:43:28,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:28,973 INFO L129 PetriNetUnfolder]: 165/433 cut-off events. [2021-03-26 04:43:28,973 INFO L130 PetriNetUnfolder]: For 11199/11231 co-relation queries the response was YES. [2021-03-26 04:43:28,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3883 conditions, 433 events. 165/433 cut-off events. For 11199/11231 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2568 event pairs, 27 based on Foata normal form. 2/435 useless extension candidates. Maximal degree in co-relation 3769. Up to 260 conditions per place. [2021-03-26 04:43:28,976 INFO L132 encePairwiseOnDemand]: 32/49 looper letters, 118 selfloop transitions, 25 changer transitions 1/150 dead transitions. [2021-03-26 04:43:28,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 150 transitions, 2417 flow [2021-03-26 04:43:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:43:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:43:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2021-03-26 04:43:28,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.40408163265306124 [2021-03-26 04:43:28,977 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 99 transitions. [2021-03-26 04:43:28,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 99 transitions. [2021-03-26 04:43:28,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:28,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 99 transitions. [2021-03-26 04:43:28,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:28,978 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) [2021-03-26 04:43:28,978 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) [2021-03-26 04:43:28,978 INFO L185 Difference]: Start difference. First operand has 133 places, 123 transitions, 1551 flow. Second operand 5 states and 99 transitions. [2021-03-26 04:43:28,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 150 transitions, 2417 flow [2021-03-26 04:43:29,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 150 transitions, 2326 flow, removed 21 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:29,006 INFO L241 Difference]: Finished difference. Result has 135 places, 125 transitions, 1581 flow [2021-03-26 04:43:29,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1470, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1581, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2021-03-26 04:43:29,007 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 119 predicate places. [2021-03-26 04:43:29,007 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:29,007 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 125 transitions, 1581 flow [2021-03-26 04:43:29,007 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 125 transitions, 1581 flow [2021-03-26 04:43:29,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 125 transitions, 1581 flow [2021-03-26 04:43:29,045 INFO L129 PetriNetUnfolder]: 161/423 cut-off events. [2021-03-26 04:43:29,045 INFO L130 PetriNetUnfolder]: For 10361/10402 co-relation queries the response was YES. [2021-03-26 04:43:29,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3441 conditions, 423 events. 161/423 cut-off events. For 10361/10402 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2574 event pairs, 26 based on Foata normal form. 1/419 useless extension candidates. Maximal degree in co-relation 3365. Up to 253 conditions per place. [2021-03-26 04:43:29,048 INFO L142 LiptonReduction]: Number of co-enabled transitions 78 [2021-03-26 04:43:29,051 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:29,051 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:29,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-26 04:43:29,051 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 1581 flow [2021-03-26 04:43:29,052 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) [2021-03-26 04:43:29,052 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:29,052 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:29,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-26 04:43:29,052 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:29,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:29,052 INFO L82 PathProgramCache]: Analyzing trace with hash -444521356, now seen corresponding path program 1 times [2021-03-26 04:43:29,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:29,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966517360] [2021-03-26 04:43:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:29,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:29,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:29,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:29,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966517360] [2021-03-26 04:43:29,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:29,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 04:43:29,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044362879] [2021-03-26 04:43:29,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 04:43:29,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:29,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 04:43:29,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 04:43:29,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2021-03-26 04:43:29,078 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 1581 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) [2021-03-26 04:43:29,078 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:29,078 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2021-03-26 04:43:29,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:29,172 INFO L129 PetriNetUnfolder]: 156/407 cut-off events. [2021-03-26 04:43:29,172 INFO L130 PetriNetUnfolder]: For 11073/11117 co-relation queries the response was YES. [2021-03-26 04:43:29,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3603 conditions, 407 events. 156/407 cut-off events. For 11073/11117 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2358 event pairs, 22 based on Foata normal form. 6/409 useless extension candidates. Maximal degree in co-relation 3522. Up to 243 conditions per place. [2021-03-26 04:43:29,177 INFO L132 encePairwiseOnDemand]: 42/49 looper letters, 102 selfloop transitions, 14 changer transitions 0/133 dead transitions. [2021-03-26 04:43:29,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 133 transitions, 1956 flow [2021-03-26 04:43:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 04:43:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 04:43:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2021-03-26 04:43:29,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45918367346938777 [2021-03-26 04:43:29,179 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 90 transitions. [2021-03-26 04:43:29,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 90 transitions. [2021-03-26 04:43:29,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:29,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 90 transitions. [2021-03-26 04:43:29,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:29,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 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) [2021-03-26 04:43:29,181 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 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) [2021-03-26 04:43:29,181 INFO L185 Difference]: Start difference. First operand has 135 places, 125 transitions, 1581 flow. Second operand 4 states and 90 transitions. [2021-03-26 04:43:29,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 133 transitions, 1956 flow [2021-03-26 04:43:29,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 1911 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:29,217 INFO L241 Difference]: Finished difference. Result has 135 places, 126 transitions, 1596 flow [2021-03-26 04:43:29,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1596, PETRI_PLACES=135, PETRI_TRANSITIONS=126} [2021-03-26 04:43:29,218 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 119 predicate places. [2021-03-26 04:43:29,218 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:29,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 126 transitions, 1596 flow [2021-03-26 04:43:29,219 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 126 transitions, 1596 flow [2021-03-26 04:43:29,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 126 transitions, 1596 flow [2021-03-26 04:43:29,263 INFO L129 PetriNetUnfolder]: 155/406 cut-off events. [2021-03-26 04:43:29,263 INFO L130 PetriNetUnfolder]: For 10157/10198 co-relation queries the response was YES. [2021-03-26 04:43:29,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3326 conditions, 406 events. 155/406 cut-off events. For 10157/10198 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2430 event pairs, 23 based on Foata normal form. 1/402 useless extension candidates. Maximal degree in co-relation 3250. Up to 242 conditions per place. [2021-03-26 04:43:29,267 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-26 04:43:29,271 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:29,271 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:29,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-03-26 04:43:29,272 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 126 transitions, 1596 flow [2021-03-26 04:43:29,272 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) [2021-03-26 04:43:29,272 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:29,272 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:29,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-26 04:43:29,273 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash 625741202, now seen corresponding path program 2 times [2021-03-26 04:43:29,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:29,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253353077] [2021-03-26 04:43:29,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:29,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:29,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:43:29,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:29,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:29,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253353077] [2021-03-26 04:43:29,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:29,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:29,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268210739] [2021-03-26 04:43:29,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:29,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:29,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:29,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:29,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2021-03-26 04:43:29,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 1596 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) [2021-03-26 04:43:29,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:29,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2021-03-26 04:43:29,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:29,465 INFO L129 PetriNetUnfolder]: 159/402 cut-off events. [2021-03-26 04:43:29,466 INFO L130 PetriNetUnfolder]: For 10570/10602 co-relation queries the response was YES. [2021-03-26 04:43:29,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3649 conditions, 402 events. 159/402 cut-off events. For 10570/10602 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2265 event pairs, 22 based on Foata normal form. 2/404 useless extension candidates. Maximal degree in co-relation 3568. Up to 244 conditions per place. [2021-03-26 04:43:29,470 INFO L132 encePairwiseOnDemand]: 35/49 looper letters, 116 selfloop transitions, 21 changer transitions 1/144 dead transitions. [2021-03-26 04:43:29,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 144 transitions, 2301 flow [2021-03-26 04:43:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:43:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:43:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2021-03-26 04:43:29,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.39591836734693875 [2021-03-26 04:43:29,472 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 97 transitions. [2021-03-26 04:43:29,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 97 transitions. [2021-03-26 04:43:29,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:29,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 97 transitions. [2021-03-26 04:43:29,472 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) [2021-03-26 04:43:29,472 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) [2021-03-26 04:43:29,473 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) [2021-03-26 04:43:29,473 INFO L185 Difference]: Start difference. First operand has 135 places, 126 transitions, 1596 flow. Second operand 5 states and 97 transitions. [2021-03-26 04:43:29,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 144 transitions, 2301 flow [2021-03-26 04:43:29,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 144 transitions, 2265 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:29,509 INFO L241 Difference]: Finished difference. Result has 139 places, 129 transitions, 1684 flow [2021-03-26 04:43:29,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1684, PETRI_PLACES=139, PETRI_TRANSITIONS=129} [2021-03-26 04:43:29,510 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 123 predicate places. [2021-03-26 04:43:29,510 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:29,510 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 129 transitions, 1684 flow [2021-03-26 04:43:29,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 129 transitions, 1684 flow [2021-03-26 04:43:29,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 129 transitions, 1684 flow [2021-03-26 04:43:29,544 INFO L129 PetriNetUnfolder]: 155/400 cut-off events. [2021-03-26 04:43:29,544 INFO L130 PetriNetUnfolder]: For 9986/10027 co-relation queries the response was YES. [2021-03-26 04:43:29,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3273 conditions, 400 events. 155/400 cut-off events. For 9986/10027 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2340 event pairs, 25 based on Foata normal form. 1/396 useless extension candidates. Maximal degree in co-relation 3196. Up to 240 conditions per place. [2021-03-26 04:43:29,548 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-26 04:43:29,734 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:43:29,734 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:29,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-03-26 04:43:29,735 INFO L480 AbstractCegarLoop]: Abstraction has has 139 places, 129 transitions, 1691 flow [2021-03-26 04:43:29,735 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) [2021-03-26 04:43:29,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:29,735 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:29,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-26 04:43:29,735 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:29,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:29,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1182356917, now seen corresponding path program 1 times [2021-03-26 04:43:29,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:29,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88088534] [2021-03-26 04:43:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:29,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,754 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 04:43:29,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:29,758 INFO L142 QuantifierPusher]: treesize reduction 6, result has 88.2 percent of original size [2021-03-26 04:43:29,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:29,781 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 04:43:29,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:43:29,798 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:29,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:29,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:29,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88088534] [2021-03-26 04:43:29,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814617321] [2021-03-26 04:43:29,817 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 [2021-03-26 04:43:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:29,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:29,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:29,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:29,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:29,867 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 04:43:29,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:29,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:29,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:29,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-03-26 04:43:29,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,908 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:29,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 621 [2021-03-26 04:43:29,928 INFO L142 QuantifierPusher]: treesize reduction 21898, result has 0.5 percent of original size [2021-03-26 04:43:29,929 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size 87 [2021-03-26 04:43:29,930 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.6 percent of original size [2021-03-26 04:43:29,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-26 04:43:29,981 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.3 percent of original size [2021-03-26 04:43:29,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:29,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-26 04:43:29,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-03-26 04:43:29,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-03-26 04:43:29,988 INFO L142 QuantifierPusher]: treesize reduction 214, result has 49.2 percent of original size [2021-03-26 04:43:29,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,989 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:29,990 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:29,991 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,992 INFO L142 QuantifierPusher]: treesize reduction 212, result has 41.3 percent of original size [2021-03-26 04:43:29,994 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:29,994 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,996 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-26 04:43:29,997 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:29,998 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:29,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:29,999 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-26 04:43:30,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:30,002 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 04:43:30,003 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 04:43:30,003 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 04:43:30,004 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-26 04:43:30,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:43:30,034 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:30,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:30,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:30,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:30,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:30,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:30,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,041 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 04:43:30,041 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:30,042 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,043 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 04:43:30,044 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:30,044 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,045 INFO L142 QuantifierPusher]: treesize reduction 103, result has 24.3 percent of original size [2021-03-26 04:43:30,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:30,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:30,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:30,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:30,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,069 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,071 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:30,071 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:30,072 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,073 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:30,073 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:30,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:30,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:30,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:30,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199405872] [2021-03-26 04:43:30,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:30,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:30,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:30,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:30,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2021-03-26 04:43:30,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 129 transitions, 1691 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) [2021-03-26 04:43:30,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:30,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2021-03-26 04:43:30,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:30,723 INFO L129 PetriNetUnfolder]: 166/436 cut-off events. [2021-03-26 04:43:30,723 INFO L130 PetriNetUnfolder]: For 11907/11939 co-relation queries the response was YES. [2021-03-26 04:43:30,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 436 events. 166/436 cut-off events. For 11907/11939 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2583 event pairs, 23 based on Foata normal form. 4/440 useless extension candidates. Maximal degree in co-relation 3890. Up to 292 conditions per place. [2021-03-26 04:43:30,728 INFO L132 encePairwiseOnDemand]: 38/50 looper letters, 126 selfloop transitions, 25 changer transitions 5/160 dead transitions. [2021-03-26 04:43:30,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 160 transitions, 2667 flow [2021-03-26 04:43:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:43:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:43:30,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 157 transitions. [2021-03-26 04:43:30,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.314 [2021-03-26 04:43:30,734 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 157 transitions. [2021-03-26 04:43:30,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 157 transitions. [2021-03-26 04:43:30,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:30,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 157 transitions. [2021-03-26 04:43:30,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.7) internal successors, (157), 10 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) [2021-03-26 04:43:30,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 50.0) internal successors, (550), 11 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:30,735 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 50.0) internal successors, (550), 11 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:30,735 INFO L185 Difference]: Start difference. First operand has 139 places, 129 transitions, 1691 flow. Second operand 10 states and 157 transitions. [2021-03-26 04:43:30,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 160 transitions, 2667 flow [2021-03-26 04:43:30,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 160 transitions, 2640 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-26 04:43:30,763 INFO L241 Difference]: Finished difference. Result has 151 places, 138 transitions, 1967 flow [2021-03-26 04:43:30,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1664, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1967, PETRI_PLACES=151, PETRI_TRANSITIONS=138} [2021-03-26 04:43:30,764 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 135 predicate places. [2021-03-26 04:43:30,764 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:30,764 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 138 transitions, 1967 flow [2021-03-26 04:43:30,764 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 138 transitions, 1967 flow [2021-03-26 04:43:30,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 138 transitions, 1967 flow [2021-03-26 04:43:30,800 INFO L129 PetriNetUnfolder]: 160/422 cut-off events. [2021-03-26 04:43:30,800 INFO L130 PetriNetUnfolder]: For 13030/13071 co-relation queries the response was YES. [2021-03-26 04:43:30,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3756 conditions, 422 events. 160/422 cut-off events. For 13030/13071 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2578 event pairs, 19 based on Foata normal form. 1/419 useless extension candidates. Maximal degree in co-relation 3641. Up to 255 conditions per place. [2021-03-26 04:43:30,805 INFO L142 LiptonReduction]: Number of co-enabled transitions 88 [2021-03-26 04:43:30,907 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-03-26 04:43:31,057 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:31,057 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:31,057 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 293 [2021-03-26 04:43:31,058 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 138 transitions, 1982 flow [2021-03-26 04:43:31,058 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) [2021-03-26 04:43:31,058 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:31,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:31,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable110 [2021-03-26 04:43:31,260 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:31,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1121264968, now seen corresponding path program 1 times [2021-03-26 04:43:31,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:31,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108762522] [2021-03-26 04:43:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:31,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,278 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 04:43:31,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 04:43:31,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 04:43:31,361 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:31,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:31,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:31,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108762522] [2021-03-26 04:43:31,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131194117] [2021-03-26 04:43:31,377 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 [2021-03-26 04:43:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-03-26 04:43:31,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:31,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:31,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:31,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:31,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:31,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,413 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:31,414 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,414 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:31,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:31,428 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.0 percent of original size [2021-03-26 04:43:31,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:31,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,430 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:43:31,431 INFO L142 QuantifierPusher]: treesize reduction 107, result has 43.4 percent of original size [2021-03-26 04:43:31,432 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size 69 [2021-03-26 04:43:31,432 INFO L142 QuantifierPusher]: treesize reduction 8, result has 89.6 percent of original size [2021-03-26 04:43:31,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-26 04:43:31,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:31,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:31,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,463 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:31,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 04:43:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,466 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:31,466 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:31,467 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,467 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:31,467 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:31,468 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:31,469 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:31,470 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,470 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,471 INFO L142 QuantifierPusher]: treesize reduction 57, result has 55.8 percent of original size [2021-03-26 04:43:31,471 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:31,472 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,472 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,472 INFO L142 QuantifierPusher]: treesize reduction 45, result has 49.4 percent of original size [2021-03-26 04:43:31,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:31,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:31,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:31,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:31,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:31,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 04:43:31,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-03-26 04:43:31,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-03-26 04:43:31,500 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.7 percent of original size [2021-03-26 04:43:31,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,502 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:31,502 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:31,503 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,504 INFO L142 QuantifierPusher]: treesize reduction 178, result has 38.4 percent of original size [2021-03-26 04:43:31,506 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:31,506 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,507 INFO L142 QuantifierPusher]: treesize reduction 59, result has 63.8 percent of original size [2021-03-26 04:43:31,508 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:31,508 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,509 INFO L142 QuantifierPusher]: treesize reduction 87, result has 32.0 percent of original size [2021-03-26 04:43:31,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:31,513 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 04:43:31,514 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:31,514 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:31,515 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 04:43:31,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:31,545 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:31,546 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:31,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:31,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:31,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:31,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,551 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:31,551 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:31,554 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,556 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:31,556 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:31,557 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:31,558 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:31,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:31,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:31,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:31,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:31,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:31,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685255760] [2021-03-26 04:43:31,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:31,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:31,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:31,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:31,579 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 51 [2021-03-26 04:43:31,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 138 transitions, 1982 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) [2021-03-26 04:43:31,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:31,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 51 [2021-03-26 04:43:31,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:32,255 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2021-03-26 04:43:32,457 INFO L129 PetriNetUnfolder]: 189/496 cut-off events. [2021-03-26 04:43:32,457 INFO L130 PetriNetUnfolder]: For 17485/17517 co-relation queries the response was YES. [2021-03-26 04:43:32,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5046 conditions, 496 events. 189/496 cut-off events. For 17485/17517 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3077 event pairs, 21 based on Foata normal form. 3/499 useless extension candidates. Maximal degree in co-relation 4782. Up to 306 conditions per place. [2021-03-26 04:43:32,462 INFO L132 encePairwiseOnDemand]: 37/51 looper letters, 131 selfloop transitions, 39 changer transitions 6/180 dead transitions. [2021-03-26 04:43:32,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 180 transitions, 3246 flow [2021-03-26 04:43:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:43:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:43:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 157 transitions. [2021-03-26 04:43:32,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.307843137254902 [2021-03-26 04:43:32,464 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 157 transitions. [2021-03-26 04:43:32,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 157 transitions. [2021-03-26 04:43:32,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:32,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 157 transitions. [2021-03-26 04:43:32,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 15.7) internal successors, (157), 10 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) [2021-03-26 04:43:32,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 51.0) internal successors, (561), 11 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:32,465 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 51.0) internal successors, (561), 11 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:32,465 INFO L185 Difference]: Start difference. First operand has 150 places, 138 transitions, 1982 flow. Second operand 10 states and 157 transitions. [2021-03-26 04:43:32,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 180 transitions, 3246 flow [2021-03-26 04:43:32,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 180 transitions, 3080 flow, removed 82 selfloop flow, removed 2 redundant places. [2021-03-26 04:43:32,521 INFO L241 Difference]: Finished difference. Result has 163 places, 149 transitions, 2325 flow [2021-03-26 04:43:32,521 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=1830, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2325, PETRI_PLACES=163, PETRI_TRANSITIONS=149} [2021-03-26 04:43:32,522 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 147 predicate places. [2021-03-26 04:43:32,522 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:32,522 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 149 transitions, 2325 flow [2021-03-26 04:43:32,522 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 149 transitions, 2325 flow [2021-03-26 04:43:32,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 149 transitions, 2325 flow [2021-03-26 04:43:32,566 INFO L129 PetriNetUnfolder]: 183/480 cut-off events. [2021-03-26 04:43:32,567 INFO L130 PetriNetUnfolder]: For 17409/17454 co-relation queries the response was YES. [2021-03-26 04:43:32,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4595 conditions, 480 events. 183/480 cut-off events. For 17409/17454 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3037 event pairs, 30 based on Foata normal form. 5/480 useless extension candidates. Maximal degree in co-relation 4472. Up to 293 conditions per place. [2021-03-26 04:43:32,580 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-26 04:43:32,928 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:32,928 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:32,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 406 [2021-03-26 04:43:32,929 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 149 transitions, 2351 flow [2021-03-26 04:43:32,929 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) [2021-03-26 04:43:32,929 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:32,929 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:33,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-03-26 04:43:33,132 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash 898306105, now seen corresponding path program 1 times [2021-03-26 04:43:33,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:33,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070098268] [2021-03-26 04:43:33,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:33,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,153 INFO L142 QuantifierPusher]: treesize reduction 68, result has 23.6 percent of original size [2021-03-26 04:43:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:33,162 INFO L142 QuantifierPusher]: treesize reduction 65, result has 24.4 percent of original size [2021-03-26 04:43:33,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:33,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:33,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:33,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070098268] [2021-03-26 04:43:33,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958813352] [2021-03-26 04:43:33,179 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 [2021-03-26 04:43:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:33,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:33,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:33,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:33,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:33,260 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 04:43:33,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:33,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:33,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:33,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-03-26 04:43:33,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 04:43:33,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 749 [2021-03-26 04:43:33,310 INFO L142 QuantifierPusher]: treesize reduction 8182, result has 2.5 percent of original size [2021-03-26 04:43:33,312 INFO L147 QuantifierPusher]: treesize reduction 99, result has 52.4 percent of original size 109 [2021-03-26 04:43:33,314 INFO L142 QuantifierPusher]: treesize reduction 99, result has 52.4 percent of original size [2021-03-26 04:43:33,315 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.7 percent of original size 101 [2021-03-26 04:43:33,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:33,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:43:33,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:33,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:43:33,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,419 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:33,419 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:33,420 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,420 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:33,420 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:33,421 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:33,423 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:33,423 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,424 INFO L142 QuantifierPusher]: treesize reduction 66, result has 52.5 percent of original size [2021-03-26 04:43:33,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:43:33,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 04:43:33,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 04:43:33,512 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.4 percent of original size [2021-03-26 04:43:33,512 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:33,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-03-26 04:43:33,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,515 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 04:43:33,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-03-26 04:43:33,519 INFO L142 QuantifierPusher]: treesize reduction 330, result has 22.7 percent of original size [2021-03-26 04:43:33,520 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:33,520 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,521 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:33,522 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,522 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:33,523 INFO L142 QuantifierPusher]: treesize reduction 30, result has 73.5 percent of original size [2021-03-26 04:43:33,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:33,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:33,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:33,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:33,546 INFO L142 QuantifierPusher]: treesize reduction 30, result has 3.2 percent of original size [2021-03-26 04:43:33,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:33,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:33,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2021-03-26 04:43:33,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653113056] [2021-03-26 04:43:33,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:43:33,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:33,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:43:33,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:43:33,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 53 [2021-03-26 04:43:33,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 149 transitions, 2351 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) [2021-03-26 04:43:33,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:33,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 53 [2021-03-26 04:43:33,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:34,021 INFO L129 PetriNetUnfolder]: 192/500 cut-off events. [2021-03-26 04:43:34,022 INFO L130 PetriNetUnfolder]: For 20768/20800 co-relation queries the response was YES. [2021-03-26 04:43:34,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5261 conditions, 500 events. 192/500 cut-off events. For 20768/20800 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3087 event pairs, 28 based on Foata normal form. 4/503 useless extension candidates. Maximal degree in co-relation 4986. Up to 362 conditions per place. [2021-03-26 04:43:34,048 INFO L132 encePairwiseOnDemand]: 42/53 looper letters, 147 selfloop transitions, 27 changer transitions 1/179 dead transitions. [2021-03-26 04:43:34,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 179 transitions, 3229 flow [2021-03-26 04:43:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:43:34,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:43:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 166 transitions. [2021-03-26 04:43:34,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2847341337907376 [2021-03-26 04:43:34,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 166 transitions. [2021-03-26 04:43:34,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 166 transitions. [2021-03-26 04:43:34,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:34,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 166 transitions. [2021-03-26 04:43:34,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 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) [2021-03-26 04:43:34,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:34,052 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 53.0) internal successors, (636), 12 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:34,052 INFO L185 Difference]: Start difference. First operand has 161 places, 149 transitions, 2351 flow. Second operand 11 states and 166 transitions. [2021-03-26 04:43:34,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 179 transitions, 3229 flow [2021-03-26 04:43:34,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 179 transitions, 2959 flow, removed 127 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:34,112 INFO L241 Difference]: Finished difference. Result has 172 places, 156 transitions, 2357 flow [2021-03-26 04:43:34,112 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=2119, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2357, PETRI_PLACES=172, PETRI_TRANSITIONS=156} [2021-03-26 04:43:34,112 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 156 predicate places. [2021-03-26 04:43:34,112 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:34,113 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 156 transitions, 2357 flow [2021-03-26 04:43:34,113 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 156 transitions, 2357 flow [2021-03-26 04:43:34,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 172 places, 156 transitions, 2357 flow [2021-03-26 04:43:34,156 INFO L129 PetriNetUnfolder]: 187/495 cut-off events. [2021-03-26 04:43:34,156 INFO L130 PetriNetUnfolder]: For 14716/14767 co-relation queries the response was YES. [2021-03-26 04:43:34,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4489 conditions, 495 events. 187/495 cut-off events. For 14716/14767 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3136 event pairs, 24 based on Foata normal form. 5/497 useless extension candidates. Maximal degree in co-relation 4363. Up to 298 conditions per place. [2021-03-26 04:43:34,160 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 04:43:34,487 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:43:34,487 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:34,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-03-26 04:43:34,488 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 155 transitions, 2372 flow [2021-03-26 04:43:34,488 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) [2021-03-26 04:43:34,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:34,488 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:34,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2021-03-26 04:43:34,691 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:34,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash -242102767, now seen corresponding path program 1 times [2021-03-26 04:43:34,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:34,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225889652] [2021-03-26 04:43:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:34,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:34,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:34,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:34,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:43:34,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:34,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225889652] [2021-03-26 04:43:34,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:34,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:34,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962243938] [2021-03-26 04:43:34,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:34,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:34,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:34,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 55 [2021-03-26 04:43:34,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 155 transitions, 2372 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) [2021-03-26 04:43:34,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:34,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 55 [2021-03-26 04:43:34,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:34,859 INFO L129 PetriNetUnfolder]: 188/492 cut-off events. [2021-03-26 04:43:34,860 INFO L130 PetriNetUnfolder]: For 16185/16229 co-relation queries the response was YES. [2021-03-26 04:43:34,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4871 conditions, 492 events. 188/492 cut-off events. For 16185/16229 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3048 event pairs, 27 based on Foata normal form. 2/489 useless extension candidates. Maximal degree in co-relation 4636. Up to 299 conditions per place. [2021-03-26 04:43:34,864 INFO L132 encePairwiseOnDemand]: 37/55 looper letters, 116 selfloop transitions, 32 changer transitions 1/167 dead transitions. [2021-03-26 04:43:34,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 167 transitions, 2928 flow [2021-03-26 04:43:34,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 131 transitions. [2021-03-26 04:43:34,865 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.396969696969697 [2021-03-26 04:43:34,865 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 131 transitions. [2021-03-26 04:43:34,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 131 transitions. [2021-03-26 04:43:34,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:34,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 131 transitions. [2021-03-26 04:43:34,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 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) [2021-03-26 04:43:34,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:34,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:34,866 INFO L185 Difference]: Start difference. First operand has 171 places, 155 transitions, 2372 flow. Second operand 6 states and 131 transitions. [2021-03-26 04:43:34,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 167 transitions, 2928 flow [2021-03-26 04:43:34,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 2822 flow, removed 41 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:34,917 INFO L241 Difference]: Finished difference. Result has 172 places, 153 transitions, 2298 flow [2021-03-26 04:43:34,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2298, PETRI_PLACES=172, PETRI_TRANSITIONS=153} [2021-03-26 04:43:34,917 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 156 predicate places. [2021-03-26 04:43:34,917 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:34,918 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 153 transitions, 2298 flow [2021-03-26 04:43:34,918 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 153 transitions, 2298 flow [2021-03-26 04:43:34,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 153 transitions, 2298 flow [2021-03-26 04:43:34,958 INFO L129 PetriNetUnfolder]: 186/490 cut-off events. [2021-03-26 04:43:34,958 INFO L130 PetriNetUnfolder]: For 15048/15086 co-relation queries the response was YES. [2021-03-26 04:43:34,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4443 conditions, 490 events. 186/490 cut-off events. For 15048/15086 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3119 event pairs, 25 based on Foata normal form. 7/494 useless extension candidates. Maximal degree in co-relation 4210. Up to 293 conditions per place. [2021-03-26 04:43:34,962 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 04:43:34,966 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:34,967 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:34,967 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 04:43:34,967 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 153 transitions, 2298 flow [2021-03-26 04:43:34,967 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) [2021-03-26 04:43:34,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:34,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:34,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-26 04:43:34,967 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash -269082157, now seen corresponding path program 1 times [2021-03-26 04:43:34,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:34,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522760898] [2021-03-26 04:43:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:34,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:43:34,994 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.8 percent of original size [2021-03-26 04:43:34,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:35,010 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:35,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:35,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:35,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522760898] [2021-03-26 04:43:35,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075459228] [2021-03-26 04:43:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:35,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-26 04:43:35,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:35,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:35,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,076 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:35,077 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,077 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:35,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 316 [2021-03-26 04:43:35,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,096 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 04:43:35,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 552 [2021-03-26 04:43:35,104 INFO L142 QuantifierPusher]: treesize reduction 6732, result has 2.8 percent of original size [2021-03-26 04:43:35,106 INFO L147 QuantifierPusher]: treesize reduction 91, result has 51.6 percent of original size 97 [2021-03-26 04:43:35,107 INFO L142 QuantifierPusher]: treesize reduction 91, result has 51.6 percent of original size [2021-03-26 04:43:35,108 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-26 04:43:35,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 93.3 percent of original size [2021-03-26 04:43:35,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:35,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 04:43:35,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-03-26 04:43:35,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-26 04:43:35,200 INFO L142 QuantifierPusher]: treesize reduction 40, result has 76.9 percent of original size [2021-03-26 04:43:35,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,202 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:35,202 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:35,203 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,203 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,204 INFO L142 QuantifierPusher]: treesize reduction 82, result has 61.9 percent of original size [2021-03-26 04:43:35,205 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:35,205 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,206 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,206 INFO L142 QuantifierPusher]: treesize reduction 89, result has 34.6 percent of original size [2021-03-26 04:43:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:43:35,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:35,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:35,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:35,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:35,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,234 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:35,234 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:35,234 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,235 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:35,235 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:35,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:35,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-03-26 04:43:35,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957702297] [2021-03-26 04:43:35,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 04:43:35,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:35,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 04:43:35,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-26 04:43:35,255 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2021-03-26 04:43:35,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 153 transitions, 2298 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) [2021-03-26 04:43:35,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:35,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2021-03-26 04:43:35,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:35,544 INFO L129 PetriNetUnfolder]: 190/503 cut-off events. [2021-03-26 04:43:35,544 INFO L130 PetriNetUnfolder]: For 16540/16564 co-relation queries the response was YES. [2021-03-26 04:43:35,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5000 conditions, 503 events. 190/503 cut-off events. For 16540/16564 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3149 event pairs, 28 based on Foata normal form. 2/504 useless extension candidates. Maximal degree in co-relation 4733. Up to 365 conditions per place. [2021-03-26 04:43:35,548 INFO L132 encePairwiseOnDemand]: 43/55 looper letters, 134 selfloop transitions, 26 changer transitions 4/169 dead transitions. [2021-03-26 04:43:35,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 169 transitions, 2908 flow [2021-03-26 04:43:35,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:43:35,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:43:35,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions. [2021-03-26 04:43:35,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30454545454545456 [2021-03-26 04:43:35,550 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 134 transitions. [2021-03-26 04:43:35,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 134 transitions. [2021-03-26 04:43:35,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:35,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 134 transitions. [2021-03-26 04:43:35,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 16.75) internal successors, (134), 8 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) [2021-03-26 04:43:35,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:35,551 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:35,551 INFO L185 Difference]: Start difference. First operand has 171 places, 153 transitions, 2298 flow. Second operand 8 states and 134 transitions. [2021-03-26 04:43:35,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 169 transitions, 2908 flow [2021-03-26 04:43:35,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 169 transitions, 2871 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:35,594 INFO L241 Difference]: Finished difference. Result has 178 places, 154 transitions, 2336 flow [2021-03-26 04:43:35,594 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2261, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2336, PETRI_PLACES=178, PETRI_TRANSITIONS=154} [2021-03-26 04:43:35,594 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 162 predicate places. [2021-03-26 04:43:35,594 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:35,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 154 transitions, 2336 flow [2021-03-26 04:43:35,595 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 154 transitions, 2336 flow [2021-03-26 04:43:35,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 154 transitions, 2336 flow [2021-03-26 04:43:35,637 INFO L129 PetriNetUnfolder]: 185/492 cut-off events. [2021-03-26 04:43:35,637 INFO L130 PetriNetUnfolder]: For 15931/15969 co-relation queries the response was YES. [2021-03-26 04:43:35,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4586 conditions, 492 events. 185/492 cut-off events. For 15931/15969 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3148 event pairs, 23 based on Foata normal form. 7/496 useless extension candidates. Maximal degree in co-relation 4319. Up to 294 conditions per place. [2021-03-26 04:43:35,641 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 04:43:35,645 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:35,645 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:35,645 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-26 04:43:35,645 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 154 transitions, 2336 flow [2021-03-26 04:43:35,646 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) [2021-03-26 04:43:35,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:35,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:35,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2021-03-26 04:43:35,846 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:35,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:35,846 INFO L82 PathProgramCache]: Analyzing trace with hash -203314885, now seen corresponding path program 1 times [2021-03-26 04:43:35,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:35,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76977060] [2021-03-26 04:43:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:35,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,863 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-03-26 04:43:35,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:35,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:35,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:35,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76977060] [2021-03-26 04:43:35,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409099832] [2021-03-26 04:43:35,883 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 [2021-03-26 04:43:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:35,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 13 conjunts are in the unsatisfiable core [2021-03-26 04:43:35,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:35,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:35,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:35,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:35,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,933 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:35,934 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:35,934 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:35,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:35,947 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 04:43:35,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:35,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:35,950 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-26 04:43:35,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:35,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:35,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:36,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:36,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:36,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:43:36,039 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 04:43:36,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:36,043 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:36,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:36,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:36,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 04:43:36,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793790780] [2021-03-26 04:43:36,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:43:36,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:36,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:43:36,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:43:36,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 55 [2021-03-26 04:43:36,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 154 transitions, 2336 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) [2021-03-26 04:43:36,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:36,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 55 [2021-03-26 04:43:36,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:36,254 INFO L129 PetriNetUnfolder]: 191/502 cut-off events. [2021-03-26 04:43:36,255 INFO L130 PetriNetUnfolder]: For 17800/17844 co-relation queries the response was YES. [2021-03-26 04:43:36,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5049 conditions, 502 events. 191/502 cut-off events. For 17800/17844 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3133 event pairs, 24 based on Foata normal form. 4/501 useless extension candidates. Maximal degree in co-relation 4780. Up to 303 conditions per place. [2021-03-26 04:43:36,259 INFO L132 encePairwiseOnDemand]: 44/55 looper letters, 112 selfloop transitions, 38 changer transitions 1/170 dead transitions. [2021-03-26 04:43:36,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 170 transitions, 2941 flow [2021-03-26 04:43:36,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2021-03-26 04:43:36,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3939393939393939 [2021-03-26 04:43:36,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 130 transitions. [2021-03-26 04:43:36,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 130 transitions. [2021-03-26 04:43:36,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:36,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 130 transitions. [2021-03-26 04:43:36,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:36,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:36,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 55.0) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:36,262 INFO L185 Difference]: Start difference. First operand has 175 places, 154 transitions, 2336 flow. Second operand 6 states and 130 transitions. [2021-03-26 04:43:36,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 170 transitions, 2941 flow [2021-03-26 04:43:36,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 170 transitions, 2867 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:36,312 INFO L241 Difference]: Finished difference. Result has 177 places, 155 transitions, 2371 flow [2021-03-26 04:43:36,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2262, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2371, PETRI_PLACES=177, PETRI_TRANSITIONS=155} [2021-03-26 04:43:36,312 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 161 predicate places. [2021-03-26 04:43:36,313 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:36,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 155 transitions, 2371 flow [2021-03-26 04:43:36,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 155 transitions, 2371 flow [2021-03-26 04:43:36,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 177 places, 155 transitions, 2371 flow [2021-03-26 04:43:36,372 INFO L129 PetriNetUnfolder]: 189/500 cut-off events. [2021-03-26 04:43:36,372 INFO L130 PetriNetUnfolder]: For 15699/15750 co-relation queries the response was YES. [2021-03-26 04:43:36,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4650 conditions, 500 events. 189/500 cut-off events. For 15699/15750 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3174 event pairs, 22 based on Foata normal form. 5/501 useless extension candidates. Maximal degree in co-relation 4420. Up to 301 conditions per place. [2021-03-26 04:43:36,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 04:43:36,380 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:36,381 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:36,381 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 04:43:36,381 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 155 transitions, 2371 flow [2021-03-26 04:43:36,381 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) [2021-03-26 04:43:36,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:36,381 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:36,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:36,582 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:36,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash -202452118, now seen corresponding path program 2 times [2021-03-26 04:43:36,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:36,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743213944] [2021-03-26 04:43:36,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:36,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:36,617 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-26 04:43:36,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:36,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:36,654 INFO L142 QuantifierPusher]: treesize reduction 1308, result has 12.2 percent of original size [2021-03-26 04:43:36,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-03-26 04:43:36,708 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:36,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:36,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:36,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:36,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743213944] [2021-03-26 04:43:36,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779525262] [2021-03-26 04:43:36,727 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 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 [2021-03-26 04:43:36,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:36,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:36,764 WARN L261 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 34 conjunts are in the unsatisfiable core [2021-03-26 04:43:36,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:36,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:36,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:36,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:36,769 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 04:43:36,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:36,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:36,805 INFO L142 QuantifierPusher]: treesize reduction 25, result has 80.8 percent of original size [2021-03-26 04:43:36,805 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 04:43:36,807 INFO L147 QuantifierPusher]: treesize reduction 40, result has 61.9 percent of original size 65 [2021-03-26 04:43:36,807 INFO L142 QuantifierPusher]: treesize reduction 40, result has 62.3 percent of original size [2021-03-26 04:43:36,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:36,809 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.8 percent of original size [2021-03-26 04:43:36,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:36,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:36,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-03-26 04:43:36,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 04:43:36,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 763 [2021-03-26 04:43:36,866 INFO L142 QuantifierPusher]: treesize reduction 6977, result has 1.6 percent of original size [2021-03-26 04:43:36,867 INFO L147 QuantifierPusher]: treesize reduction 8, result has 92.7 percent of original size 101 [2021-03-26 04:43:36,868 INFO L142 QuantifierPusher]: treesize reduction 8, result has 92.7 percent of original size [2021-03-26 04:43:36,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 04:43:36,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:36,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:43:36,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:36,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:43:36,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,920 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:36,920 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:36,921 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,921 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:36,921 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:36,922 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,923 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 04:43:36,923 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:36,924 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:36,925 INFO L142 QuantifierPusher]: treesize reduction 62, result has 54.1 percent of original size [2021-03-26 04:43:36,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:43:36,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 04:43:36,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:36,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-26 04:43:37,003 INFO L142 QuantifierPusher]: treesize reduction 4, result has 97.4 percent of original size [2021-03-26 04:43:37,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-03-26 04:43:37,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,006 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 04:43:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-03-26 04:43:37,009 INFO L142 QuantifierPusher]: treesize reduction 214, result has 49.9 percent of original size [2021-03-26 04:43:37,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,010 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:37,010 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:37,011 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,011 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,012 INFO L142 QuantifierPusher]: treesize reduction 139, result has 61.0 percent of original size [2021-03-26 04:43:37,013 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:43:37,014 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,015 INFO L142 QuantifierPusher]: treesize reduction 162, result has 47.7 percent of original size [2021-03-26 04:43:37,016 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:37,016 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,016 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,018 INFO L142 QuantifierPusher]: treesize reduction 112, result has 56.4 percent of original size [2021-03-26 04:43:37,020 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:37,021 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,022 INFO L142 QuantifierPusher]: treesize reduction 112, result has 30.0 percent of original size [2021-03-26 04:43:37,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:43:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:43:37,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:37,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:37,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:37,062 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:37,063 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:37,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,065 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:37,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:37,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:37,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,068 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:37,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,069 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 04:43:37,069 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:37,070 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,071 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:37,071 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:37,071 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,072 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:37,073 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 2, 1] term [2021-03-26 04:43:37,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:37,073 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,075 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:37,075 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:37,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:37,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:37,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:37,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:43:37,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005474002] [2021-03-26 04:43:37,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:43:37,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:37,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:43:37,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:43:37,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 55 [2021-03-26 04:43:37,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 155 transitions, 2371 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) [2021-03-26 04:43:37,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:37,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 55 [2021-03-26 04:43:37,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:38,217 INFO L129 PetriNetUnfolder]: 201/526 cut-off events. [2021-03-26 04:43:38,218 INFO L130 PetriNetUnfolder]: For 17675/17707 co-relation queries the response was YES. [2021-03-26 04:43:38,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5401 conditions, 526 events. 201/526 cut-off events. For 17675/17707 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3316 event pairs, 9 based on Foata normal form. 10/534 useless extension candidates. Maximal degree in co-relation 5157. Up to 320 conditions per place. [2021-03-26 04:43:38,223 INFO L132 encePairwiseOnDemand]: 39/55 looper letters, 133 selfloop transitions, 59 changer transitions 4/200 dead transitions. [2021-03-26 04:43:38,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 200 transitions, 3988 flow [2021-03-26 04:43:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 04:43:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 04:43:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 254 transitions. [2021-03-26 04:43:38,225 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25656565656565655 [2021-03-26 04:43:38,225 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 254 transitions. [2021-03-26 04:43:38,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 254 transitions. [2021-03-26 04:43:38,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:38,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 254 transitions. [2021-03-26 04:43:38,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 14.11111111111111) internal successors, (254), 18 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:38,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 55.0) internal successors, (1045), 19 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) [2021-03-26 04:43:38,227 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 55.0) internal successors, (1045), 19 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) [2021-03-26 04:43:38,227 INFO L185 Difference]: Start difference. First operand has 177 places, 155 transitions, 2371 flow. Second operand 18 states and 254 transitions. [2021-03-26 04:43:38,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 200 transitions, 3988 flow [2021-03-26 04:43:38,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 200 transitions, 3915 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:38,279 INFO L241 Difference]: Finished difference. Result has 199 places, 170 transitions, 2929 flow [2021-03-26 04:43:38,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=2286, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2929, PETRI_PLACES=199, PETRI_TRANSITIONS=170} [2021-03-26 04:43:38,280 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 183 predicate places. [2021-03-26 04:43:38,280 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:38,280 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 170 transitions, 2929 flow [2021-03-26 04:43:38,280 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 170 transitions, 2929 flow [2021-03-26 04:43:38,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 197 places, 170 transitions, 2929 flow [2021-03-26 04:43:38,330 INFO L129 PetriNetUnfolder]: 196/510 cut-off events. [2021-03-26 04:43:38,330 INFO L130 PetriNetUnfolder]: For 20844/20891 co-relation queries the response was YES. [2021-03-26 04:43:38,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5246 conditions, 510 events. 196/510 cut-off events. For 20844/20891 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3256 event pairs, 24 based on Foata normal form. 2/508 useless extension candidates. Maximal degree in co-relation 4989. Up to 314 conditions per place. [2021-03-26 04:43:38,334 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 04:43:39,347 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:39,347 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 04:43:39,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1067 [2021-03-26 04:43:39,348 INFO L480 AbstractCegarLoop]: Abstraction has has 196 places, 169 transitions, 2969 flow [2021-03-26 04:43:39,348 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) [2021-03-26 04:43:39,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:39,348 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:39,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:39,548 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:39,549 INFO L82 PathProgramCache]: Analyzing trace with hash -562625308, now seen corresponding path program 3 times [2021-03-26 04:43:39,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:39,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687621341] [2021-03-26 04:43:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:39,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:39,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:39,583 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-26 04:43:39,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:39,593 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.0 percent of original size [2021-03-26 04:43:39,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:39,657 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.6 percent of original size [2021-03-26 04:43:39,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:39,690 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:39,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:39,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:39,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687621341] [2021-03-26 04:43:39,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360252449] [2021-03-26 04:43:39,709 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 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 [2021-03-26 04:43:39,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:43:39,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:39,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 04:43:39,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:39,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:39,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:39,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:39,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:39,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:39,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:39,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:39,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,764 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:39,764 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,765 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:39,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,782 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:43:39,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:39,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:39,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:39,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,785 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:39,785 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,786 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:39,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:39,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-26 04:43:39,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,809 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 04:43:39,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 683 [2021-03-26 04:43:39,818 INFO L142 QuantifierPusher]: treesize reduction 6889, result has 1.7 percent of original size [2021-03-26 04:43:39,819 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.2 percent of original size 109 [2021-03-26 04:43:39,820 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.2 percent of original size [2021-03-26 04:43:39,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-26 04:43:39,889 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.3 percent of original size [2021-03-26 04:43:39,889 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:39,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-03-26 04:43:39,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-03-26 04:43:39,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-03-26 04:43:39,897 INFO L142 QuantifierPusher]: treesize reduction 214, result has 50.8 percent of original size [2021-03-26 04:43:39,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,898 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:39,899 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:43:39,900 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,901 INFO L142 QuantifierPusher]: treesize reduction 172, result has 56.7 percent of original size [2021-03-26 04:43:39,902 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:43:39,902 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,904 INFO L142 QuantifierPusher]: treesize reduction 170, result has 47.9 percent of original size [2021-03-26 04:43:39,904 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:39,905 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,906 INFO L142 QuantifierPusher]: treesize reduction 132, result has 51.6 percent of original size [2021-03-26 04:43:39,908 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:39,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,910 INFO L142 QuantifierPusher]: treesize reduction 104, result has 31.6 percent of original size [2021-03-26 04:43:39,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:39,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:43:39,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:43:39,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:39,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:39,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:39,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:39,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:39,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,954 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:39,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:39,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,956 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 04:43:39,956 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:39,957 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:39,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:39,997 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:39,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:39,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:39,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:39,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:39,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:40,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:40,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:40,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,002 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 04:43:40,002 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:40,003 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,004 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:40,004 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:40,004 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,005 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:40,005 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 2, 1] term [2021-03-26 04:43:40,005 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:40,006 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,007 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:40,007 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:40,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:40,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:40,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:43:40,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612663559] [2021-03-26 04:43:40,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:43:40,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:40,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:43:40,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:43:40,035 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 61 [2021-03-26 04:43:40,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 169 transitions, 2969 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) [2021-03-26 04:43:40,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:40,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 61 [2021-03-26 04:43:40,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:40,423 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-03-26 04:43:41,428 INFO L129 PetriNetUnfolder]: 205/543 cut-off events. [2021-03-26 04:43:41,428 INFO L130 PetriNetUnfolder]: For 24646/24682 co-relation queries the response was YES. [2021-03-26 04:43:41,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6093 conditions, 543 events. 205/543 cut-off events. For 24646/24682 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3514 event pairs, 11 based on Foata normal form. 14/555 useless extension candidates. Maximal degree in co-relation 5822. Up to 333 conditions per place. [2021-03-26 04:43:41,433 INFO L132 encePairwiseOnDemand]: 44/61 looper letters, 141 selfloop transitions, 58 changer transitions 6/209 dead transitions. [2021-03-26 04:43:41,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 209 transitions, 4519 flow [2021-03-26 04:43:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 04:43:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 04:43:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 260 transitions. [2021-03-26 04:43:41,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23679417122040072 [2021-03-26 04:43:41,434 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 260 transitions. [2021-03-26 04:43:41,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 260 transitions. [2021-03-26 04:43:41,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:41,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 260 transitions. [2021-03-26 04:43:41,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 14.444444444444445) internal successors, (260), 18 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:41,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 61.0) internal successors, (1159), 19 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:41,436 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 61.0) internal successors, (1159), 19 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:41,436 INFO L185 Difference]: Start difference. First operand has 196 places, 169 transitions, 2969 flow. Second operand 18 states and 260 transitions. [2021-03-26 04:43:41,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 209 transitions, 4519 flow [2021-03-26 04:43:41,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 209 transitions, 4051 flow, removed 211 selfloop flow, removed 7 redundant places. [2021-03-26 04:43:41,538 INFO L241 Difference]: Finished difference. Result has 213 places, 175 transitions, 2988 flow [2021-03-26 04:43:41,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2988, PETRI_PLACES=213, PETRI_TRANSITIONS=175} [2021-03-26 04:43:41,538 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 197 predicate places. [2021-03-26 04:43:41,538 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:41,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 175 transitions, 2988 flow [2021-03-26 04:43:41,538 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 175 transitions, 2988 flow [2021-03-26 04:43:41,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 175 transitions, 2988 flow [2021-03-26 04:43:41,592 INFO L129 PetriNetUnfolder]: 200/526 cut-off events. [2021-03-26 04:43:41,593 INFO L130 PetriNetUnfolder]: For 27437/27471 co-relation queries the response was YES. [2021-03-26 04:43:41,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5715 conditions, 526 events. 200/526 cut-off events. For 27437/27471 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3409 event pairs, 21 based on Foata normal form. 4/526 useless extension candidates. Maximal degree in co-relation 5602. Up to 313 conditions per place. [2021-03-26 04:43:41,598 INFO L142 LiptonReduction]: Number of co-enabled transitions 110 [2021-03-26 04:43:41,879 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:41,879 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:41,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 341 [2021-03-26 04:43:41,879 INFO L480 AbstractCegarLoop]: Abstraction has has 208 places, 175 transitions, 2992 flow [2021-03-26 04:43:41,879 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) [2021-03-26 04:43:41,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:41,880 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:42,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:42,092 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:42,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:42,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1074459662, now seen corresponding path program 1 times [2021-03-26 04:43:42,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:42,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434187989] [2021-03-26 04:43:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:42,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:42,120 INFO L142 QuantifierPusher]: treesize reduction 125, result has 10.1 percent of original size [2021-03-26 04:43:42,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:42,130 INFO L142 QuantifierPusher]: treesize reduction 129, result has 11.6 percent of original size [2021-03-26 04:43:42,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:43:42,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:42,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434187989] [2021-03-26 04:43:42,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351976850] [2021-03-26 04:43:42,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:42,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 20 conjunts are in the unsatisfiable core [2021-03-26 04:43:42,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:42,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:42,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,210 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:42,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:42,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:42,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,212 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:42,212 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:42,213 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:42,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,227 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:43:42,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:42,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:42,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:42,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:42,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,230 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:42,230 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:42,231 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:42,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:42,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-03-26 04:43:42,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-03-26 04:43:42,252 INFO L142 QuantifierPusher]: treesize reduction 776, result has 6.7 percent of original size [2021-03-26 04:43:42,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:42,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:42,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 88.6 percent of original size [2021-03-26 04:43:42,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:43:42,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,281 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:42,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:43:42,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 04:43:42,283 INFO L142 QuantifierPusher]: treesize reduction 60, result has 1.6 percent of original size [2021-03-26 04:43:42,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:42,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:42,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:42,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-26 04:43:42,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333550723] [2021-03-26 04:43:42,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:43:42,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:42,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:43:42,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:43:42,290 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 63 [2021-03-26 04:43:42,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 175 transitions, 2992 flow. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 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) [2021-03-26 04:43:42,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:42,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 63 [2021-03-26 04:43:42,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:42,640 INFO L129 PetriNetUnfolder]: 202/526 cut-off events. [2021-03-26 04:43:42,640 INFO L130 PetriNetUnfolder]: For 29831/29881 co-relation queries the response was YES. [2021-03-26 04:43:42,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6083 conditions, 526 events. 202/526 cut-off events. For 29831/29881 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3305 event pairs, 21 based on Foata normal form. 24/549 useless extension candidates. Maximal degree in co-relation 5792. Up to 315 conditions per place. [2021-03-26 04:43:42,647 INFO L132 encePairwiseOnDemand]: 53/63 looper letters, 123 selfloop transitions, 39 changer transitions 1/186 dead transitions. [2021-03-26 04:43:42,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 186 transitions, 3593 flow [2021-03-26 04:43:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:43:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:43:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 147 transitions. [2021-03-26 04:43:42,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2021-03-26 04:43:42,649 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 147 transitions. [2021-03-26 04:43:42,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 147 transitions. [2021-03-26 04:43:42,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:42,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 147 transitions. [2021-03-26 04:43:42,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:42,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:42,651 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:42,651 INFO L185 Difference]: Start difference. First operand has 208 places, 175 transitions, 2992 flow. Second operand 7 states and 147 transitions. [2021-03-26 04:43:42,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 186 transitions, 3593 flow [2021-03-26 04:43:42,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 186 transitions, 3126 flow, removed 167 selfloop flow, removed 13 redundant places. [2021-03-26 04:43:42,774 INFO L241 Difference]: Finished difference. Result has 201 places, 173 transitions, 2570 flow [2021-03-26 04:43:42,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=2520, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2570, PETRI_PLACES=201, PETRI_TRANSITIONS=173} [2021-03-26 04:43:42,774 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 185 predicate places. [2021-03-26 04:43:42,774 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:42,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 173 transitions, 2570 flow [2021-03-26 04:43:42,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 173 transitions, 2570 flow [2021-03-26 04:43:42,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 173 transitions, 2570 flow [2021-03-26 04:43:42,854 INFO L129 PetriNetUnfolder]: 199/523 cut-off events. [2021-03-26 04:43:42,854 INFO L130 PetriNetUnfolder]: For 24174/24197 co-relation queries the response was YES. [2021-03-26 04:43:42,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5322 conditions, 523 events. 199/523 cut-off events. For 24174/24197 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3364 event pairs, 20 based on Foata normal form. 8/527 useless extension candidates. Maximal degree in co-relation 5214. Up to 304 conditions per place. [2021-03-26 04:43:42,861 INFO L142 LiptonReduction]: Number of co-enabled transitions 110 [2021-03-26 04:43:42,867 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:42,867 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:42,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-26 04:43:42,868 INFO L480 AbstractCegarLoop]: Abstraction has has 199 places, 173 transitions, 2570 flow [2021-03-26 04:43:42,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 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) [2021-03-26 04:43:42,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:42,868 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:43,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable164 [2021-03-26 04:43:43,090 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:43,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:43,090 INFO L82 PathProgramCache]: Analyzing trace with hash 127076995, now seen corresponding path program 1 times [2021-03-26 04:43:43,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:43,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611080073] [2021-03-26 04:43:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:43,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:43:43,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:43:43,156 INFO L142 QuantifierPusher]: treesize reduction 2467, result has 7.0 percent of original size [2021-03-26 04:43:43,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-03-26 04:43:43,217 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:43,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:43,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:43,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:43,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611080073] [2021-03-26 04:43:43,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043835278] [2021-03-26 04:43:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:43,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-26 04:43:43,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:43,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:43,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,304 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:43,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,305 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:43,306 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,306 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,307 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:43,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:43,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:43,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:43,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,324 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:43,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:43,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 04:43:43,327 INFO L142 QuantifierPusher]: treesize reduction 21, result has 77.9 percent of original size [2021-03-26 04:43:43,328 INFO L147 QuantifierPusher]: treesize reduction 8, result has 88.4 percent of original size 61 [2021-03-26 04:43:43,328 INFO L142 QuantifierPusher]: treesize reduction 8, result has 88.4 percent of original size [2021-03-26 04:43:43,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-26 04:43:43,385 INFO L142 QuantifierPusher]: treesize reduction 13, result has 84.3 percent of original size [2021-03-26 04:43:43,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:43,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:43:43,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,388 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:43,389 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,389 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:43,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:43,426 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.3 percent of original size [2021-03-26 04:43:43,427 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:43,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:43:43,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,429 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 04:43:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-03-26 04:43:43,431 INFO L142 QuantifierPusher]: treesize reduction 124, result has 45.9 percent of original size [2021-03-26 04:43:43,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,432 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:43,433 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:43:43,434 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,435 INFO L142 QuantifierPusher]: treesize reduction 120, result has 31.4 percent of original size [2021-03-26 04:43:43,436 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:43,437 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,437 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,437 INFO L142 QuantifierPusher]: treesize reduction 36, result has 28.0 percent of original size [2021-03-26 04:43:43,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:43,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:43,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:43,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:43,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:43,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:43,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:43,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,464 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:43,464 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:43,465 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,466 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:43,466 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:43,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:43,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:43,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:43,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-03-26 04:43:43,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482490083] [2021-03-26 04:43:43,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:43,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:43,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:43,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:43,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 63 [2021-03-26 04:43:43,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 173 transitions, 2570 flow. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 12 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) [2021-03-26 04:43:43,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:43,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 63 [2021-03-26 04:43:43,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:43,620 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-26 04:43:43,837 INFO L129 PetriNetUnfolder]: 202/535 cut-off events. [2021-03-26 04:43:43,837 INFO L130 PetriNetUnfolder]: For 26521/26555 co-relation queries the response was YES. [2021-03-26 04:43:43,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5886 conditions, 535 events. 202/535 cut-off events. For 26521/26555 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3413 event pairs, 14 based on Foata normal form. 10/543 useless extension candidates. Maximal degree in co-relation 5604. Up to 406 conditions per place. [2021-03-26 04:43:43,843 INFO L132 encePairwiseOnDemand]: 54/63 looper letters, 153 selfloop transitions, 18 changer transitions 4/180 dead transitions. [2021-03-26 04:43:43,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 180 transitions, 3121 flow [2021-03-26 04:43:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:43:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:43:43,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 123 transitions. [2021-03-26 04:43:43,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2789115646258503 [2021-03-26 04:43:43,849 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 123 transitions. [2021-03-26 04:43:43,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 123 transitions. [2021-03-26 04:43:43,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:43,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 123 transitions. [2021-03-26 04:43:43,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:43,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:43,850 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 63.0) internal successors, (504), 8 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:43,850 INFO L185 Difference]: Start difference. First operand has 199 places, 173 transitions, 2570 flow. Second operand 7 states and 123 transitions. [2021-03-26 04:43:43,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 180 transitions, 3121 flow [2021-03-26 04:43:43,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 180 transitions, 3047 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 04:43:43,960 INFO L241 Difference]: Finished difference. Result has 205 places, 172 transitions, 2549 flow [2021-03-26 04:43:43,961 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2549, PETRI_PLACES=205, PETRI_TRANSITIONS=172} [2021-03-26 04:43:43,961 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 189 predicate places. [2021-03-26 04:43:43,961 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:43,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 172 transitions, 2549 flow [2021-03-26 04:43:43,961 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 172 transitions, 2549 flow [2021-03-26 04:43:43,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 172 transitions, 2549 flow [2021-03-26 04:43:44,031 INFO L129 PetriNetUnfolder]: 197/524 cut-off events. [2021-03-26 04:43:44,031 INFO L130 PetriNetUnfolder]: For 24670/24693 co-relation queries the response was YES. [2021-03-26 04:43:44,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5362 conditions, 524 events. 197/524 cut-off events. For 24670/24693 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3386 event pairs, 19 based on Foata normal form. 8/528 useless extension candidates. Maximal degree in co-relation 5270. Up to 303 conditions per place. [2021-03-26 04:43:44,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:43:44,044 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:44,044 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:44,045 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-26 04:43:44,045 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 172 transitions, 2549 flow [2021-03-26 04:43:44,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 12 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) [2021-03-26 04:43:44,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:44,045 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:44,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2021-03-26 04:43:44,260 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:44,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:44,260 INFO L82 PathProgramCache]: Analyzing trace with hash 895890049, now seen corresponding path program 1 times [2021-03-26 04:43:44,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:44,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680152627] [2021-03-26 04:43:44,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:44,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:44,291 INFO L142 QuantifierPusher]: treesize reduction 53, result has 51.4 percent of original size [2021-03-26 04:43:44,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:44,328 INFO L142 QuantifierPusher]: treesize reduction 85, result has 19.8 percent of original size [2021-03-26 04:43:44,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:44,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:44,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680152627] [2021-03-26 04:43:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951092286] [2021-03-26 04:43:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:44,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 04:43:44,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:44,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:44,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,411 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:44,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:44,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:44,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,413 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:44,413 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:44,414 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,427 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:43:44,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:44,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:44,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:44,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:44,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,429 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:44,431 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:44,431 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:44,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:44,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-26 04:43:44,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-26 04:43:44,449 INFO L142 QuantifierPusher]: treesize reduction 804, result has 6.4 percent of original size [2021-03-26 04:43:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:44,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:44,475 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.7 percent of original size [2021-03-26 04:43:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 04:43:44,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:44,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 04:43:44,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 120 [2021-03-26 04:43:44,478 INFO L142 QuantifierPusher]: treesize reduction 183, result has 20.8 percent of original size [2021-03-26 04:43:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:44,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:44,481 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:44,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:44,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:44,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:44,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:43:44,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467103671] [2021-03-26 04:43:44,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:43:44,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:44,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:43:44,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:43:44,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 63 [2021-03-26 04:43:44,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 172 transitions, 2549 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) [2021-03-26 04:43:44,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:44,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 63 [2021-03-26 04:43:44,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:44,819 INFO L129 PetriNetUnfolder]: 202/527 cut-off events. [2021-03-26 04:43:44,819 INFO L130 PetriNetUnfolder]: For 27684/27719 co-relation queries the response was YES. [2021-03-26 04:43:44,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5805 conditions, 527 events. 202/527 cut-off events. For 27684/27719 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3303 event pairs, 17 based on Foata normal form. 12/538 useless extension candidates. Maximal degree in co-relation 5614. Up to 309 conditions per place. [2021-03-26 04:43:44,824 INFO L132 encePairwiseOnDemand]: 53/63 looper letters, 124 selfloop transitions, 41 changer transitions 0/189 dead transitions. [2021-03-26 04:43:44,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 189 transitions, 3365 flow [2021-03-26 04:43:44,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:43:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:43:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 182 transitions. [2021-03-26 04:43:44,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32098765432098764 [2021-03-26 04:43:44,825 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 182 transitions. [2021-03-26 04:43:44,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 182 transitions. [2021-03-26 04:43:44,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:44,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 182 transitions. [2021-03-26 04:43:44,826 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) [2021-03-26 04:43:44,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:44,826 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 63.0) internal successors, (630), 10 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:44,826 INFO L185 Difference]: Start difference. First operand has 202 places, 172 transitions, 2549 flow. Second operand 9 states and 182 transitions. [2021-03-26 04:43:44,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 189 transitions, 3365 flow [2021-03-26 04:43:44,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 189 transitions, 3233 flow, removed 37 selfloop flow, removed 7 redundant places. [2021-03-26 04:43:44,918 INFO L241 Difference]: Finished difference. Result has 204 places, 173 transitions, 2526 flow [2021-03-26 04:43:44,918 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=2419, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2526, PETRI_PLACES=204, PETRI_TRANSITIONS=173} [2021-03-26 04:43:44,918 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 188 predicate places. [2021-03-26 04:43:44,918 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:44,918 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 173 transitions, 2526 flow [2021-03-26 04:43:44,919 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 173 transitions, 2526 flow [2021-03-26 04:43:44,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 173 transitions, 2526 flow [2021-03-26 04:43:44,969 INFO L129 PetriNetUnfolder]: 199/524 cut-off events. [2021-03-26 04:43:44,969 INFO L130 PetriNetUnfolder]: For 24499/24557 co-relation queries the response was YES. [2021-03-26 04:43:44,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5422 conditions, 524 events. 199/524 cut-off events. For 24499/24557 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3379 event pairs, 16 based on Foata normal form. 2/522 useless extension candidates. Maximal degree in co-relation 5312. Up to 305 conditions per place. [2021-03-26 04:43:44,975 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:43:45,138 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:45,138 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:45,138 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 220 [2021-03-26 04:43:45,139 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 173 transitions, 2537 flow [2021-03-26 04:43:45,139 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) [2021-03-26 04:43:45,139 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:45,139 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:45,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:45,339 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:45,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:45,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1529348049, now seen corresponding path program 2 times [2021-03-26 04:43:45,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:45,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058911934] [2021-03-26 04:43:45,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:45,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:45,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:43:45,381 INFO L142 QuantifierPusher]: treesize reduction 141, result has 23.8 percent of original size [2021-03-26 04:43:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:45,416 INFO L142 QuantifierPusher]: treesize reduction 1157, result has 13.7 percent of original size [2021-03-26 04:43:45,416 INFO L147 QuantifierPusher]: treesize reduction 22, result has 88.0 percent of original size 161 [2021-03-26 04:43:45,485 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:45,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:45,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:45,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058911934] [2021-03-26 04:43:45,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455263744] [2021-03-26 04:43:45,505 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 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 [2021-03-26 04:43:45,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:45,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:45,537 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 32 conjunts are in the unsatisfiable core [2021-03-26 04:43:45,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:45,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:45,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:45,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:45,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:45,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:45,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:45,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,542 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:45,542 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:45,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:45,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:45,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:45,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:45,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,559 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:45,560 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,560 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:45,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:45,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,578 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.0 percent of original size [2021-03-26 04:43:45,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:45,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:43:45,580 INFO L142 QuantifierPusher]: treesize reduction 160, result has 36.3 percent of original size [2021-03-26 04:43:45,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:45,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:45,624 INFO L142 QuantifierPusher]: treesize reduction 13, result has 91.5 percent of original size [2021-03-26 04:43:45,624 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:45,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-26 04:43:45,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,627 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:43:45,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-26 04:43:45,632 INFO L142 QuantifierPusher]: treesize reduction 1087, result has 18.1 percent of original size [2021-03-26 04:43:45,632 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,633 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:45,634 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,634 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-26 04:43:45,636 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:43:45,636 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:43:45,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,637 INFO L142 QuantifierPusher]: treesize reduction 50, result has 56.1 percent of original size [2021-03-26 04:43:45,638 INFO L147 QuantifierPusher]: treesize reduction 8, result has 86.0 percent of original size 49 [2021-03-26 04:43:45,639 INFO L147 QuantifierPusher]: treesize reduction 39, result has 76.5 percent of original size 127 [2021-03-26 04:43:45,639 INFO L142 QuantifierPusher]: treesize reduction 39, result has 76.5 percent of original size [2021-03-26 04:43:45,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 04:43:45,754 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-03-26 04:43:45,756 INFO L142 QuantifierPusher]: treesize reduction 65, result has 63.7 percent of original size [2021-03-26 04:43:45,756 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:45,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:43:45,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-03-26 04:43:45,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-03-26 04:43:45,762 INFO L142 QuantifierPusher]: treesize reduction 62, result has 72.4 percent of original size [2021-03-26 04:43:45,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,763 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:45,764 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:45,764 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,766 INFO L142 QuantifierPusher]: treesize reduction 230, result has 24.1 percent of original size [2021-03-26 04:43:45,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:45,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:45,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:45,798 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:45,799 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:45,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:45,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:45,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:45,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:45,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,804 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:45,804 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:45,805 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,806 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:45,806 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:45,806 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:45,807 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:43:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:45,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:45,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:45,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:45,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220009029] [2021-03-26 04:43:45,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 04:43:45,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:45,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 04:43:45,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-03-26 04:43:45,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-26 04:43:45,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 173 transitions, 2537 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) [2021-03-26 04:43:45,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:45,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-26 04:43:45,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:46,188 INFO L129 PetriNetUnfolder]: 203/528 cut-off events. [2021-03-26 04:43:46,188 INFO L130 PetriNetUnfolder]: For 27224/27256 co-relation queries the response was YES. [2021-03-26 04:43:46,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5955 conditions, 528 events. 203/528 cut-off events. For 27224/27256 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3322 event pairs, 18 based on Foata normal form. 10/536 useless extension candidates. Maximal degree in co-relation 5669. Up to 438 conditions per place. [2021-03-26 04:43:46,193 INFO L132 encePairwiseOnDemand]: 54/64 looper letters, 156 selfloop transitions, 11 changer transitions 3/174 dead transitions. [2021-03-26 04:43:46,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 174 transitions, 2899 flow [2021-03-26 04:43:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:43:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:43:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 113 transitions. [2021-03-26 04:43:46,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25223214285714285 [2021-03-26 04:43:46,200 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 113 transitions. [2021-03-26 04:43:46,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 113 transitions. [2021-03-26 04:43:46,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:46,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 113 transitions. [2021-03-26 04:43:46,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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) [2021-03-26 04:43:46,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:46,201 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 64.0) internal successors, (512), 8 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:46,201 INFO L185 Difference]: Start difference. First operand has 204 places, 173 transitions, 2537 flow. Second operand 7 states and 113 transitions. [2021-03-26 04:43:46,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 174 transitions, 2899 flow [2021-03-26 04:43:46,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 174 transitions, 2830 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-26 04:43:46,312 INFO L241 Difference]: Finished difference. Result has 206 places, 171 transitions, 2463 flow [2021-03-26 04:43:46,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2468, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2463, PETRI_PLACES=206, PETRI_TRANSITIONS=171} [2021-03-26 04:43:46,313 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 190 predicate places. [2021-03-26 04:43:46,313 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:46,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 171 transitions, 2463 flow [2021-03-26 04:43:46,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 171 transitions, 2463 flow [2021-03-26 04:43:46,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 171 transitions, 2463 flow [2021-03-26 04:43:46,380 INFO L129 PetriNetUnfolder]: 198/514 cut-off events. [2021-03-26 04:43:46,381 INFO L130 PetriNetUnfolder]: For 24594/24641 co-relation queries the response was YES. [2021-03-26 04:43:46,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5361 conditions, 514 events. 198/514 cut-off events. For 24594/24641 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3258 event pairs, 18 based on Foata normal form. 2/512 useless extension candidates. Maximal degree in co-relation 5270. Up to 302 conditions per place. [2021-03-26 04:43:46,387 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:43:46,394 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:46,394 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:46,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-26 04:43:46,394 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 171 transitions, 2463 flow [2021-03-26 04:43:46,395 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) [2021-03-26 04:43:46,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:46,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:46,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:46,616 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash -783676020, now seen corresponding path program 1 times [2021-03-26 04:43:46,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:46,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727414033] [2021-03-26 04:43:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:46,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:46,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,662 INFO L142 QuantifierPusher]: treesize reduction 2633, result has 17.0 percent of original size [2021-03-26 04:43:46,664 INFO L147 QuantifierPusher]: treesize reduction 434, result has 19.6 percent of original size 106 [2021-03-26 04:43:46,776 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 26 [2021-03-26 04:43:46,778 INFO L142 QuantifierPusher]: treesize reduction 7, result has 90.7 percent of original size [2021-03-26 04:43:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:43:46,844 INFO L142 QuantifierPusher]: treesize reduction 7, result has 88.7 percent of original size [2021-03-26 04:43:46,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:46,874 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:46,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:46,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:46,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727414033] [2021-03-26 04:43:46,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160496110] [2021-03-26 04:43:46,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:46,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:46,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:46,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:46,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:46,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:46,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:46,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,957 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:46,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,958 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:46,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,960 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:46,961 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:46,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:46,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:46,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,965 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:46,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,967 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:46,967 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,967 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,968 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:46,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:46,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:46,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:46,990 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-26 04:43:46,991 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:46,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:43:46,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:46,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 04:43:47,012 INFO L142 QuantifierPusher]: treesize reduction 27079, result has 0.8 percent of original size [2021-03-26 04:43:47,014 INFO L147 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size 138 [2021-03-26 04:43:47,015 INFO L142 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size [2021-03-26 04:43:47,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:43:47,113 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size [2021-03-26 04:43:47,113 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:47,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 04:43:47,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 04:43:47,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-26 04:43:47,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,127 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:47,127 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:47,127 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,128 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:47,128 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:47,128 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:47,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,130 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:47,131 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,132 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 04:43:47,133 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:43:47,133 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:43:47,133 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:47,134 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,135 INFO L142 QuantifierPusher]: treesize reduction 155, result has 25.1 percent of original size [2021-03-26 04:43:47,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:43:47,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:47,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:47,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:47,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:47,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:47,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-26 04:43:47,212 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.8 percent of original size [2021-03-26 04:43:47,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-26 04:43:47,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 04:43:47,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-03-26 04:43:47,218 INFO L142 QuantifierPusher]: treesize reduction 124, result has 49.0 percent of original size [2021-03-26 04:43:47,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,219 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:47,220 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:47,220 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,221 INFO L142 QuantifierPusher]: treesize reduction 136, result has 33.0 percent of original size [2021-03-26 04:43:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:47,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:47,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:47,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:47,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:47,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:47,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:43:47,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:47,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,250 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:43:47,251 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:47,251 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,252 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:43:47,252 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:43:47,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:47,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:47,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:47,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:47,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:47,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:47,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:47,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:47,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053405945] [2021-03-26 04:43:47,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 04:43:47,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:47,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 04:43:47,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-26 04:43:47,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 64 [2021-03-26 04:43:47,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 171 transitions, 2463 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) [2021-03-26 04:43:47,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:47,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 64 [2021-03-26 04:43:47,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:47,606 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2021-03-26 04:43:47,926 INFO L129 PetriNetUnfolder]: 205/535 cut-off events. [2021-03-26 04:43:47,926 INFO L130 PetriNetUnfolder]: For 27792/27824 co-relation queries the response was YES. [2021-03-26 04:43:47,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6016 conditions, 535 events. 205/535 cut-off events. For 27792/27824 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3401 event pairs, 18 based on Foata normal form. 10/543 useless extension candidates. Maximal degree in co-relation 5748. Up to 437 conditions per place. [2021-03-26 04:43:47,930 INFO L132 encePairwiseOnDemand]: 54/64 looper letters, 154 selfloop transitions, 19 changer transitions 4/181 dead transitions. [2021-03-26 04:43:47,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 181 transitions, 3062 flow [2021-03-26 04:43:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:43:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:43:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 164 transitions. [2021-03-26 04:43:47,931 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23295454545454544 [2021-03-26 04:43:47,931 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 164 transitions. [2021-03-26 04:43:47,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 164 transitions. [2021-03-26 04:43:47,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:47,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 164 transitions. [2021-03-26 04:43:47,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.909090909090908) internal successors, (164), 11 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:47,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 64.0) internal successors, (768), 12 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:47,933 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 64.0) internal successors, (768), 12 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:47,933 INFO L185 Difference]: Start difference. First operand has 200 places, 171 transitions, 2463 flow. Second operand 11 states and 164 transitions. [2021-03-26 04:43:47,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 181 transitions, 3062 flow [2021-03-26 04:43:48,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 181 transitions, 3028 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 04:43:48,028 INFO L241 Difference]: Finished difference. Result has 206 places, 176 transitions, 2640 flow [2021-03-26 04:43:48,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2435, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2640, PETRI_PLACES=206, PETRI_TRANSITIONS=176} [2021-03-26 04:43:48,028 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 190 predicate places. [2021-03-26 04:43:48,028 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:48,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 176 transitions, 2640 flow [2021-03-26 04:43:48,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 176 transitions, 2640 flow [2021-03-26 04:43:48,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 176 transitions, 2640 flow [2021-03-26 04:43:48,077 INFO L129 PetriNetUnfolder]: 200/519 cut-off events. [2021-03-26 04:43:48,077 INFO L130 PetriNetUnfolder]: For 25987/26021 co-relation queries the response was YES. [2021-03-26 04:43:48,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5488 conditions, 519 events. 200/519 cut-off events. For 25987/26021 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3288 event pairs, 18 based on Foata normal form. 4/519 useless extension candidates. Maximal degree in co-relation 5319. Up to 307 conditions per place. [2021-03-26 04:43:48,081 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 04:43:48,391 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:48,391 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:48,391 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 363 [2021-03-26 04:43:48,391 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 176 transitions, 2654 flow [2021-03-26 04:43:48,391 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) [2021-03-26 04:43:48,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:48,392 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:48,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable182 [2021-03-26 04:43:48,592 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:48,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:48,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2062003644, now seen corresponding path program 2 times [2021-03-26 04:43:48,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:48,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274701264] [2021-03-26 04:43:48,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:48,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:48,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,619 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size [2021-03-26 04:43:48,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:43:48,645 INFO L142 QuantifierPusher]: treesize reduction 300, result has 14.8 percent of original size [2021-03-26 04:43:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:48,675 INFO L142 QuantifierPusher]: treesize reduction 1270, result has 3.5 percent of original size [2021-03-26 04:43:48,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:43:48,699 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:48,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:48,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274701264] [2021-03-26 04:43:48,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576940067] [2021-03-26 04:43:48,718 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 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 [2021-03-26 04:43:48,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:48,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:48,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:48,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:48,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:48,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:48,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:48,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:48,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,761 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:48,761 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:48,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:48,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,765 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:48,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 04:43:48,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 549 [2021-03-26 04:43:48,770 INFO L142 QuantifierPusher]: treesize reduction 643, result has 13.7 percent of original size [2021-03-26 04:43:48,771 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-03-26 04:43:48,772 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-03-26 04:43:48,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:43:48,809 INFO L142 QuantifierPusher]: treesize reduction 7, result has 94.1 percent of original size [2021-03-26 04:43:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,810 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:48,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 04:43:48,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,812 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:48,812 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,813 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:48,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 04:43:48,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-26 04:43:48,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,856 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:48,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 04:43:48,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:43:48,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 04:43:48,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,860 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,861 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:48,861 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:48,862 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,862 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:48,862 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:48,862 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:48,863 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:48,864 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,864 INFO L142 QuantifierPusher]: treesize reduction 48, result has 61.0 percent of original size [2021-03-26 04:43:48,865 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:48,865 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,865 INFO L142 QuantifierPusher]: treesize reduction 34, result has 46.9 percent of original size [2021-03-26 04:43:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:43:48,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:48,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:43:48,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:43:48,901 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.2 percent of original size [2021-03-26 04:43:48,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:48,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 04:43:48,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-03-26 04:43:48,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-03-26 04:43:48,915 INFO L142 QuantifierPusher]: treesize reduction 46, result has 80.0 percent of original size [2021-03-26 04:43:48,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,916 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:48,917 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:48,918 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,919 INFO L142 QuantifierPusher]: treesize reduction 178, result has 43.8 percent of original size [2021-03-26 04:43:48,920 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:48,920 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,921 INFO L142 QuantifierPusher]: treesize reduction 59, result has 69.1 percent of original size [2021-03-26 04:43:48,923 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:48,924 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,924 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,925 INFO L142 QuantifierPusher]: treesize reduction 87, result has 44.2 percent of original size [2021-03-26 04:43:48,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:48,928 INFO L147 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size 23 [2021-03-26 04:43:48,930 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:48,930 INFO L147 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size 37 [2021-03-26 04:43:48,931 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-26 04:43:48,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:43:48,960 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:43:48,960 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:48,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:48,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,962 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,963 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:48,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:48,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:48,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,966 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,966 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:43:48,967 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:48,967 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,969 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:43:48,969 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:48,970 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,970 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:48,970 INFO L142 QuantifierPusher]: treesize reduction 51, result has 37.8 percent of original size [2021-03-26 04:43:48,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:48,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:48,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:48,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:48,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473629781] [2021-03-26 04:43:48,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 04:43:48,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:48,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 04:43:48,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-03-26 04:43:48,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 66 [2021-03-26 04:43:48,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 176 transitions, 2654 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) [2021-03-26 04:43:48,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:48,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 66 [2021-03-26 04:43:48,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:49,155 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2021-03-26 04:43:49,985 INFO L129 PetriNetUnfolder]: 215/575 cut-off events. [2021-03-26 04:43:49,985 INFO L130 PetriNetUnfolder]: For 31046/31078 co-relation queries the response was YES. [2021-03-26 04:43:49,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6690 conditions, 575 events. 215/575 cut-off events. For 31046/31078 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3758 event pairs, 19 based on Foata normal form. 11/584 useless extension candidates. Maximal degree in co-relation 6577. Up to 446 conditions per place. [2021-03-26 04:43:49,990 INFO L132 encePairwiseOnDemand]: 52/66 looper letters, 159 selfloop transitions, 32 changer transitions 1/196 dead transitions. [2021-03-26 04:43:49,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 196 transitions, 3714 flow [2021-03-26 04:43:49,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 04:43:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 04:43:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 204 transitions. [2021-03-26 04:43:49,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22077922077922077 [2021-03-26 04:43:49,992 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 204 transitions. [2021-03-26 04:43:49,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 204 transitions. [2021-03-26 04:43:49,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:49,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 204 transitions. [2021-03-26 04:43:49,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.571428571428571) internal successors, (204), 14 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:49,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 66.0) internal successors, (990), 15 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:49,993 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 66.0) internal successors, (990), 15 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:49,993 INFO L185 Difference]: Start difference. First operand has 204 places, 176 transitions, 2654 flow. Second operand 14 states and 204 transitions. [2021-03-26 04:43:49,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 196 transitions, 3714 flow [2021-03-26 04:43:50,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 196 transitions, 3543 flow, removed 78 selfloop flow, removed 5 redundant places. [2021-03-26 04:43:50,097 INFO L241 Difference]: Finished difference. Result has 218 places, 190 transitions, 3111 flow [2021-03-26 04:43:50,097 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=2491, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3111, PETRI_PLACES=218, PETRI_TRANSITIONS=190} [2021-03-26 04:43:50,097 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 202 predicate places. [2021-03-26 04:43:50,097 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:50,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 190 transitions, 3111 flow [2021-03-26 04:43:50,098 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 190 transitions, 3111 flow [2021-03-26 04:43:50,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 190 transitions, 3111 flow [2021-03-26 04:43:50,153 INFO L129 PetriNetUnfolder]: 210/560 cut-off events. [2021-03-26 04:43:50,153 INFO L130 PetriNetUnfolder]: For 32473/32518 co-relation queries the response was YES. [2021-03-26 04:43:50,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6327 conditions, 560 events. 210/560 cut-off events. For 32473/32518 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3693 event pairs, 17 based on Foata normal form. 4/559 useless extension candidates. Maximal degree in co-relation 6212. Up to 327 conditions per place. [2021-03-26 04:43:50,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-26 04:43:50,499 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:50,499 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:50,499 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 402 [2021-03-26 04:43:50,499 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 190 transitions, 3137 flow [2021-03-26 04:43:50,499 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) [2021-03-26 04:43:50,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:50,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:50,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:50,700 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:50,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1588284080, now seen corresponding path program 1 times [2021-03-26 04:43:50,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:50,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637599128] [2021-03-26 04:43:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:50,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:50,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:50,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:50,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:50,739 INFO L142 QuantifierPusher]: treesize reduction 2450, result has 18.8 percent of original size [2021-03-26 04:43:50,740 INFO L147 QuantifierPusher]: treesize reduction 525, result has 7.7 percent of original size 44 [2021-03-26 04:43:50,792 INFO L142 QuantifierPusher]: treesize reduction 4, result has 55.6 percent of original size [2021-03-26 04:43:50,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:50,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:50,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:50,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637599128] [2021-03-26 04:43:50,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:50,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:50,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667879346] [2021-03-26 04:43:50,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:50,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:50,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:50,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:50,798 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 68 [2021-03-26 04:43:50,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 190 transitions, 3137 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) [2021-03-26 04:43:50,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:50,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 68 [2021-03-26 04:43:50,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:50,979 INFO L129 PetriNetUnfolder]: 212/560 cut-off events. [2021-03-26 04:43:50,979 INFO L130 PetriNetUnfolder]: For 34477/34509 co-relation queries the response was YES. [2021-03-26 04:43:50,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6816 conditions, 560 events. 212/560 cut-off events. For 34477/34509 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3613 event pairs, 17 based on Foata normal form. 12/569 useless extension candidates. Maximal degree in co-relation 6696. Up to 425 conditions per place. [2021-03-26 04:43:50,983 INFO L132 encePairwiseOnDemand]: 55/68 looper letters, 166 selfloop transitions, 19 changer transitions 1/192 dead transitions. [2021-03-26 04:43:50,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 192 transitions, 3603 flow [2021-03-26 04:43:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:50,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2021-03-26 04:43:50,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2021-03-26 04:43:50,984 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 120 transitions. [2021-03-26 04:43:50,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 120 transitions. [2021-03-26 04:43:50,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:50,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 120 transitions. [2021-03-26 04:43:50,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 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) [2021-03-26 04:43:50,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:50,985 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 68.0) internal successors, (476), 7 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:50,985 INFO L185 Difference]: Start difference. First operand has 217 places, 190 transitions, 3137 flow. Second operand 6 states and 120 transitions. [2021-03-26 04:43:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 192 transitions, 3603 flow [2021-03-26 04:43:51,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 192 transitions, 3231 flow, removed 174 selfloop flow, removed 7 redundant places. [2021-03-26 04:43:51,084 INFO L241 Difference]: Finished difference. Result has 215 places, 185 transitions, 2765 flow [2021-03-26 04:43:51,084 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2717, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2765, PETRI_PLACES=215, PETRI_TRANSITIONS=185} [2021-03-26 04:43:51,084 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 199 predicate places. [2021-03-26 04:43:51,084 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:51,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 185 transitions, 2765 flow [2021-03-26 04:43:51,084 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 185 transitions, 2765 flow [2021-03-26 04:43:51,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 215 places, 185 transitions, 2765 flow [2021-03-26 04:43:51,144 INFO L129 PetriNetUnfolder]: 207/551 cut-off events. [2021-03-26 04:43:51,145 INFO L130 PetriNetUnfolder]: For 31307/31352 co-relation queries the response was YES. [2021-03-26 04:43:51,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 551 events. 207/551 cut-off events. For 31307/31352 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3604 event pairs, 17 based on Foata normal form. 4/550 useless extension candidates. Maximal degree in co-relation 5806. Up to 316 conditions per place. [2021-03-26 04:43:51,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 110 [2021-03-26 04:43:51,155 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:51,155 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:51,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 04:43:51,155 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 185 transitions, 2765 flow [2021-03-26 04:43:51,155 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) [2021-03-26 04:43:51,155 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:51,155 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:51,155 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-03-26 04:43:51,155 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:51,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:51,155 INFO L82 PathProgramCache]: Analyzing trace with hash 171463094, now seen corresponding path program 1 times [2021-03-26 04:43:51,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:51,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305426185] [2021-03-26 04:43:51,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:51,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:51,190 INFO L142 QuantifierPusher]: treesize reduction 3224, result has 22.3 percent of original size [2021-03-26 04:43:51,193 INFO L147 QuantifierPusher]: treesize reduction 88, result has 90.5 percent of original size 836 [2021-03-26 04:43:51,396 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 48 [2021-03-26 04:43:51,397 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.4 percent of original size [2021-03-26 04:43:51,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:43:51,451 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-26 04:43:51,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:51,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:51,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305426185] [2021-03-26 04:43:51,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193286171] [2021-03-26 04:43:51,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:51,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:43:51,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:51,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:51,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:51,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:51,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,536 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:51,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:51,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,538 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:51,539 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:51,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:51,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,540 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:51,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:51,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,542 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:51,543 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,544 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,544 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:51,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,566 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-26 04:43:51,566 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:51,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:43:51,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:51,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 04:43:51,600 INFO L142 QuantifierPusher]: treesize reduction 43207, result has 0.5 percent of original size [2021-03-26 04:43:51,602 INFO L147 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size 138 [2021-03-26 04:43:51,603 INFO L142 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size [2021-03-26 04:43:51,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:43:51,707 INFO L142 QuantifierPusher]: treesize reduction 10, result has 94.3 percent of original size [2021-03-26 04:43:51,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:51,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-03-26 04:43:51,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 04:43:51,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-03-26 04:43:51,719 INFO L142 QuantifierPusher]: treesize reduction 1183, result has 18.3 percent of original size [2021-03-26 04:43:51,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,721 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:51,722 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,723 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-26 04:43:51,724 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:43:51,725 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:43:51,725 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,726 INFO L142 QuantifierPusher]: treesize reduction 31, result has 87.4 percent of original size [2021-03-26 04:43:51,727 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,729 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.1 percent of original size 82 [2021-03-26 04:43:51,729 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:51,730 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,730 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,735 INFO L142 QuantifierPusher]: treesize reduction 223, result has 42.7 percent of original size [2021-03-26 04:43:51,735 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:51,736 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,738 INFO L142 QuantifierPusher]: treesize reduction 74, result has 67.0 percent of original size [2021-03-26 04:43:51,740 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:51,741 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,742 INFO L142 QuantifierPusher]: treesize reduction 26, result has 84.5 percent of original size [2021-03-26 04:43:51,742 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:51,743 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,743 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,744 INFO L142 QuantifierPusher]: treesize reduction 69, result has 30.3 percent of original size [2021-03-26 04:43:51,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:43:51,746 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:51,746 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,747 INFO L142 QuantifierPusher]: treesize reduction 39, result has 73.1 percent of original size [2021-03-26 04:43:51,749 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:43:51,750 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,751 INFO L142 QuantifierPusher]: treesize reduction 47, result has 57.3 percent of original size [2021-03-26 04:43:51,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:51,754 INFO L147 QuantifierPusher]: treesize reduction 7, result has 70.8 percent of original size 17 [2021-03-26 04:43:51,754 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-26 04:43:51,755 INFO L147 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size 47 [2021-03-26 04:43:51,757 INFO L147 QuantifierPusher]: treesize reduction 10, result has 87.5 percent of original size 70 [2021-03-26 04:43:51,758 INFO L147 QuantifierPusher]: treesize reduction 10, result has 87.5 percent of original size 70 [2021-03-26 04:43:51,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:51,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:51,784 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:51,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:51,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:51,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:51,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:51,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:51,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,791 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:51,791 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:51,792 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,793 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:51,794 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:51,795 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,795 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:51,796 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:43:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:51,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:51,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:51,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:43:51,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969205641] [2021-03-26 04:43:51,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:43:51,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:51,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:43:51,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:43:51,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 68 [2021-03-26 04:43:51,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 185 transitions, 2765 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) [2021-03-26 04:43:51,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:51,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 68 [2021-03-26 04:43:51,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:52,229 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-03-26 04:43:52,483 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-03-26 04:43:52,532 INFO L129 PetriNetUnfolder]: 215/575 cut-off events. [2021-03-26 04:43:52,532 INFO L130 PetriNetUnfolder]: For 35030/35040 co-relation queries the response was YES. [2021-03-26 04:43:52,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6757 conditions, 575 events. 215/575 cut-off events. For 35030/35040 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3753 event pairs, 17 based on Foata normal form. 2/574 useless extension candidates. Maximal degree in co-relation 6635. Up to 458 conditions per place. [2021-03-26 04:43:52,537 INFO L132 encePairwiseOnDemand]: 54/68 looper letters, 165 selfloop transitions, 27 changer transitions 2/198 dead transitions. [2021-03-26 04:43:52,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 198 transitions, 3667 flow [2021-03-26 04:43:52,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:43:52,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:43:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 167 transitions. [2021-03-26 04:43:52,538 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2232620320855615 [2021-03-26 04:43:52,538 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 167 transitions. [2021-03-26 04:43:52,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 167 transitions. [2021-03-26 04:43:52,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:52,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 167 transitions. [2021-03-26 04:43:52,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.181818181818182) internal successors, (167), 11 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) [2021-03-26 04:43:52,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 68.0) internal successors, (816), 12 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:52,541 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 68.0) internal successors, (816), 12 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:52,541 INFO L185 Difference]: Start difference. First operand has 215 places, 185 transitions, 2765 flow. Second operand 11 states and 167 transitions. [2021-03-26 04:43:52,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 198 transitions, 3667 flow [2021-03-26 04:43:52,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 198 transitions, 3615 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-26 04:43:52,645 INFO L241 Difference]: Finished difference. Result has 224 places, 192 transitions, 3149 flow [2021-03-26 04:43:52,646 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=2715, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3149, PETRI_PLACES=224, PETRI_TRANSITIONS=192} [2021-03-26 04:43:52,646 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 208 predicate places. [2021-03-26 04:43:52,646 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:52,646 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 192 transitions, 3149 flow [2021-03-26 04:43:52,646 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 192 transitions, 3149 flow [2021-03-26 04:43:52,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 192 transitions, 3149 flow [2021-03-26 04:43:52,727 INFO L129 PetriNetUnfolder]: 210/569 cut-off events. [2021-03-26 04:43:52,728 INFO L130 PetriNetUnfolder]: For 36174/36216 co-relation queries the response was YES. [2021-03-26 04:43:52,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6356 conditions, 569 events. 210/569 cut-off events. For 36174/36216 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3823 event pairs, 21 based on Foata normal form. 2/566 useless extension candidates. Maximal degree in co-relation 6237. Up to 325 conditions per place. [2021-03-26 04:43:52,736 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 04:43:53,026 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:43:53,026 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:53,026 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 380 [2021-03-26 04:43:53,026 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 192 transitions, 3152 flow [2021-03-26 04:43:53,026 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) [2021-03-26 04:43:53,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:53,026 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:53,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable202 [2021-03-26 04:43:53,229 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:53,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:53,229 INFO L82 PathProgramCache]: Analyzing trace with hash 297294617, now seen corresponding path program 1 times [2021-03-26 04:43:53,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:53,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289932575] [2021-03-26 04:43:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:53,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,264 INFO L142 QuantifierPusher]: treesize reduction 192, result has 18.3 percent of original size [2021-03-26 04:43:53,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 04:43:53,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:53,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289932575] [2021-03-26 04:43:53,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733806423] [2021-03-26 04:43:53,284 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 [2021-03-26 04:43:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:53,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-26 04:43:53,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,343 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:53,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:53,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,346 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:53,346 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:53,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:43:53,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:43:53,351 INFO L142 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-03-26 04:43:53,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:53,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:43:53,371 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.5 percent of original size [2021-03-26 04:43:53,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:53,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:53,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 04:43:53,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:53,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 04:43:53,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 04:43:53,376 INFO L142 QuantifierPusher]: treesize reduction 141, result has 19.4 percent of original size [2021-03-26 04:43:53,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:53,381 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:53,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:53,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-03-26 04:43:53,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901445440] [2021-03-26 04:43:53,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:43:53,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:53,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:43:53,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:43:53,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 70 [2021-03-26 04:43:53,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 192 transitions, 3152 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) [2021-03-26 04:43:53,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:53,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 70 [2021-03-26 04:43:53,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:53,590 INFO L129 PetriNetUnfolder]: 214/562 cut-off events. [2021-03-26 04:43:53,590 INFO L130 PetriNetUnfolder]: For 37754/37810 co-relation queries the response was YES. [2021-03-26 04:43:53,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6758 conditions, 562 events. 214/562 cut-off events. For 37754/37810 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3604 event pairs, 16 based on Foata normal form. 16/578 useless extension candidates. Maximal degree in co-relation 6634. Up to 354 conditions per place. [2021-03-26 04:43:53,595 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 154 selfloop transitions, 16 changer transitions 0/197 dead transitions. [2021-03-26 04:43:53,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 197 transitions, 3612 flow [2021-03-26 04:43:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:43:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:43:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2021-03-26 04:43:53,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3314285714285714 [2021-03-26 04:43:53,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 116 transitions. [2021-03-26 04:43:53,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 116 transitions. [2021-03-26 04:43:53,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:53,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 116 transitions. [2021-03-26 04:43:53,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 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) [2021-03-26 04:43:53,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:53,597 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:53,597 INFO L185 Difference]: Start difference. First operand has 221 places, 192 transitions, 3152 flow. Second operand 5 states and 116 transitions. [2021-03-26 04:43:53,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 197 transitions, 3612 flow [2021-03-26 04:43:53,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 197 transitions, 3239 flow, removed 168 selfloop flow, removed 6 redundant places. [2021-03-26 04:43:53,704 INFO L241 Difference]: Finished difference. Result has 220 places, 195 transitions, 2872 flow [2021-03-26 04:43:53,704 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2779, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2872, PETRI_PLACES=220, PETRI_TRANSITIONS=195} [2021-03-26 04:43:53,704 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 204 predicate places. [2021-03-26 04:43:53,704 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:53,704 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 195 transitions, 2872 flow [2021-03-26 04:43:53,704 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 195 transitions, 2872 flow [2021-03-26 04:43:53,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 195 transitions, 2872 flow [2021-03-26 04:43:53,760 INFO L129 PetriNetUnfolder]: 212/556 cut-off events. [2021-03-26 04:43:53,760 INFO L130 PetriNetUnfolder]: For 35054/35096 co-relation queries the response was YES. [2021-03-26 04:43:53,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6158 conditions, 556 events. 212/556 cut-off events. For 35054/35096 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3635 event pairs, 21 based on Foata normal form. 2/554 useless extension candidates. Maximal degree in co-relation 5949. Up to 317 conditions per place. [2021-03-26 04:43:53,765 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 04:43:53,772 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:53,772 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:53,773 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 69 [2021-03-26 04:43:53,773 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 195 transitions, 2872 flow [2021-03-26 04:43:53,773 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) [2021-03-26 04:43:53,773 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:53,773 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:53,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213 [2021-03-26 04:43:53,980 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:53,980 INFO L82 PathProgramCache]: Analyzing trace with hash 131364408, now seen corresponding path program 1 times [2021-03-26 04:43:53,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:53,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487841804] [2021-03-26 04:43:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:53,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:53,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:53,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:53,995 INFO L142 QuantifierPusher]: treesize reduction 129, result has 14.6 percent of original size [2021-03-26 04:43:53,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:43:54,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:54,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:54,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487841804] [2021-03-26 04:43:54,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:43:54,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:43:54,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423666501] [2021-03-26 04:43:54,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:43:54,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:54,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:43:54,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:43:54,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 70 [2021-03-26 04:43:54,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 195 transitions, 2872 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) [2021-03-26 04:43:54,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:54,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 70 [2021-03-26 04:43:54,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:54,214 INFO L129 PetriNetUnfolder]: 216/548 cut-off events. [2021-03-26 04:43:54,214 INFO L130 PetriNetUnfolder]: For 36362/36394 co-relation queries the response was YES. [2021-03-26 04:43:54,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6633 conditions, 548 events. 216/548 cut-off events. For 36362/36394 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3415 event pairs, 18 based on Foata normal form. 9/555 useless extension candidates. Maximal degree in co-relation 6509. Up to 429 conditions per place. [2021-03-26 04:43:54,220 INFO L132 encePairwiseOnDemand]: 58/70 looper letters, 169 selfloop transitions, 18 changer transitions 0/193 dead transitions. [2021-03-26 04:43:54,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 193 transitions, 3271 flow [2021-03-26 04:43:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:43:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:43:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 117 transitions. [2021-03-26 04:43:54,223 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2785714285714286 [2021-03-26 04:43:54,223 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 117 transitions. [2021-03-26 04:43:54,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 117 transitions. [2021-03-26 04:43:54,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:54,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 117 transitions. [2021-03-26 04:43:54,223 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) [2021-03-26 04:43:54,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:54,224 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 70.0) internal successors, (490), 7 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:54,224 INFO L185 Difference]: Start difference. First operand has 220 places, 195 transitions, 2872 flow. Second operand 6 states and 117 transitions. [2021-03-26 04:43:54,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 193 transitions, 3271 flow [2021-03-26 04:43:54,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 193 transitions, 3221 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-03-26 04:43:54,324 INFO L241 Difference]: Finished difference. Result has 216 places, 191 transitions, 2827 flow [2021-03-26 04:43:54,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=2791, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2827, PETRI_PLACES=216, PETRI_TRANSITIONS=191} [2021-03-26 04:43:54,324 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 200 predicate places. [2021-03-26 04:43:54,324 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:54,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 216 places, 191 transitions, 2827 flow [2021-03-26 04:43:54,325 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 216 places, 191 transitions, 2827 flow [2021-03-26 04:43:54,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 216 places, 191 transitions, 2827 flow [2021-03-26 04:43:54,379 INFO L129 PetriNetUnfolder]: 211/539 cut-off events. [2021-03-26 04:43:54,380 INFO L130 PetriNetUnfolder]: For 35017/35064 co-relation queries the response was YES. [2021-03-26 04:43:54,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6072 conditions, 539 events. 211/539 cut-off events. For 35017/35064 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3457 event pairs, 16 based on Foata normal form. 2/537 useless extension candidates. Maximal degree in co-relation 5953. Up to 313 conditions per place. [2021-03-26 04:43:54,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 04:43:54,564 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:54,564 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:43:54,564 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 240 [2021-03-26 04:43:54,565 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 191 transitions, 2837 flow [2021-03-26 04:43:54,565 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) [2021-03-26 04:43:54,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:54,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:54,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-03-26 04:43:54,565 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:54,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:54,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1677363825, now seen corresponding path program 1 times [2021-03-26 04:43:54,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:54,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197981100] [2021-03-26 04:43:54,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:54,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,594 INFO L142 QuantifierPusher]: treesize reduction 3128, result has 22.2 percent of original size [2021-03-26 04:43:54,598 INFO L147 QuantifierPusher]: treesize reduction 729, result has 18.2 percent of original size 162 [2021-03-26 04:43:54,770 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 25 [2021-03-26 04:43:54,771 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 04:43:54,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:54,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:54,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:54,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197981100] [2021-03-26 04:43:54,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98497694] [2021-03-26 04:43:54,798 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 [2021-03-26 04:43:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:54,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:43:54,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,838 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:54,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:54,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:54,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:54,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,842 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:54,843 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:54,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:54,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 04:43:54,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:43:54,847 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-26 04:43:54,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:43:54,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:43:54,883 INFO L142 QuantifierPusher]: treesize reduction 3, result has 98.6 percent of original size [2021-03-26 04:43:54,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 04:43:54,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 04:43:54,900 INFO L142 QuantifierPusher]: treesize reduction 203, result has 26.2 percent of original size [2021-03-26 04:43:54,900 INFO L147 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size 33 [2021-03-26 04:43:54,901 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-26 04:43:54,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:43:54,916 INFO L142 QuantifierPusher]: treesize reduction 4, result has 95.2 percent of original size [2021-03-26 04:43:54,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:43:54,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:54,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:43:54,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:43:54,919 INFO L142 QuantifierPusher]: treesize reduction 183, result has 15.7 percent of original size [2021-03-26 04:43:54,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:54,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:54,921 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:54,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:54,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:54,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:54,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 04:43:54,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828762213] [2021-03-26 04:43:54,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:43:54,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:54,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:43:54,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:43:54,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-26 04:43:54,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 191 transitions, 2837 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) [2021-03-26 04:43:54,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:54,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-26 04:43:54,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:55,160 INFO L129 PetriNetUnfolder]: 218/557 cut-off events. [2021-03-26 04:43:55,160 INFO L130 PetriNetUnfolder]: For 38004/38014 co-relation queries the response was YES. [2021-03-26 04:43:55,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6788 conditions, 557 events. 218/557 cut-off events. For 38004/38014 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3491 event pairs, 16 based on Foata normal form. 3/558 useless extension candidates. Maximal degree in co-relation 6664. Up to 428 conditions per place. [2021-03-26 04:43:55,164 INFO L132 encePairwiseOnDemand]: 59/71 looper letters, 174 selfloop transitions, 19 changer transitions 0/199 dead transitions. [2021-03-26 04:43:55,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 199 transitions, 3537 flow [2021-03-26 04:43:55,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:43:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:43:55,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2021-03-26 04:43:55,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25880281690140844 [2021-03-26 04:43:55,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 147 transitions. [2021-03-26 04:43:55,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 147 transitions. [2021-03-26 04:43:55,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:55,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 147 transitions. [2021-03-26 04:43:55,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 18.375) internal successors, (147), 8 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:55,166 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) [2021-03-26 04:43:55,166 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) [2021-03-26 04:43:55,166 INFO L185 Difference]: Start difference. First operand has 216 places, 191 transitions, 2837 flow. Second operand 8 states and 147 transitions. [2021-03-26 04:43:55,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 199 transitions, 3537 flow [2021-03-26 04:43:55,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 199 transitions, 3499 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 04:43:55,272 INFO L241 Difference]: Finished difference. Result has 220 places, 193 transitions, 2927 flow [2021-03-26 04:43:55,273 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=2799, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2927, PETRI_PLACES=220, PETRI_TRANSITIONS=193} [2021-03-26 04:43:55,273 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 204 predicate places. [2021-03-26 04:43:55,273 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:55,273 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 193 transitions, 2927 flow [2021-03-26 04:43:55,273 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 193 transitions, 2927 flow [2021-03-26 04:43:55,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 220 places, 193 transitions, 2927 flow [2021-03-26 04:43:55,358 INFO L129 PetriNetUnfolder]: 213/555 cut-off events. [2021-03-26 04:43:55,358 INFO L130 PetriNetUnfolder]: For 35663/35710 co-relation queries the response was YES. [2021-03-26 04:43:55,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 555 events. 213/555 cut-off events. For 35663/35710 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3622 event pairs, 21 based on Foata normal form. 2/553 useless extension candidates. Maximal degree in co-relation 6015. Up to 320 conditions per place. [2021-03-26 04:43:55,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 04:43:55,375 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:55,375 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:55,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-03-26 04:43:55,375 INFO L480 AbstractCegarLoop]: Abstraction has has 220 places, 193 transitions, 2927 flow [2021-03-26 04:43:55,375 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) [2021-03-26 04:43:55,375 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:55,375 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:55,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:43:55,592 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:55,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:55,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1881815505, now seen corresponding path program 1 times [2021-03-26 04:43:55,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:55,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223966592] [2021-03-26 04:43:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:55,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:43:55,621 INFO L142 QuantifierPusher]: treesize reduction 46, result has 31.3 percent of original size [2021-03-26 04:43:55,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:43:55,631 INFO L142 QuantifierPusher]: treesize reduction 43, result has 34.8 percent of original size [2021-03-26 04:43:55,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:55,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:43:55,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:55,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:55,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223966592] [2021-03-26 04:43:55,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428986321] [2021-03-26 04:43:55,662 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 [2021-03-26 04:43:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:55,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 24 conjunts are in the unsatisfiable core [2021-03-26 04:43:55,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:55,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:55,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:43:55,728 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 04:43:55,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:55,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:43:55,763 INFO L142 QuantifierPusher]: treesize reduction 25, result has 80.8 percent of original size [2021-03-26 04:43:55,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 04:43:55,764 INFO L147 QuantifierPusher]: treesize reduction 40, result has 61.9 percent of original size 65 [2021-03-26 04:43:55,765 INFO L142 QuantifierPusher]: treesize reduction 40, result has 62.3 percent of original size [2021-03-26 04:43:55,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:43:55,766 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.8 percent of original size [2021-03-26 04:43:55,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:55,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:55,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 231 [2021-03-26 04:43:55,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 350 [2021-03-26 04:43:55,812 INFO L142 QuantifierPusher]: treesize reduction 1572, result has 7.5 percent of original size [2021-03-26 04:43:55,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 04:43:55,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 04:43:55,867 INFO L142 QuantifierPusher]: treesize reduction 25, result has 86.0 percent of original size [2021-03-26 04:43:55,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 04:43:55,869 INFO L147 QuantifierPusher]: treesize reduction 40, result has 74.0 percent of original size 114 [2021-03-26 04:43:55,869 INFO L142 QuantifierPusher]: treesize reduction 40, result has 74.2 percent of original size [2021-03-26 04:43:55,870 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-03-26 04:43:55,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-03-26 04:43:55,872 INFO L142 QuantifierPusher]: treesize reduction 109, result has 56.7 percent of original size [2021-03-26 04:43:55,873 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:55,874 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,875 INFO L142 QuantifierPusher]: treesize reduction 90, result has 63.9 percent of original size [2021-03-26 04:43:55,875 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:55,876 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,876 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,877 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.4 percent of original size [2021-03-26 04:43:55,877 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:55,878 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,878 INFO L142 QuantifierPusher]: treesize reduction 30, result has 77.1 percent of original size [2021-03-26 04:43:55,879 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:55,880 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:55,881 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-26 04:43:55,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:55,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:43:55,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:55,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:55,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:55,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:43:55,902 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:43:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:55,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:55,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:55,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:43:55,918 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:43:55,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:55,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:55,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:55,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:55,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625471836] [2021-03-26 04:43:55,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:43:55,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:55,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:43:55,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:43:55,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 71 [2021-03-26 04:43:55,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 193 transitions, 2927 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) [2021-03-26 04:43:55,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:55,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 71 [2021-03-26 04:43:55,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:56,713 INFO L129 PetriNetUnfolder]: 222/557 cut-off events. [2021-03-26 04:43:56,713 INFO L130 PetriNetUnfolder]: For 38892/38924 co-relation queries the response was YES. [2021-03-26 04:43:56,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6965 conditions, 557 events. 222/557 cut-off events. For 38892/38924 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3462 event pairs, 8 based on Foata normal form. 16/571 useless extension candidates. Maximal degree in co-relation 6840. Up to 334 conditions per place. [2021-03-26 04:43:56,718 INFO L132 encePairwiseOnDemand]: 53/71 looper letters, 163 selfloop transitions, 55 changer transitions 2/225 dead transitions. [2021-03-26 04:43:56,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 225 transitions, 4992 flow [2021-03-26 04:43:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 04:43:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 04:43:56,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 282 transitions. [2021-03-26 04:43:56,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23363711681855842 [2021-03-26 04:43:56,719 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 282 transitions. [2021-03-26 04:43:56,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 282 transitions. [2021-03-26 04:43:56,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:56,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 282 transitions. [2021-03-26 04:43:56,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.58823529411765) internal successors, (282), 17 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:56,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 71.0) internal successors, (1278), 18 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:56,721 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 71.0) internal successors, (1278), 18 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:56,721 INFO L185 Difference]: Start difference. First operand has 220 places, 193 transitions, 2927 flow. Second operand 17 states and 282 transitions. [2021-03-26 04:43:56,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 225 transitions, 4992 flow [2021-03-26 04:43:56,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 225 transitions, 4806 flow, removed 81 selfloop flow, removed 7 redundant places. [2021-03-26 04:43:56,828 INFO L241 Difference]: Finished difference. Result has 226 places, 191 transitions, 3090 flow [2021-03-26 04:43:56,829 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=2758, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3090, PETRI_PLACES=226, PETRI_TRANSITIONS=191} [2021-03-26 04:43:56,829 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 210 predicate places. [2021-03-26 04:43:56,829 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:56,829 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 191 transitions, 3090 flow [2021-03-26 04:43:56,829 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 191 transitions, 3090 flow [2021-03-26 04:43:56,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 191 transitions, 3090 flow [2021-03-26 04:43:56,885 INFO L129 PetriNetUnfolder]: 217/547 cut-off events. [2021-03-26 04:43:56,886 INFO L130 PetriNetUnfolder]: For 35261/35308 co-relation queries the response was YES. [2021-03-26 04:43:56,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6347 conditions, 547 events. 217/547 cut-off events. For 35261/35308 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3477 event pairs, 15 based on Foata normal form. 2/545 useless extension candidates. Maximal degree in co-relation 6085. Up to 328 conditions per place. [2021-03-26 04:43:56,891 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:43:56,896 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:56,896 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:43:56,897 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 04:43:56,897 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 191 transitions, 3090 flow [2021-03-26 04:43:56,897 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) [2021-03-26 04:43:56,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:56,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:57,099 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-03-26 04:43:57,100 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:57,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:57,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1346287075, now seen corresponding path program 1 times [2021-03-26 04:43:57,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:57,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495297527] [2021-03-26 04:43:57,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:57,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:57,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,122 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.4 percent of original size [2021-03-26 04:43:57,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:43:57,152 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.9 percent of original size [2021-03-26 04:43:57,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-26 04:43:57,171 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.9 percent of original size [2021-03-26 04:43:57,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:57,187 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:57,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:57,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:57,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495297527] [2021-03-26 04:43:57,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213412122] [2021-03-26 04:43:57,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:43:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:57,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 04:43:57,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:57,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:57,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:57,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:57,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:57,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:57,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,246 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:57,246 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:57,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 04:43:57,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,250 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:43:57,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 04:43:57,251 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-26 04:43:57,252 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,267 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,268 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,268 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:43:57,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:57,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:43:57,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:43:57,295 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.0 percent of original size [2021-03-26 04:43:57,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:57,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:43:57,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:57,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 04:43:57,300 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.4 percent of original size [2021-03-26 04:43:57,300 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-26 04:43:57,301 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-26 04:43:57,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:43:57,362 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-26 04:43:57,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:57,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 04:43:57,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:43:57,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 04:43:57,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,367 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:43:57,367 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,368 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,368 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:57,368 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,369 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:43:57,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,370 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 04:43:57,370 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,371 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,371 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:43:57,371 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,371 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:43:57,372 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:57,372 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,372 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,373 INFO L142 QuantifierPusher]: treesize reduction 116, result has 44.5 percent of original size [2021-03-26 04:43:57,374 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:43:57,374 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,374 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,374 INFO L142 QuantifierPusher]: treesize reduction 102, result has 12.1 percent of original size [2021-03-26 04:43:57,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:43:57,375 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size 25 [2021-03-26 04:43:57,376 INFO L147 QuantifierPusher]: treesize reduction 7, result has 88.1 percent of original size 52 [2021-03-26 04:43:57,376 INFO L142 QuantifierPusher]: treesize reduction 7, result has 88.1 percent of original size [2021-03-26 04:43:57,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:43:57,406 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.4 percent of original size [2021-03-26 04:43:57,406 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:57,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:43:57,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,408 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 161 [2021-03-26 04:43:57,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-03-26 04:43:57,410 INFO L142 QuantifierPusher]: treesize reduction 46, result has 78.1 percent of original size [2021-03-26 04:43:57,410 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,411 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:57,412 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:57,412 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,413 INFO L142 QuantifierPusher]: treesize reduction 159, result has 42.6 percent of original size [2021-03-26 04:43:57,413 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:43:57,414 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,414 INFO L142 QuantifierPusher]: treesize reduction 89, result has 23.9 percent of original size [2021-03-26 04:43:57,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:57,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:57,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:57,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:57,454 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:57,454 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:57,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:57,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:57,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:57,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:57,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,459 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:57,459 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,459 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,460 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:57,460 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:57,460 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,460 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:57,461 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:43:57,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:57,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:57,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:57,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:57,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552869478] [2021-03-26 04:43:57,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 04:43:57,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:57,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 04:43:57,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-26 04:43:57,484 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 71 [2021-03-26 04:43:57,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 191 transitions, 3090 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) [2021-03-26 04:43:57,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:57,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 71 [2021-03-26 04:43:57,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:58,025 INFO L129 PetriNetUnfolder]: 226/566 cut-off events. [2021-03-26 04:43:58,025 INFO L130 PetriNetUnfolder]: For 38878/38888 co-relation queries the response was YES. [2021-03-26 04:43:58,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7132 conditions, 566 events. 226/566 cut-off events. For 38878/38888 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3526 event pairs, 18 based on Foata normal form. 7/571 useless extension candidates. Maximal degree in co-relation 7006. Up to 465 conditions per place. [2021-03-26 04:43:58,030 INFO L132 encePairwiseOnDemand]: 59/71 looper letters, 177 selfloop transitions, 22 changer transitions 3/206 dead transitions. [2021-03-26 04:43:58,030 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 206 transitions, 4012 flow [2021-03-26 04:43:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:43:58,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:43:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 170 transitions. [2021-03-26 04:43:58,031 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2176696542893726 [2021-03-26 04:43:58,031 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 170 transitions. [2021-03-26 04:43:58,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 170 transitions. [2021-03-26 04:43:58,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:43:58,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 170 transitions. [2021-03-26 04:43:58,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 11 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) [2021-03-26 04:43:58,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 71.0) internal successors, (852), 12 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:58,032 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 71.0) internal successors, (852), 12 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:43:58,032 INFO L185 Difference]: Start difference. First operand has 224 places, 191 transitions, 3090 flow. Second operand 11 states and 170 transitions. [2021-03-26 04:43:58,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 206 transitions, 4012 flow [2021-03-26 04:43:58,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 206 transitions, 3806 flow, removed 41 selfloop flow, removed 13 redundant places. [2021-03-26 04:43:58,130 INFO L241 Difference]: Finished difference. Result has 225 places, 199 transitions, 3230 flow [2021-03-26 04:43:58,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=2894, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3230, PETRI_PLACES=225, PETRI_TRANSITIONS=199} [2021-03-26 04:43:58,131 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 209 predicate places. [2021-03-26 04:43:58,131 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:43:58,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 199 transitions, 3230 flow [2021-03-26 04:43:58,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 199 transitions, 3230 flow [2021-03-26 04:43:58,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 199 transitions, 3230 flow [2021-03-26 04:43:58,190 INFO L129 PetriNetUnfolder]: 221/556 cut-off events. [2021-03-26 04:43:58,190 INFO L130 PetriNetUnfolder]: For 36250/36290 co-relation queries the response was YES. [2021-03-26 04:43:58,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6464 conditions, 556 events. 221/556 cut-off events. For 36250/36290 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3543 event pairs, 16 based on Foata normal form. 6/558 useless extension candidates. Maximal degree in co-relation 6358. Up to 335 conditions per place. [2021-03-26 04:43:58,195 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:43:58,481 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:43:58,481 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:43:58,481 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 350 [2021-03-26 04:43:58,481 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 199 transitions, 3242 flow [2021-03-26 04:43:58,481 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) [2021-03-26 04:43:58,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:43:58,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:43:58,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable221 [2021-03-26 04:43:58,688 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:43:58,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:43:58,688 INFO L82 PathProgramCache]: Analyzing trace with hash -554212706, now seen corresponding path program 2 times [2021-03-26 04:43:58,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:43:58,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534409176] [2021-03-26 04:43:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:43:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:43:58,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:58,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:58,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:58,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:58,720 INFO L142 QuantifierPusher]: treesize reduction 3510, result has 15.3 percent of original size [2021-03-26 04:43:58,722 INFO L147 QuantifierPusher]: treesize reduction 129, result has 79.6 percent of original size 504 [2021-03-26 04:43:58,899 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2021-03-26 04:43:58,900 INFO L142 QuantifierPusher]: treesize reduction 11, result has 81.0 percent of original size [2021-03-26 04:43:58,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:43:58,940 INFO L142 QuantifierPusher]: treesize reduction 9, result has 73.5 percent of original size [2021-03-26 04:43:58,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:43:58,972 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:43:58,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:43:58,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:58,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:43:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:58,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534409176] [2021-03-26 04:43:58,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2345504] [2021-03-26 04:43:58,993 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 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 [2021-03-26 04:43:59,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:43:59,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:43:59,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 04:43:59,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:43:59,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:43:59,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:59,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:59,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:59,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:43:59,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,037 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:43:59,038 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:43:59,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:43:59,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:43:59,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:43:59,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,041 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:59,041 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,042 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:43:59,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:43:59,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,062 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-26 04:43:59,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:43:59,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:43:59,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:43:59,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 04:43:59,082 INFO L142 QuantifierPusher]: treesize reduction 43207, result has 0.5 percent of original size [2021-03-26 04:43:59,084 INFO L147 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size 138 [2021-03-26 04:43:59,084 INFO L142 QuantifierPusher]: treesize reduction 68, result has 67.0 percent of original size [2021-03-26 04:43:59,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:43:59,182 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.7 percent of original size [2021-03-26 04:43:59,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:43:59,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-03-26 04:43:59,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-03-26 04:43:59,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-03-26 04:43:59,190 INFO L142 QuantifierPusher]: treesize reduction 214, result has 51.7 percent of original size [2021-03-26 04:43:59,190 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,192 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:43:59,192 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:59,193 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,195 INFO L142 QuantifierPusher]: treesize reduction 238, result has 41.2 percent of original size [2021-03-26 04:43:59,196 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:43:59,196 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,198 INFO L142 QuantifierPusher]: treesize reduction 82, result has 65.0 percent of original size [2021-03-26 04:43:59,198 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:43:59,199 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,200 INFO L142 QuantifierPusher]: treesize reduction 69, result has 66.7 percent of original size [2021-03-26 04:43:59,201 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:43:59,202 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,202 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,203 INFO L142 QuantifierPusher]: treesize reduction 103, result has 40.1 percent of original size [2021-03-26 04:43:59,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:43:59,206 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 04:43:59,208 INFO L147 QuantifierPusher]: treesize reduction 8, result has 82.2 percent of original size 37 [2021-03-26 04:43:59,210 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 04:43:59,210 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size 56 [2021-03-26 04:43:59,211 INFO L142 QuantifierPusher]: treesize reduction 8, result has 87.5 percent of original size [2021-03-26 04:43:59,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:43:59,270 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:43:59,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:59,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:59,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,272 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:43:59,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:43:59,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:43:59,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,276 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,277 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 04:43:59,277 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:59,277 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,279 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:43:59,279 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:43:59,280 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,281 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-26 04:43:59,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:43:59,317 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:43:59,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:59,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:59,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,320 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:43:59,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:43:59,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:43:59,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,324 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:43:59,324 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:59,324 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,325 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:43:59,325 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:43:59,326 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:43:59,327 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:43:59,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:43:59,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:43:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:43:59,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:43:59,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-03-26 04:43:59,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316391939] [2021-03-26 04:43:59,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-26 04:43:59,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:43:59,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-26 04:43:59,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-26 04:43:59,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 73 [2021-03-26 04:43:59,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 199 transitions, 3242 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) [2021-03-26 04:43:59,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:43:59,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 73 [2021-03-26 04:43:59,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:43:59,981 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2021-03-26 04:44:00,284 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-03-26 04:44:00,325 INFO L129 PetriNetUnfolder]: 227/577 cut-off events. [2021-03-26 04:44:00,326 INFO L130 PetriNetUnfolder]: For 38469/38501 co-relation queries the response was YES. [2021-03-26 04:44:00,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7218 conditions, 577 events. 227/577 cut-off events. For 38469/38501 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3654 event pairs, 17 based on Foata normal form. 12/587 useless extension candidates. Maximal degree in co-relation 7109. Up to 470 conditions per place. [2021-03-26 04:44:00,330 INFO L132 encePairwiseOnDemand]: 60/73 looper letters, 181 selfloop transitions, 19 changer transitions 3/207 dead transitions. [2021-03-26 04:44:00,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 207 transitions, 3978 flow [2021-03-26 04:44:00,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:44:00,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:44:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-26 04:44:00,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2191780821917808 [2021-03-26 04:44:00,331 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-26 04:44:00,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-26 04:44:00,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:00,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-26 04:44:00,332 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) [2021-03-26 04:44:00,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:00,332 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 73.0) internal successors, (803), 11 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:00,332 INFO L185 Difference]: Start difference. First operand has 223 places, 199 transitions, 3242 flow. Second operand 10 states and 160 transitions. [2021-03-26 04:44:00,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 207 transitions, 3978 flow [2021-03-26 04:44:00,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 207 transitions, 3694 flow, removed 133 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:00,439 INFO L241 Difference]: Finished difference. Result has 230 places, 200 transitions, 3131 flow [2021-03-26 04:44:00,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=2956, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3131, PETRI_PLACES=230, PETRI_TRANSITIONS=200} [2021-03-26 04:44:00,439 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 214 predicate places. [2021-03-26 04:44:00,439 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:00,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 200 transitions, 3131 flow [2021-03-26 04:44:00,440 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 200 transitions, 3131 flow [2021-03-26 04:44:00,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 200 transitions, 3131 flow [2021-03-26 04:44:00,509 INFO L129 PetriNetUnfolder]: 222/563 cut-off events. [2021-03-26 04:44:00,509 INFO L130 PetriNetUnfolder]: For 37228/37259 co-relation queries the response was YES. [2021-03-26 04:44:00,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6577 conditions, 563 events. 222/563 cut-off events. For 37228/37259 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3616 event pairs, 17 based on Foata normal form. 8/567 useless extension candidates. Maximal degree in co-relation 6293. Up to 334 conditions per place. [2021-03-26 04:44:00,515 INFO L142 LiptonReduction]: Number of co-enabled transitions 112 [2021-03-26 04:44:00,693 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:00,693 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:44:00,693 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-03-26 04:44:00,693 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 200 transitions, 3133 flow [2021-03-26 04:44:00,693 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) [2021-03-26 04:44:00,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:00,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:00,907 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable233 [2021-03-26 04:44:00,908 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:00,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:00,908 INFO L82 PathProgramCache]: Analyzing trace with hash -827288190, now seen corresponding path program 1 times [2021-03-26 04:44:00,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:00,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880186431] [2021-03-26 04:44:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:00,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:00,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:00,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:00,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:00,929 INFO L142 QuantifierPusher]: treesize reduction 34, result has 62.2 percent of original size [2021-03-26 04:44:00,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:44:00,965 INFO L142 QuantifierPusher]: treesize reduction 50, result has 61.8 percent of original size [2021-03-26 04:44:00,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 04:44:01,023 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:01,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:01,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:01,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:01,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880186431] [2021-03-26 04:44:01,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992945032] [2021-03-26 04:44:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 04:44:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:01,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:44:01,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:01,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:01,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:01,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:01,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:01,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:01,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,097 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:44:01,097 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:44:01,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:01,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-03-26 04:44:01,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-26 04:44:01,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-03-26 04:44:01,116 INFO L142 QuantifierPusher]: treesize reduction 264, result has 16.5 percent of original size [2021-03-26 04:44:01,117 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:01,117 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,118 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:01,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:01,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:44:01,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:44:01,143 INFO L142 QuantifierPusher]: treesize reduction 3, result has 97.0 percent of original size [2021-03-26 04:44:01,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:01,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:44:01,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:01,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-03-26 04:44:01,147 INFO L142 QuantifierPusher]: treesize reduction 214, result has 41.4 percent of original size [2021-03-26 04:44:01,148 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-26 04:44:01,149 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-26 04:44:01,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:44:01,293 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-03-26 04:44:01,294 INFO L142 QuantifierPusher]: treesize reduction 10, result has 94.3 percent of original size [2021-03-26 04:44:01,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:01,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-03-26 04:44:01,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-03-26 04:44:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-03-26 04:44:01,302 INFO L142 QuantifierPusher]: treesize reduction 330, result has 43.5 percent of original size [2021-03-26 04:44:01,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,305 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.9 percent of original size 71 [2021-03-26 04:44:01,305 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,306 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:01,306 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,307 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,307 INFO L142 QuantifierPusher]: treesize reduction 49, result has 49.0 percent of original size [2021-03-26 04:44:01,308 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:44:01,309 INFO L147 QuantifierPusher]: treesize reduction 32, result has 5.9 percent of original size 2 [2021-03-26 04:44:01,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,310 INFO L142 QuantifierPusher]: treesize reduction 39, result has 83.2 percent of original size [2021-03-26 04:44:01,311 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 7 disjuncts [2021-03-26 04:44:01,311 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,314 INFO L142 QuantifierPusher]: treesize reduction 306, result has 44.1 percent of original size [2021-03-26 04:44:01,316 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:01,316 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,318 INFO L142 QuantifierPusher]: treesize reduction 134, result has 49.0 percent of original size [2021-03-26 04:44:01,318 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:44:01,319 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,320 INFO L142 QuantifierPusher]: treesize reduction 50, result has 70.2 percent of original size [2021-03-26 04:44:01,320 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:01,321 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,321 INFO L142 QuantifierPusher]: treesize reduction 66, result has 50.0 percent of original size [2021-03-26 04:44:01,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:01,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:01,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:44:01,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:01,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:01,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:01,356 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:44:01,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:01,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:01,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,358 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:01,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:01,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,362 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:44:01,362 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:01,363 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,363 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:44:01,364 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:01,364 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:01,365 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-26 04:44:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:01,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:01,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:01,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:44:01,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267528018] [2021-03-26 04:44:01,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:44:01,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:01,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:44:01,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:44:01,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-26 04:44:01,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 200 transitions, 3133 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) [2021-03-26 04:44:01,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:01,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-26 04:44:01,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:01,940 INFO L129 PetriNetUnfolder]: 230/578 cut-off events. [2021-03-26 04:44:01,940 INFO L130 PetriNetUnfolder]: For 40736/40746 co-relation queries the response was YES. [2021-03-26 04:44:01,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7403 conditions, 578 events. 230/578 cut-off events. For 40736/40746 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3617 event pairs, 17 based on Foata normal form. 2/578 useless extension candidates. Maximal degree in co-relation 7272. Up to 468 conditions per place. [2021-03-26 04:44:01,947 INFO L132 encePairwiseOnDemand]: 60/74 looper letters, 176 selfloop transitions, 27 changer transitions 2/209 dead transitions. [2021-03-26 04:44:01,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 209 transitions, 3999 flow [2021-03-26 04:44:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:44:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:44:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 160 transitions. [2021-03-26 04:44:01,949 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21621621621621623 [2021-03-26 04:44:01,949 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 160 transitions. [2021-03-26 04:44:01,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 160 transitions. [2021-03-26 04:44:01,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:01,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 160 transitions. [2021-03-26 04:44:01,949 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) [2021-03-26 04:44:01,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:01,950 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:01,950 INFO L185 Difference]: Start difference. First operand has 228 places, 200 transitions, 3133 flow. Second operand 10 states and 160 transitions. [2021-03-26 04:44:01,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 209 transitions, 3999 flow [2021-03-26 04:44:02,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 209 transitions, 3851 flow, removed 64 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:02,066 INFO L241 Difference]: Finished difference. Result has 234 places, 204 transitions, 3378 flow [2021-03-26 04:44:02,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2987, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3378, PETRI_PLACES=234, PETRI_TRANSITIONS=204} [2021-03-26 04:44:02,066 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 218 predicate places. [2021-03-26 04:44:02,066 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:02,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 204 transitions, 3378 flow [2021-03-26 04:44:02,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 204 transitions, 3378 flow [2021-03-26 04:44:02,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 204 transitions, 3378 flow [2021-03-26 04:44:02,144 INFO L129 PetriNetUnfolder]: 225/570 cut-off events. [2021-03-26 04:44:02,144 INFO L130 PetriNetUnfolder]: For 41446/41486 co-relation queries the response was YES. [2021-03-26 04:44:02,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6895 conditions, 570 events. 225/570 cut-off events. For 41446/41486 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3660 event pairs, 19 based on Foata normal form. 6/572 useless extension candidates. Maximal degree in co-relation 6632. Up to 340 conditions per place. [2021-03-26 04:44:02,150 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 04:44:02,155 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:02,155 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:02,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-03-26 04:44:02,156 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 204 transitions, 3378 flow [2021-03-26 04:44:02,156 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) [2021-03-26 04:44:02,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:02,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:02,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable243 [2021-03-26 04:44:02,356 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:02,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:02,357 INFO L82 PathProgramCache]: Analyzing trace with hash 869725972, now seen corresponding path program 1 times [2021-03-26 04:44:02,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:02,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23629154] [2021-03-26 04:44:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:02,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:02,385 INFO L142 QuantifierPusher]: treesize reduction 109, result has 24.3 percent of original size [2021-03-26 04:44:02,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:02,399 INFO L142 QuantifierPusher]: treesize reduction 128, result has 16.3 percent of original size [2021-03-26 04:44:02,399 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-26 04:44:02,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:02,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23629154] [2021-03-26 04:44:02,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372212580] [2021-03-26 04:44:02,429 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 [2021-03-26 04:44:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:02,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 04:44:02,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:02,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:02,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,488 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:02,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:02,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:02,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,490 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:02,490 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,491 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:02,491 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:02,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,506 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:02,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:02,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:02,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:02,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:02,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,509 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:02,510 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,510 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:02,510 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:02,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-03-26 04:44:02,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 570 [2021-03-26 04:44:02,538 INFO L142 QuantifierPusher]: treesize reduction 6891, result has 1.7 percent of original size [2021-03-26 04:44:02,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 04:44:02,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 04:44:02,627 INFO L142 QuantifierPusher]: treesize reduction 9, result has 92.6 percent of original size [2021-03-26 04:44:02,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 04:44:02,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:02,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-03-26 04:44:02,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:44:02,630 INFO L142 QuantifierPusher]: treesize reduction 55, result has 46.6 percent of original size [2021-03-26 04:44:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:02,635 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:02,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:02,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:02,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:02,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:02,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345531060] [2021-03-26 04:44:02,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:02,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:02,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:02,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:02,641 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 74 [2021-03-26 04:44:02,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 204 transitions, 3378 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) [2021-03-26 04:44:02,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:02,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 74 [2021-03-26 04:44:02,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:03,085 INFO L129 PetriNetUnfolder]: 229/569 cut-off events. [2021-03-26 04:44:03,085 INFO L130 PetriNetUnfolder]: For 43385/43395 co-relation queries the response was YES. [2021-03-26 04:44:03,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7404 conditions, 569 events. 229/569 cut-off events. For 43385/43395 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3490 event pairs, 6 based on Foata normal form. 7/574 useless extension candidates. Maximal degree in co-relation 7271. Up to 341 conditions per place. [2021-03-26 04:44:03,090 INFO L132 encePairwiseOnDemand]: 58/74 looper letters, 171 selfloop transitions, 51 changer transitions 1/228 dead transitions. [2021-03-26 04:44:03,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 228 transitions, 4644 flow [2021-03-26 04:44:03,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:44:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:44:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 184 transitions. [2021-03-26 04:44:03,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24864864864864866 [2021-03-26 04:44:03,092 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 184 transitions. [2021-03-26 04:44:03,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 184 transitions. [2021-03-26 04:44:03,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:03,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 184 transitions. [2021-03-26 04:44:03,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 18.4) internal successors, (184), 10 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) [2021-03-26 04:44:03,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:03,093 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:03,093 INFO L185 Difference]: Start difference. First operand has 232 places, 204 transitions, 3378 flow. Second operand 10 states and 184 transitions. [2021-03-26 04:44:03,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 228 transitions, 4644 flow [2021-03-26 04:44:03,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 228 transitions, 4259 flow, removed 173 selfloop flow, removed 8 redundant places. [2021-03-26 04:44:03,215 INFO L241 Difference]: Finished difference. Result has 232 places, 202 transitions, 3077 flow [2021-03-26 04:44:03,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2975, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3077, PETRI_PLACES=232, PETRI_TRANSITIONS=202} [2021-03-26 04:44:03,216 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 216 predicate places. [2021-03-26 04:44:03,216 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:03,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 202 transitions, 3077 flow [2021-03-26 04:44:03,216 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 202 transitions, 3077 flow [2021-03-26 04:44:03,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 202 transitions, 3077 flow [2021-03-26 04:44:03,298 INFO L129 PetriNetUnfolder]: 224/556 cut-off events. [2021-03-26 04:44:03,298 INFO L130 PetriNetUnfolder]: For 40083/40119 co-relation queries the response was YES. [2021-03-26 04:44:03,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6554 conditions, 556 events. 224/556 cut-off events. For 40083/40119 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3512 event pairs, 16 based on Foata normal form. 2/554 useless extension candidates. Maximal degree in co-relation 6253. Up to 327 conditions per place. [2021-03-26 04:44:03,303 INFO L142 LiptonReduction]: Number of co-enabled transitions 114 [2021-03-26 04:44:03,309 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:03,309 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:03,309 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 93 [2021-03-26 04:44:03,309 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 202 transitions, 3077 flow [2021-03-26 04:44:03,309 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) [2021-03-26 04:44:03,309 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:03,309 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:03,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:03,510 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:03,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:03,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1297937093, now seen corresponding path program 1 times [2021-03-26 04:44:03,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:03,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157593318] [2021-03-26 04:44:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:03,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:03,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:03,543 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-03-26 04:44:03,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:44:03,553 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-26 04:44:03,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:03,576 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-03-26 04:44:03,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:03,597 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-03-26 04:44:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:03,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:03,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157593318] [2021-03-26 04:44:03,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43387890] [2021-03-26 04:44:03,620 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 [2021-03-26 04:44:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:03,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 04:44:03,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:03,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:03,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:03,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:03,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,678 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:03,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:03,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,680 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:03,681 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,682 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:03,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,700 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:03,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,701 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:03,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,703 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:03,703 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,704 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:03,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,723 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-26 04:44:03,724 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:03,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:44:03,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:03,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-03-26 04:44:03,728 INFO L142 QuantifierPusher]: treesize reduction 214, result has 36.9 percent of original size [2021-03-26 04:44:03,729 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size 112 [2021-03-26 04:44:03,730 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.3 percent of original size [2021-03-26 04:44:03,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:44:03,871 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2021-03-26 04:44:03,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:03,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:03,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:03,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:03,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,877 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:03,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 398 [2021-03-26 04:44:03,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 760 [2021-03-26 04:44:03,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 761 [2021-03-26 04:44:03,890 INFO L142 QuantifierPusher]: treesize reduction 6889, result has 2.8 percent of original size [2021-03-26 04:44:03,890 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,892 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:03,892 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:44:03,893 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,894 INFO L142 QuantifierPusher]: treesize reduction 151, result has 57.5 percent of original size [2021-03-26 04:44:03,895 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:44:03,896 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,897 INFO L142 QuantifierPusher]: treesize reduction 149, result has 47.5 percent of original size [2021-03-26 04:44:03,898 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:03,898 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,899 INFO L142 QuantifierPusher]: treesize reduction 98, result has 57.6 percent of original size [2021-03-26 04:44:03,901 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:03,902 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,903 INFO L142 QuantifierPusher]: treesize reduction 104, result has 31.6 percent of original size [2021-03-26 04:44:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:03,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:03,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:03,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:03,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:03,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:03,945 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:44:03,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:03,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:03,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,948 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:03,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:03,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:44:03,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,952 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 04:44:03,952 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:03,953 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,953 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:44:03,953 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:03,954 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,955 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:44:03,955 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:03,956 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,957 INFO L142 QuantifierPusher]: treesize reduction 44, result has 41.3 percent of original size [2021-03-26 04:44:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:03,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:03,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-26 04:44:03,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:03,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:03,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:03,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:03,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:04,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:04,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:04,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:04,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:04,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:04,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:04,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:04,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:04,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:04,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:04,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958255247] [2021-03-26 04:44:04,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:04,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:04,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:04,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 74 [2021-03-26 04:44:04,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 202 transitions, 3077 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) [2021-03-26 04:44:04,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:04,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 74 [2021-03-26 04:44:04,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:04,572 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-03-26 04:44:04,872 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2021-03-26 04:44:05,162 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2021-03-26 04:44:05,295 INFO L129 PetriNetUnfolder]: 238/635 cut-off events. [2021-03-26 04:44:05,295 INFO L130 PetriNetUnfolder]: For 47143/47143 co-relation queries the response was YES. [2021-03-26 04:44:05,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7947 conditions, 635 events. 238/635 cut-off events. For 47143/47143 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4219 event pairs, 6 based on Foata normal form. 3/636 useless extension candidates. Maximal degree in co-relation 7816. Up to 366 conditions per place. [2021-03-26 04:44:05,301 INFO L132 encePairwiseOnDemand]: 58/74 looper letters, 196 selfloop transitions, 67 changer transitions 7/274 dead transitions. [2021-03-26 04:44:05,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 274 transitions, 6101 flow [2021-03-26 04:44:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 04:44:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 04:44:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 239 transitions. [2021-03-26 04:44:05,302 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2153153153153153 [2021-03-26 04:44:05,302 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 239 transitions. [2021-03-26 04:44:05,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 239 transitions. [2021-03-26 04:44:05,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:05,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 239 transitions. [2021-03-26 04:44:05,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 15 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:05,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 74.0) internal successors, (1184), 16 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:05,303 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 74.0) internal successors, (1184), 16 states have internal predecessors, (1184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:05,303 INFO L185 Difference]: Start difference. First operand has 232 places, 202 transitions, 3077 flow. Second operand 15 states and 239 transitions. [2021-03-26 04:44:05,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 274 transitions, 6101 flow [2021-03-26 04:44:05,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 274 transitions, 5954 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:05,427 INFO L241 Difference]: Finished difference. Result has 245 places, 214 transitions, 3650 flow [2021-03-26 04:44:05,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2976, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3650, PETRI_PLACES=245, PETRI_TRANSITIONS=214} [2021-03-26 04:44:05,427 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 229 predicate places. [2021-03-26 04:44:05,427 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:05,428 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 245 places, 214 transitions, 3650 flow [2021-03-26 04:44:05,428 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 245 places, 214 transitions, 3650 flow [2021-03-26 04:44:05,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 244 places, 214 transitions, 3650 flow [2021-03-26 04:44:05,499 INFO L129 PetriNetUnfolder]: 231/621 cut-off events. [2021-03-26 04:44:05,499 INFO L130 PetriNetUnfolder]: For 51078/51122 co-relation queries the response was YES. [2021-03-26 04:44:05,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7546 conditions, 621 events. 231/621 cut-off events. For 51078/51122 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4212 event pairs, 24 based on Foata normal form. 2/617 useless extension candidates. Maximal degree in co-relation 7265. Up to 357 conditions per place. [2021-03-26 04:44:05,505 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 04:44:05,922 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 04:44:06,072 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 04:44:06,253 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2021-03-26 04:44:06,437 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2021-03-26 04:44:06,501 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:06,501 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 04:44:06,501 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1074 [2021-03-26 04:44:06,501 INFO L480 AbstractCegarLoop]: Abstraction has has 244 places, 214 transitions, 3696 flow [2021-03-26 04:44:06,502 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) [2021-03-26 04:44:06,502 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:06,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:06,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable255 [2021-03-26 04:44:06,715 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:06,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1415464899, now seen corresponding path program 1 times [2021-03-26 04:44:06,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:06,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278394420] [2021-03-26 04:44:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:06,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:06,735 INFO L142 QuantifierPusher]: treesize reduction 95, result has 5.9 percent of original size [2021-03-26 04:44:06,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:06,742 INFO L142 QuantifierPusher]: treesize reduction 133, result has 25.7 percent of original size [2021-03-26 04:44:06,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:44:06,776 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-26 04:44:06,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:06,798 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 04:44:06,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:06,819 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:06,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:06,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:06,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278394420] [2021-03-26 04:44:06,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390465578] [2021-03-26 04:44:06,842 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 [2021-03-26 04:44:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:06,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-26 04:44:06,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:06,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:06,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:06,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,896 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:06,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:06,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,898 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:06,898 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,898 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,899 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:06,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,925 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:06,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:06,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,927 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:06,928 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,928 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,928 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:06,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:06,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:06,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:06,959 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.4 percent of original size [2021-03-26 04:44:06,959 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:44:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,961 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:06,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:06,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:06,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:44:06,963 INFO L142 QuantifierPusher]: treesize reduction 23, result has 80.3 percent of original size [2021-03-26 04:44:06,964 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-26 04:44:06,965 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-26 04:44:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 04:44:07,018 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.8 percent of original size [2021-03-26 04:44:07,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:07,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-03-26 04:44:07,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-03-26 04:44:07,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-03-26 04:44:07,024 INFO L142 QuantifierPusher]: treesize reduction 214, result has 47.4 percent of original size [2021-03-26 04:44:07,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,026 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:07,031 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:07,032 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,033 INFO L142 QuantifierPusher]: treesize reduction 212, result has 36.3 percent of original size [2021-03-26 04:44:07,033 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:07,034 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,035 INFO L142 QuantifierPusher]: treesize reduction 69, result has 61.5 percent of original size [2021-03-26 04:44:07,037 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:07,037 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,038 INFO L142 QuantifierPusher]: treesize reduction 103, result has 28.5 percent of original size [2021-03-26 04:44:07,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:44:07,041 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-03-26 04:44:07,043 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 04:44:07,044 INFO L147 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size 39 [2021-03-26 04:44:07,044 INFO L142 QuantifierPusher]: treesize reduction 8, result has 83.0 percent of original size [2021-03-26 04:44:07,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:07,082 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:44:07,083 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:44:07,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:44:07,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-26 04:44:07,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:44:07,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:07,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,092 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 1] term [2021-03-26 04:44:07,092 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:07,093 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,094 INFO L147 QuantifierPusher]: treesize reduction 21, result has 66.7 percent of original size 42 [2021-03-26 04:44:07,095 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:07,095 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,096 INFO L142 QuantifierPusher]: treesize reduction 103, result has 24.3 percent of original size [2021-03-26 04:44:07,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:07,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:07,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:07,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:07,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:07,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:07,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:07,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:07,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,129 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:44:07,129 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:07,129 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,130 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:44:07,130 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:44:07,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:07,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:07,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:07,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081110672] [2021-03-26 04:44:07,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:07,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:07,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:07,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:07,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 78 [2021-03-26 04:44:07,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 214 transitions, 3696 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) [2021-03-26 04:44:07,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:07,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 78 [2021-03-26 04:44:07,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:08,468 INFO L129 PetriNetUnfolder]: 249/668 cut-off events. [2021-03-26 04:44:08,468 INFO L130 PetriNetUnfolder]: For 56162/56172 co-relation queries the response was YES. [2021-03-26 04:44:08,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9145 conditions, 668 events. 249/668 cut-off events. For 56162/56172 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4527 event pairs, 20 based on Foata normal form. 9/674 useless extension candidates. Maximal degree in co-relation 9009. Up to 482 conditions per place. [2021-03-26 04:44:08,476 INFO L132 encePairwiseOnDemand]: 69/78 looper letters, 199 selfloop transitions, 40 changer transitions 7/250 dead transitions. [2021-03-26 04:44:08,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 250 transitions, 5978 flow [2021-03-26 04:44:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-26 04:44:08,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-26 04:44:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 282 transitions. [2021-03-26 04:44:08,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1902834008097166 [2021-03-26 04:44:08,477 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 282 transitions. [2021-03-26 04:44:08,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 282 transitions. [2021-03-26 04:44:08,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:08,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 282 transitions. [2021-03-26 04:44:08,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 14.842105263157896) internal successors, (282), 19 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:08,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 78.0) internal successors, (1560), 20 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:08,479 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 78.0) internal successors, (1560), 20 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:08,479 INFO L185 Difference]: Start difference. First operand has 244 places, 214 transitions, 3696 flow. Second operand 19 states and 282 transitions. [2021-03-26 04:44:08,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 250 transitions, 5978 flow [2021-03-26 04:44:08,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 250 transitions, 5440 flow, removed 241 selfloop flow, removed 4 redundant places. [2021-03-26 04:44:08,637 INFO L241 Difference]: Finished difference. Result has 267 places, 234 transitions, 4386 flow [2021-03-26 04:44:08,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=3193, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4386, PETRI_PLACES=267, PETRI_TRANSITIONS=234} [2021-03-26 04:44:08,637 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 251 predicate places. [2021-03-26 04:44:08,637 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:08,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 267 places, 234 transitions, 4386 flow [2021-03-26 04:44:08,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 267 places, 234 transitions, 4386 flow [2021-03-26 04:44:08,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 234 transitions, 4386 flow [2021-03-26 04:44:08,717 INFO L129 PetriNetUnfolder]: 241/652 cut-off events. [2021-03-26 04:44:08,717 INFO L130 PetriNetUnfolder]: For 60173/60212 co-relation queries the response was YES. [2021-03-26 04:44:08,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8424 conditions, 652 events. 241/652 cut-off events. For 60173/60212 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4485 event pairs, 22 based on Foata normal form. 8/652 useless extension candidates. Maximal degree in co-relation 8130. Up to 374 conditions per place. [2021-03-26 04:44:08,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-26 04:44:10,045 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 04:44:10,046 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-26 04:44:10,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1409 [2021-03-26 04:44:10,046 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 232 transitions, 4380 flow [2021-03-26 04:44:10,046 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) [2021-03-26 04:44:10,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:10,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:10,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:10,246 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:10,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1307896696, now seen corresponding path program 1 times [2021-03-26 04:44:10,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:10,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518846651] [2021-03-26 04:44:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:10,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:10,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:10,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:10,300 INFO L142 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-03-26 04:44:10,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-26 04:44:10,336 INFO L142 QuantifierPusher]: treesize reduction 1788, result has 11.7 percent of original size [2021-03-26 04:44:10,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-03-26 04:44:10,388 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:10,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:10,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:10,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518846651] [2021-03-26 04:44:10,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359333857] [2021-03-26 04:44:10,409 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 [2021-03-26 04:44:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:10,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 04:44:10,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:10,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:10,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:10,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:10,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:10,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:10,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:10,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:10,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,453 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,456 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,457 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,474 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:10,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:10,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,475 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:10,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:10,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,476 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,477 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,477 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,477 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:10,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:10,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:10,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-03-26 04:44:10,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 295 [2021-03-26 04:44:10,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 683 [2021-03-26 04:44:10,519 INFO L142 QuantifierPusher]: treesize reduction 3668, result has 9.1 percent of original size [2021-03-26 04:44:10,521 INFO L147 QuantifierPusher]: treesize reduction 24, result has 93.2 percent of original size 331 [2021-03-26 04:44:10,522 INFO L142 QuantifierPusher]: treesize reduction 24, result has 93.2 percent of original size [2021-03-26 04:44:10,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 331 [2021-03-26 04:44:10,652 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-03-26 04:44:10,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:10,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 04:44:10,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:44:10,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-03-26 04:44:10,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,658 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,658 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:44:10,658 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,659 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,659 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:44:10,659 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,660 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:44:10,661 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,661 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,662 INFO L142 QuantifierPusher]: treesize reduction 57, result has 55.8 percent of original size [2021-03-26 04:44:10,662 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:10,663 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,663 INFO L142 QuantifierPusher]: treesize reduction 45, result has 49.4 percent of original size [2021-03-26 04:44:10,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:10,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:10,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 04:44:10,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-03-26 04:44:10,711 INFO L142 QuantifierPusher]: treesize reduction 9, result has 94.1 percent of original size [2021-03-26 04:44:10,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:10,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 04:44:10,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-03-26 04:44:10,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 04:44:10,716 INFO L142 QuantifierPusher]: treesize reduction 214, result has 48.1 percent of original size [2021-03-26 04:44:10,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,718 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:10,718 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:10,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,736 INFO L142 QuantifierPusher]: treesize reduction 131, result has 62.7 percent of original size [2021-03-26 04:44:10,736 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:10,737 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,739 INFO L142 QuantifierPusher]: treesize reduction 188, result has 34.0 percent of original size [2021-03-26 04:44:10,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:10,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:10,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:10,785 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:44:10,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:10,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,787 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:10,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:10,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:44:10,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,791 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,793 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 1] term [2021-03-26 04:44:10,793 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,794 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,795 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:44:10,795 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,795 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,796 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:44:10,796 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:10,797 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,797 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:10,798 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-26 04:44:10,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:10,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:10,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:10,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:10,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278452361] [2021-03-26 04:44:10,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:10,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:10,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:10,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:10,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 87 [2021-03-26 04:44:10,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 232 transitions, 4380 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) [2021-03-26 04:44:10,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:10,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 87 [2021-03-26 04:44:10,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:11,616 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2021-03-26 04:44:11,928 INFO L129 PetriNetUnfolder]: 246/667 cut-off events. [2021-03-26 04:44:11,929 INFO L130 PetriNetUnfolder]: For 61863/61863 co-relation queries the response was YES. [2021-03-26 04:44:11,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9160 conditions, 667 events. 246/667 cut-off events. For 61863/61863 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4588 event pairs, 12 based on Foata normal form. 1/665 useless extension candidates. Maximal degree in co-relation 9015. Up to 396 conditions per place. [2021-03-26 04:44:11,936 INFO L132 encePairwiseOnDemand]: 69/87 looper letters, 196 selfloop transitions, 57 changer transitions 2/259 dead transitions. [2021-03-26 04:44:11,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 259 transitions, 5789 flow [2021-03-26 04:44:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 04:44:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 04:44:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 211 transitions. [2021-03-26 04:44:11,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1865605658709107 [2021-03-26 04:44:11,937 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 211 transitions. [2021-03-26 04:44:11,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 211 transitions. [2021-03-26 04:44:11,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:11,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 211 transitions. [2021-03-26 04:44:11,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.23076923076923) internal successors, (211), 13 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:11,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:11,939 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 87.0) internal successors, (1218), 14 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:11,939 INFO L185 Difference]: Start difference. First operand has 264 places, 232 transitions, 4380 flow. Second operand 13 states and 211 transitions. [2021-03-26 04:44:11,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 259 transitions, 5789 flow [2021-03-26 04:44:12,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 259 transitions, 5305 flow, removed 235 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:12,181 INFO L241 Difference]: Finished difference. Result has 272 places, 236 transitions, 4136 flow [2021-03-26 04:44:12,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=3914, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4136, PETRI_PLACES=272, PETRI_TRANSITIONS=236} [2021-03-26 04:44:12,181 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 256 predicate places. [2021-03-26 04:44:12,181 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:12,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 236 transitions, 4136 flow [2021-03-26 04:44:12,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 236 transitions, 4136 flow [2021-03-26 04:44:12,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 271 places, 236 transitions, 4136 flow [2021-03-26 04:44:12,265 INFO L129 PetriNetUnfolder]: 241/652 cut-off events. [2021-03-26 04:44:12,265 INFO L130 PetriNetUnfolder]: For 60550/60594 co-relation queries the response was YES. [2021-03-26 04:44:12,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8338 conditions, 652 events. 241/652 cut-off events. For 60550/60594 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4542 event pairs, 26 based on Foata normal form. 2/647 useless extension candidates. Maximal degree in co-relation 7960. Up to 369 conditions per place. [2021-03-26 04:44:12,273 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 04:44:12,690 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:12,690 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:44:12,690 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 509 [2021-03-26 04:44:12,690 INFO L480 AbstractCegarLoop]: Abstraction has has 270 places, 235 transitions, 4150 flow [2021-03-26 04:44:12,690 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) [2021-03-26 04:44:12,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:12,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:12,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274,42 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:12,891 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:12,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:12,891 INFO L82 PathProgramCache]: Analyzing trace with hash -846628307, now seen corresponding path program 1 times [2021-03-26 04:44:12,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:12,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096575648] [2021-03-26 04:44:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:12,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:12,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:12,906 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 04:44:12,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:12,912 INFO L142 QuantifierPusher]: treesize reduction 151, result has 39.4 percent of original size [2021-03-26 04:44:12,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-03-26 04:44:12,956 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 04:44:12,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:12,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:12,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:12,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:12,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:12,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:12,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096575648] [2021-03-26 04:44:12,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796229405] [2021-03-26 04:44:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:44:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:13,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:13,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:13,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:13,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:13,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:13,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,024 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:13,024 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:13,025 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:13,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:13,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:13,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:13,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:13,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:13,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:13,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:13,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,042 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:13,042 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,042 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:13,042 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:13,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:13,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:13,065 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.9 percent of original size [2021-03-26 04:44:13,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:44:13,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:44:13,067 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.4 percent of original size [2021-03-26 04:44:13,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:13,137 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-26 04:44:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:13,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,138 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:13,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:44:13,139 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 04:44:13,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:13,141 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:13,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:13,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:13,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:13,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:13,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843446837] [2021-03-26 04:44:13,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:13,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:13,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:13,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:13,147 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 89 [2021-03-26 04:44:13,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 235 transitions, 4150 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) [2021-03-26 04:44:13,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:13,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 89 [2021-03-26 04:44:13,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:13,585 INFO L129 PetriNetUnfolder]: 244/647 cut-off events. [2021-03-26 04:44:13,585 INFO L130 PetriNetUnfolder]: For 60657/60667 co-relation queries the response was YES. [2021-03-26 04:44:13,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8849 conditions, 647 events. 244/647 cut-off events. For 60657/60667 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4334 event pairs, 15 based on Foata normal form. 10/653 useless extension candidates. Maximal degree in co-relation 8703. Up to 459 conditions per place. [2021-03-26 04:44:13,591 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 200 selfloop transitions, 29 changer transitions 0/234 dead transitions. [2021-03-26 04:44:13,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 234 transitions, 4741 flow [2021-03-26 04:44:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:44:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:44:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 199 transitions. [2021-03-26 04:44:13,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20326864147088866 [2021-03-26 04:44:13,592 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 199 transitions. [2021-03-26 04:44:13,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 199 transitions. [2021-03-26 04:44:13,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:13,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 199 transitions. [2021-03-26 04:44:13,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 18.09090909090909) internal successors, (199), 11 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) [2021-03-26 04:44:13,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:13,593 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:13,593 INFO L185 Difference]: Start difference. First operand has 270 places, 235 transitions, 4150 flow. Second operand 11 states and 199 transitions. [2021-03-26 04:44:13,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 234 transitions, 4741 flow [2021-03-26 04:44:13,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 234 transitions, 4615 flow, removed 30 selfloop flow, removed 11 redundant places. [2021-03-26 04:44:13,767 INFO L241 Difference]: Finished difference. Result has 266 places, 229 transitions, 3885 flow [2021-03-26 04:44:13,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3791, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3885, PETRI_PLACES=266, PETRI_TRANSITIONS=229} [2021-03-26 04:44:13,767 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 250 predicate places. [2021-03-26 04:44:13,767 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:13,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 229 transitions, 3885 flow [2021-03-26 04:44:13,767 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 229 transitions, 3885 flow [2021-03-26 04:44:13,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 229 transitions, 3885 flow [2021-03-26 04:44:13,841 INFO L129 PetriNetUnfolder]: 239/642 cut-off events. [2021-03-26 04:44:13,842 INFO L130 PetriNetUnfolder]: For 57196/57248 co-relation queries the response was YES. [2021-03-26 04:44:13,845 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7994 conditions, 642 events. 239/642 cut-off events. For 57196/57248 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 4458 event pairs, 22 based on Foata normal form. 2/635 useless extension candidates. Maximal degree in co-relation 7705. Up to 364 conditions per place. [2021-03-26 04:44:13,848 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 04:44:13,855 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:13,855 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:13,855 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-03-26 04:44:13,856 INFO L480 AbstractCegarLoop]: Abstraction has has 266 places, 229 transitions, 3885 flow [2021-03-26 04:44:13,856 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) [2021-03-26 04:44:13,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:13,856 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:14,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:14,056 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:14,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:14,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1876075890, now seen corresponding path program 1 times [2021-03-26 04:44:14,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:14,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119010543] [2021-03-26 04:44:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:14,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:14,085 INFO L142 QuantifierPusher]: treesize reduction 209, result has 10.3 percent of original size [2021-03-26 04:44:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:14,098 INFO L142 QuantifierPusher]: treesize reduction 214, result has 10.5 percent of original size [2021-03-26 04:44:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:14,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:14,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119010543] [2021-03-26 04:44:14,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251227652] [2021-03-26 04:44:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 04:44:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:14,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 18 conjunts are in the unsatisfiable core [2021-03-26 04:44:14,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:14,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:14,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:14,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,164 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:14,167 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:14,168 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,181 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:14,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:14,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:14,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:14,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:14,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,183 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:14,183 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:14,184 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:14,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-03-26 04:44:14,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-03-26 04:44:14,203 INFO L142 QuantifierPusher]: treesize reduction 581, result has 16.6 percent of original size [2021-03-26 04:44:14,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-03-26 04:44:14,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-03-26 04:44:14,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.7 percent of original size [2021-03-26 04:44:14,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:44:14,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:14,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-26 04:44:14,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 04:44:14,258 INFO L142 QuantifierPusher]: treesize reduction 60, result has 1.6 percent of original size [2021-03-26 04:44:14,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:14,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:14,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:14,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-03-26 04:44:14,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670366572] [2021-03-26 04:44:14,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:44:14,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:14,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:44:14,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:44:14,263 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 89 [2021-03-26 04:44:14,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 229 transitions, 3885 flow. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 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) [2021-03-26 04:44:14,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:14,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 89 [2021-03-26 04:44:14,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:14,647 INFO L129 PetriNetUnfolder]: 241/641 cut-off events. [2021-03-26 04:44:14,648 INFO L130 PetriNetUnfolder]: For 57478/57503 co-relation queries the response was YES. [2021-03-26 04:44:14,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8464 conditions, 641 events. 241/641 cut-off events. For 57478/57503 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4276 event pairs, 22 based on Foata normal form. 20/660 useless extension candidates. Maximal degree in co-relation 8322. Up to 367 conditions per place. [2021-03-26 04:44:14,655 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 173 selfloop transitions, 42 changer transitions 1/240 dead transitions. [2021-03-26 04:44:14,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 240 transitions, 4634 flow [2021-03-26 04:44:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:44:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:44:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2021-03-26 04:44:14,656 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.26324237560192615 [2021-03-26 04:44:14,656 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 164 transitions. [2021-03-26 04:44:14,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 164 transitions. [2021-03-26 04:44:14,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:14,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 164 transitions. [2021-03-26 04:44:14,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 7 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:14,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:14,657 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:14,657 INFO L185 Difference]: Start difference. First operand has 266 places, 229 transitions, 3885 flow. Second operand 7 states and 164 transitions. [2021-03-26 04:44:14,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 240 transitions, 4634 flow [2021-03-26 04:44:14,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 240 transitions, 4595 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:14,838 INFO L241 Difference]: Finished difference. Result has 266 places, 227 transitions, 3888 flow [2021-03-26 04:44:14,838 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3837, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3888, PETRI_PLACES=266, PETRI_TRANSITIONS=227} [2021-03-26 04:44:14,838 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 250 predicate places. [2021-03-26 04:44:14,838 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:14,838 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 227 transitions, 3888 flow [2021-03-26 04:44:14,838 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 227 transitions, 3888 flow [2021-03-26 04:44:14,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 263 places, 227 transitions, 3888 flow [2021-03-26 04:44:14,916 INFO L129 PetriNetUnfolder]: 238/641 cut-off events. [2021-03-26 04:44:14,916 INFO L130 PetriNetUnfolder]: For 56685/56729 co-relation queries the response was YES. [2021-03-26 04:44:14,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8051 conditions, 641 events. 238/641 cut-off events. For 56685/56729 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4417 event pairs, 26 based on Foata normal form. 2/636 useless extension candidates. Maximal degree in co-relation 7761. Up to 364 conditions per place. [2021-03-26 04:44:14,925 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 04:44:14,934 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:14,935 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:14,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-03-26 04:44:14,935 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 227 transitions, 3888 flow [2021-03-26 04:44:14,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 8 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) [2021-03-26 04:44:14,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:14,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:15,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable289 [2021-03-26 04:44:15,152 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:15,152 INFO L82 PathProgramCache]: Analyzing trace with hash 2034901395, now seen corresponding path program 1 times [2021-03-26 04:44:15,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:15,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580101361] [2021-03-26 04:44:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:15,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,164 INFO L142 QuantifierPusher]: treesize reduction 47, result has 11.3 percent of original size [2021-03-26 04:44:15,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:15,170 INFO L142 QuantifierPusher]: treesize reduction 181, result has 27.9 percent of original size [2021-03-26 04:44:15,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 04:44:15,209 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 04:44:15,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:15,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:15,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580101361] [2021-03-26 04:44:15,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:44:15,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:44:15,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112628718] [2021-03-26 04:44:15,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:44:15,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:15,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:44:15,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:44:15,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 89 [2021-03-26 04:44:15,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 227 transitions, 3888 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) [2021-03-26 04:44:15,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:15,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 89 [2021-03-26 04:44:15,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:15,470 INFO L129 PetriNetUnfolder]: 241/629 cut-off events. [2021-03-26 04:44:15,470 INFO L130 PetriNetUnfolder]: For 55895/55895 co-relation queries the response was YES. [2021-03-26 04:44:15,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8464 conditions, 629 events. 241/629 cut-off events. For 55895/55895 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4115 event pairs, 19 based on Foata normal form. 1/627 useless extension candidates. Maximal degree in co-relation 8321. Up to 467 conditions per place. [2021-03-26 04:44:15,477 INFO L132 encePairwiseOnDemand]: 79/89 looper letters, 199 selfloop transitions, 19 changer transitions 1/224 dead transitions. [2021-03-26 04:44:15,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 224 transitions, 4233 flow [2021-03-26 04:44:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 04:44:15,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 04:44:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2021-03-26 04:44:15,478 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2606741573033708 [2021-03-26 04:44:15,478 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 116 transitions. [2021-03-26 04:44:15,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 116 transitions. [2021-03-26 04:44:15,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:15,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 116 transitions. [2021-03-26 04:44:15,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 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) [2021-03-26 04:44:15,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:15,479 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:15,479 INFO L185 Difference]: Start difference. First operand has 263 places, 227 transitions, 3888 flow. Second operand 5 states and 116 transitions. [2021-03-26 04:44:15,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 224 transitions, 4233 flow [2021-03-26 04:44:15,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 224 transitions, 4079 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:15,644 INFO L241 Difference]: Finished difference. Result has 257 places, 221 transitions, 3544 flow [2021-03-26 04:44:15,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3525, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3544, PETRI_PLACES=257, PETRI_TRANSITIONS=221} [2021-03-26 04:44:15,644 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 241 predicate places. [2021-03-26 04:44:15,644 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:15,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 221 transitions, 3544 flow [2021-03-26 04:44:15,644 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 221 transitions, 3544 flow [2021-03-26 04:44:15,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 255 places, 221 transitions, 3544 flow [2021-03-26 04:44:15,720 INFO L129 PetriNetUnfolder]: 236/629 cut-off events. [2021-03-26 04:44:15,720 INFO L130 PetriNetUnfolder]: For 52806/52841 co-relation queries the response was YES. [2021-03-26 04:44:15,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7706 conditions, 629 events. 236/629 cut-off events. For 52806/52841 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4265 event pairs, 23 based on Foata normal form. 6/628 useless extension candidates. Maximal degree in co-relation 7419. Up to 359 conditions per place. [2021-03-26 04:44:15,728 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 04:44:15,734 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:15,734 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:15,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-26 04:44:15,734 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 221 transitions, 3544 flow [2021-03-26 04:44:15,735 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) [2021-03-26 04:44:15,735 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:15,735 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:15,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-03-26 04:44:15,735 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1498254660, now seen corresponding path program 2 times [2021-03-26 04:44:15,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:15,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953667799] [2021-03-26 04:44:15,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,758 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 04:44:15,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:44:15,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:44:15,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:15,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953667799] [2021-03-26 04:44:15,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107410146] [2021-03-26 04:44:15,790 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 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 [2021-03-26 04:44:15,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:44:15,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:44:15,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 04:44:15,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:15,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:15,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:15,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:15,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:15,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,858 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:15,859 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,859 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:15,860 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:15,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:15,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:15,886 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 04:44:15,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:15,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:44:15,887 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 04:44:15,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:15,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:15,907 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 04:44:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:15,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-03-26 04:44:15,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:15,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-03-26 04:44:15,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 451 [2021-03-26 04:44:15,918 INFO L142 QuantifierPusher]: treesize reduction 719, result has 4.5 percent of original size [2021-03-26 04:44:15,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:15,923 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:15,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:15,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:15,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:15,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 04:44:15,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817625415] [2021-03-26 04:44:15,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:44:15,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:15,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:44:15,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:44:15,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 89 [2021-03-26 04:44:15,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 221 transitions, 3544 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) [2021-03-26 04:44:15,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:15,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 89 [2021-03-26 04:44:15,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:16,343 INFO L129 PetriNetUnfolder]: 243/634 cut-off events. [2021-03-26 04:44:16,343 INFO L130 PetriNetUnfolder]: For 54752/54762 co-relation queries the response was YES. [2021-03-26 04:44:16,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8413 conditions, 634 events. 243/634 cut-off events. For 54752/54762 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4198 event pairs, 18 based on Foata normal form. 8/639 useless extension candidates. Maximal degree in co-relation 8272. Up to 368 conditions per place. [2021-03-26 04:44:16,350 INFO L132 encePairwiseOnDemand]: 70/89 looper letters, 196 selfloop transitions, 48 changer transitions 1/250 dead transitions. [2021-03-26 04:44:16,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 250 transitions, 5234 flow [2021-03-26 04:44:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 04:44:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 04:44:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 180 transitions. [2021-03-26 04:44:16,352 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2247191011235955 [2021-03-26 04:44:16,352 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 180 transitions. [2021-03-26 04:44:16,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 180 transitions. [2021-03-26 04:44:16,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:16,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 180 transitions. [2021-03-26 04:44:16,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.0) internal successors, (180), 9 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) [2021-03-26 04:44:16,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:16,354 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:16,354 INFO L185 Difference]: Start difference. First operand has 255 places, 221 transitions, 3544 flow. Second operand 9 states and 180 transitions. [2021-03-26 04:44:16,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 250 transitions, 5234 flow [2021-03-26 04:44:16,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 250 transitions, 5196 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 04:44:16,562 INFO L241 Difference]: Finished difference. Result has 261 places, 222 transitions, 3649 flow [2021-03-26 04:44:16,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3506, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3649, PETRI_PLACES=261, PETRI_TRANSITIONS=222} [2021-03-26 04:44:16,562 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 245 predicate places. [2021-03-26 04:44:16,563 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:16,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 222 transitions, 3649 flow [2021-03-26 04:44:16,563 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 222 transitions, 3649 flow [2021-03-26 04:44:16,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 222 transitions, 3649 flow [2021-03-26 04:44:16,642 INFO L129 PetriNetUnfolder]: 238/633 cut-off events. [2021-03-26 04:44:16,643 INFO L130 PetriNetUnfolder]: For 53899/53925 co-relation queries the response was YES. [2021-03-26 04:44:16,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7872 conditions, 633 events. 238/633 cut-off events. For 53899/53925 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4282 event pairs, 27 based on Foata normal form. 8/634 useless extension candidates. Maximal degree in co-relation 7584. Up to 364 conditions per place. [2021-03-26 04:44:16,650 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 04:44:16,657 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:16,657 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:16,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-26 04:44:16,658 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 222 transitions, 3649 flow [2021-03-26 04:44:16,658 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) [2021-03-26 04:44:16,658 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:16,658 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:16,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable293 [2021-03-26 04:44:16,858 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:16,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:16,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1245267047, now seen corresponding path program 1 times [2021-03-26 04:44:16,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:16,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759708271] [2021-03-26 04:44:16,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:16,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:16,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:16,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:16,891 INFO L142 QuantifierPusher]: treesize reduction 55, result has 43.3 percent of original size [2021-03-26 04:44:16,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 04:44:16,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:16,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:16,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:16,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:16,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:16,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:16,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759708271] [2021-03-26 04:44:16,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373612123] [2021-03-26 04:44:16,950 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 [2021-03-26 04:44:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:17,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 04:44:17,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:17,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:17,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,009 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:17,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:17,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,011 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:17,011 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,012 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:17,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,029 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:17,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:17,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,030 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:17,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:17,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,032 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:17,033 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,033 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,033 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:17,051 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.7 percent of original size [2021-03-26 04:44:17,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:17,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:44:17,054 INFO L142 QuantifierPusher]: treesize reduction 109, result has 42.0 percent of original size [2021-03-26 04:44:17,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:17,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:17,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 916 [2021-03-26 04:44:17,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,145 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 916 [2021-03-26 04:44:17,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 917 [2021-03-26 04:44:17,286 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 37 [2021-03-26 04:44:17,286 INFO L142 QuantifierPusher]: treesize reduction 604822, result has 0.0 percent of original size [2021-03-26 04:44:17,287 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 04:44:17,287 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:17,288 INFO L142 QuantifierPusher]: treesize reduction 117, result has 34.6 percent of original size [2021-03-26 04:44:17,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:17,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:17,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:17,290 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:17,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:17,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:17,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:17,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:17,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462608015] [2021-03-26 04:44:17,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:17,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:17,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:17,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:17,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 89 [2021-03-26 04:44:17,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 222 transitions, 3649 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) [2021-03-26 04:44:17,304 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:17,304 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 89 [2021-03-26 04:44:17,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:18,005 INFO L129 PetriNetUnfolder]: 242/638 cut-off events. [2021-03-26 04:44:18,006 INFO L130 PetriNetUnfolder]: For 56551/56582 co-relation queries the response was YES. [2021-03-26 04:44:18,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8477 conditions, 638 events. 242/638 cut-off events. For 56551/56582 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4228 event pairs, 24 based on Foata normal form. 18/655 useless extension candidates. Maximal degree in co-relation 8335. Up to 370 conditions per place. [2021-03-26 04:44:18,012 INFO L132 encePairwiseOnDemand]: 72/89 looper letters, 166 selfloop transitions, 64 changer transitions 0/254 dead transitions. [2021-03-26 04:44:18,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 254 transitions, 5141 flow [2021-03-26 04:44:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:44:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:44:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 232 transitions. [2021-03-26 04:44:18,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.236976506639428 [2021-03-26 04:44:18,013 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 232 transitions. [2021-03-26 04:44:18,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 232 transitions. [2021-03-26 04:44:18,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:18,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 232 transitions. [2021-03-26 04:44:18,013 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) [2021-03-26 04:44:18,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:18,014 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:18,014 INFO L185 Difference]: Start difference. First operand has 261 places, 222 transitions, 3649 flow. Second operand 11 states and 232 transitions. [2021-03-26 04:44:18,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 254 transitions, 5141 flow [2021-03-26 04:44:18,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 254 transitions, 5000 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:18,183 INFO L241 Difference]: Finished difference. Result has 264 places, 221 transitions, 3681 flow [2021-03-26 04:44:18,183 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3529, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3681, PETRI_PLACES=264, PETRI_TRANSITIONS=221} [2021-03-26 04:44:18,183 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 248 predicate places. [2021-03-26 04:44:18,183 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:18,183 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 264 places, 221 transitions, 3681 flow [2021-03-26 04:44:18,184 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 264 places, 221 transitions, 3681 flow [2021-03-26 04:44:18,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 264 places, 221 transitions, 3681 flow [2021-03-26 04:44:18,267 INFO L129 PetriNetUnfolder]: 235/620 cut-off events. [2021-03-26 04:44:18,267 INFO L130 PetriNetUnfolder]: For 50134/50173 co-relation queries the response was YES. [2021-03-26 04:44:18,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7727 conditions, 620 events. 235/620 cut-off events. For 50134/50173 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4160 event pairs, 27 based on Foata normal form. 6/619 useless extension candidates. Maximal degree in co-relation 7580. Up to 358 conditions per place. [2021-03-26 04:44:18,278 INFO L142 LiptonReduction]: Number of co-enabled transitions 116 [2021-03-26 04:44:18,485 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:18,485 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:44:18,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 302 [2021-03-26 04:44:18,486 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 220 transitions, 3679 flow [2021-03-26 04:44:18,486 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) [2021-03-26 04:44:18,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:18,486 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:18,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:18,686 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:18,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:18,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1247980469, now seen corresponding path program 1 times [2021-03-26 04:44:18,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:18,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346442680] [2021-03-26 04:44:18,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:18,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:18,715 INFO L142 QuantifierPusher]: treesize reduction 28, result has 55.6 percent of original size [2021-03-26 04:44:18,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:44:18,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:44:18,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:18,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:18,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346442680] [2021-03-26 04:44:18,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699199783] [2021-03-26 04:44:18,764 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 [2021-03-26 04:44:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:18,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:44:18,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:18,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:18,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:18,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,826 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:18,827 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,827 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,828 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:18,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,844 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:18,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:18,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,845 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:18,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:18,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,847 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:18,847 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,848 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:18,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:18,866 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 04:44:18,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:44:18,867 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 04:44:18,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:18,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-03-26 04:44:18,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 593 [2021-03-26 04:44:18,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 594 [2021-03-26 04:44:18,898 INFO L142 QuantifierPusher]: treesize reduction 6891, result has 2.0 percent of original size [2021-03-26 04:44:18,898 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:44:18,899 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,900 INFO L142 QuantifierPusher]: treesize reduction 90, result has 63.9 percent of original size [2021-03-26 04:44:18,900 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:44:18,900 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,901 INFO L142 QuantifierPusher]: treesize reduction 104, result has 46.4 percent of original size [2021-03-26 04:44:18,901 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:18,902 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,902 INFO L142 QuantifierPusher]: treesize reduction 30, result has 77.1 percent of original size [2021-03-26 04:44:18,902 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:18,903 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,903 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:18,903 INFO L142 QuantifierPusher]: treesize reduction 48, result has 45.5 percent of original size [2021-03-26 04:44:18,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:18,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:18,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:18,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:18,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:18,938 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:44:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:18,941 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:18,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:18,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:18,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:18,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 04:44:18,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637385465] [2021-03-26 04:44:18,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:44:18,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:18,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:44:18,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:44:18,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 90 [2021-03-26 04:44:18,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 220 transitions, 3679 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) [2021-03-26 04:44:18,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:18,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 90 [2021-03-26 04:44:18,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:19,744 INFO L129 PetriNetUnfolder]: 244/640 cut-off events. [2021-03-26 04:44:19,744 INFO L130 PetriNetUnfolder]: For 55801/55801 co-relation queries the response was YES. [2021-03-26 04:44:19,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8699 conditions, 640 events. 244/640 cut-off events. For 55801/55801 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4243 event pairs, 10 based on Foata normal form. 4/641 useless extension candidates. Maximal degree in co-relation 8558. Up to 375 conditions per place. [2021-03-26 04:44:19,754 INFO L132 encePairwiseOnDemand]: 70/90 looper letters, 184 selfloop transitions, 71 changer transitions 1/261 dead transitions. [2021-03-26 04:44:19,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 261 transitions, 5845 flow [2021-03-26 04:44:19,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 04:44:19,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 04:44:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 239 transitions. [2021-03-26 04:44:19,755 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.20427350427350427 [2021-03-26 04:44:19,755 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 239 transitions. [2021-03-26 04:44:19,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 239 transitions. [2021-03-26 04:44:19,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:19,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 239 transitions. [2021-03-26 04:44:19,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 18.384615384615383) internal successors, (239), 13 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:19,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 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) [2021-03-26 04:44:19,757 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 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) [2021-03-26 04:44:19,757 INFO L185 Difference]: Start difference. First operand has 263 places, 220 transitions, 3679 flow. Second operand 13 states and 239 transitions. [2021-03-26 04:44:19,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 261 transitions, 5845 flow [2021-03-26 04:44:19,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 261 transitions, 5747 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:19,948 INFO L241 Difference]: Finished difference. Result has 269 places, 218 transitions, 3797 flow [2021-03-26 04:44:19,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3574, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3797, PETRI_PLACES=269, PETRI_TRANSITIONS=218} [2021-03-26 04:44:19,949 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 253 predicate places. [2021-03-26 04:44:19,949 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:19,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 218 transitions, 3797 flow [2021-03-26 04:44:19,949 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 218 transitions, 3797 flow [2021-03-26 04:44:19,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 269 places, 218 transitions, 3797 flow [2021-03-26 04:44:20,025 INFO L129 PetriNetUnfolder]: 239/634 cut-off events. [2021-03-26 04:44:20,025 INFO L130 PetriNetUnfolder]: For 54003/54046 co-relation queries the response was YES. [2021-03-26 04:44:20,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8188 conditions, 634 events. 239/634 cut-off events. For 54003/54046 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4308 event pairs, 21 based on Foata normal form. 2/629 useless extension candidates. Maximal degree in co-relation 8041. Up to 371 conditions per place. [2021-03-26 04:44:20,032 INFO L142 LiptonReduction]: Number of co-enabled transitions 118 [2021-03-26 04:44:20,279 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 04:44:20,280 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:44:20,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 331 [2021-03-26 04:44:20,280 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 218 transitions, 3804 flow [2021-03-26 04:44:20,280 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) [2021-03-26 04:44:20,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:20,280 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:20,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable299 [2021-03-26 04:44:20,481 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:20,481 INFO L82 PathProgramCache]: Analyzing trace with hash 183220994, now seen corresponding path program 3 times [2021-03-26 04:44:20,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:20,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986884167] [2021-03-26 04:44:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:20,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,494 INFO L142 QuantifierPusher]: treesize reduction 125, result has 4.6 percent of original size [2021-03-26 04:44:20,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:20,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 04:44:20,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:44:20,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:20,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986884167] [2021-03-26 04:44:20,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445965750] [2021-03-26 04:44:20,525 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 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 [2021-03-26 04:44:20,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 04:44:20,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:44:20,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:20,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:20,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:20,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:20,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:20,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:20,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,582 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:20,582 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:20,583 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:20,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:20,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:20,597 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 04:44:20,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:44:20,599 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 04:44:20,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:20,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-03-26 04:44:20,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,618 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:20,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 471 [2021-03-26 04:44:20,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 472 [2021-03-26 04:44:20,621 INFO L142 QuantifierPusher]: treesize reduction 645, result has 16.7 percent of original size [2021-03-26 04:44:20,621 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:20,628 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,628 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:20,629 INFO L142 QuantifierPusher]: treesize reduction 96, result has 54.9 percent of original size [2021-03-26 04:44:20,629 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:20,630 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:20,630 INFO L142 QuantifierPusher]: treesize reduction 81, result has 44.9 percent of original size [2021-03-26 04:44:20,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:20,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:20,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:20,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:20,654 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:44:20,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:20,658 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:20,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:20,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:20,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:20,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:20,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:20,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314039964] [2021-03-26 04:44:20,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:20,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:20,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:20,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:20,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 91 [2021-03-26 04:44:20,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 218 transitions, 3804 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) [2021-03-26 04:44:20,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:20,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 91 [2021-03-26 04:44:20,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:21,068 INFO L129 PetriNetUnfolder]: 248/642 cut-off events. [2021-03-26 04:44:21,068 INFO L130 PetriNetUnfolder]: For 58009/58019 co-relation queries the response was YES. [2021-03-26 04:44:21,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8966 conditions, 642 events. 248/642 cut-off events. For 58009/58019 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4242 event pairs, 17 based on Foata normal form. 9/648 useless extension candidates. Maximal degree in co-relation 8825. Up to 383 conditions per place. [2021-03-26 04:44:21,076 INFO L132 encePairwiseOnDemand]: 74/91 looper letters, 189 selfloop transitions, 51 changer transitions 1/246 dead transitions. [2021-03-26 04:44:21,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 246 transitions, 5312 flow [2021-03-26 04:44:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:44:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:44:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 195 transitions. [2021-03-26 04:44:21,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21428571428571427 [2021-03-26 04:44:21,077 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 195 transitions. [2021-03-26 04:44:21,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 195 transitions. [2021-03-26 04:44:21,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:21,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 195 transitions. [2021-03-26 04:44:21,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 19.5) internal successors, (195), 10 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:21,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:21,078 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:21,078 INFO L185 Difference]: Start difference. First operand has 269 places, 218 transitions, 3804 flow. Second operand 10 states and 195 transitions. [2021-03-26 04:44:21,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 246 transitions, 5312 flow [2021-03-26 04:44:21,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 246 transitions, 5202 flow, removed 31 selfloop flow, removed 8 redundant places. [2021-03-26 04:44:21,285 INFO L241 Difference]: Finished difference. Result has 271 places, 220 transitions, 3863 flow [2021-03-26 04:44:21,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=3696, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3863, PETRI_PLACES=271, PETRI_TRANSITIONS=220} [2021-03-26 04:44:21,285 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 255 predicate places. [2021-03-26 04:44:21,285 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:21,285 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 220 transitions, 3863 flow [2021-03-26 04:44:21,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 220 transitions, 3863 flow [2021-03-26 04:44:21,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 271 places, 220 transitions, 3863 flow [2021-03-26 04:44:21,368 INFO L129 PetriNetUnfolder]: 243/644 cut-off events. [2021-03-26 04:44:21,368 INFO L130 PetriNetUnfolder]: For 55185/55236 co-relation queries the response was YES. [2021-03-26 04:44:21,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8312 conditions, 644 events. 243/644 cut-off events. For 55185/55236 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4351 event pairs, 23 based on Foata normal form. 2/637 useless extension candidates. Maximal degree in co-relation 8165. Up to 378 conditions per place. [2021-03-26 04:44:21,376 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 04:44:21,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:21,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:21,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-26 04:44:21,383 INFO L480 AbstractCegarLoop]: Abstraction has has 271 places, 220 transitions, 3863 flow [2021-03-26 04:44:21,383 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) [2021-03-26 04:44:21,384 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:21,384 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:21,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:21,584 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:21,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1835010950, now seen corresponding path program 1 times [2021-03-26 04:44:21,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:21,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966739277] [2021-03-26 04:44:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:21,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:21,608 INFO L142 QuantifierPusher]: treesize reduction 406, result has 8.8 percent of original size [2021-03-26 04:44:21,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:21,624 INFO L142 QuantifierPusher]: treesize reduction 91, result has 21.6 percent of original size [2021-03-26 04:44:21,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:21,637 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-03-26 04:44:21,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:21,661 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size [2021-03-26 04:44:21,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:21,679 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:21,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:21,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:21,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966739277] [2021-03-26 04:44:21,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123321893] [2021-03-26 04:44:21,704 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 [2021-03-26 04:44:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:21,762 WARN L261 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 34 conjunts are in the unsatisfiable core [2021-03-26 04:44:21,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:21,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:21,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:21,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:21,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:21,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:21,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:44:21,768 INFO L142 QuantifierPusher]: treesize reduction 160, result has 33.1 percent of original size [2021-03-26 04:44:21,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:21,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:21,820 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.1 percent of original size [2021-03-26 04:44:21,820 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:21,822 INFO L147 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size 44 [2021-03-26 04:44:21,822 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.9 percent of original size [2021-03-26 04:44:21,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:21,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:21,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,825 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:21,825 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,826 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:21,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:21,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:21,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:21,848 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.1 percent of original size [2021-03-26 04:44:21,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:21,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:44:21,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:21,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-03-26 04:44:21,852 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.4 percent of original size [2021-03-26 04:44:21,853 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size 126 [2021-03-26 04:44:21,853 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size [2021-03-26 04:44:21,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 04:44:21,980 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2021-03-26 04:44:21,981 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.2 percent of original size [2021-03-26 04:44:21,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:21,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 04:44:21,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,983 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-26 04:44:21,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-26 04:44:21,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,985 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,986 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:44:21,986 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:21,986 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,986 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:44:21,987 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:21,987 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:44:21,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,989 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:21,989 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,989 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,992 INFO L142 QuantifierPusher]: treesize reduction 8, result has 78.4 percent of original size [2021-03-26 04:44:21,993 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:44:21,994 INFO L147 QuantifierPusher]: treesize reduction 18, result has 10.0 percent of original size 2 [2021-03-26 04:44:21,994 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:21,994 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:21,994 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:21,995 INFO L142 QuantifierPusher]: treesize reduction 95, result has 43.8 percent of original size [2021-03-26 04:44:21,996 INFO L147 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size 25 [2021-03-26 04:44:21,996 INFO L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-03-26 04:44:21,997 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-26 04:44:21,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:22,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:22,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:22,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:22,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:22,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,023 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:22,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 408 [2021-03-26 04:44:22,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 892 [2021-03-26 04:44:22,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 893 [2021-03-26 04:44:22,035 INFO L142 QuantifierPusher]: treesize reduction 12218, result has 1.4 percent of original size [2021-03-26 04:44:22,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,037 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:22,037 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:22,038 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,039 INFO L142 QuantifierPusher]: treesize reduction 163, result has 47.6 percent of original size [2021-03-26 04:44:22,039 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2021-03-26 04:44:22,040 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,041 INFO L142 QuantifierPusher]: treesize reduction 123, result has 50.2 percent of original size [2021-03-26 04:44:22,042 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:44:22,042 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,043 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,043 INFO L142 QuantifierPusher]: treesize reduction 62, result has 39.2 percent of original size [2021-03-26 04:44:22,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:22,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:22,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:22,070 INFO L142 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size [2021-03-26 04:44:22,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:22,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:44:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:22,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:22,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:22,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:22,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:22,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058313252] [2021-03-26 04:44:22,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:22,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:22,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:22,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:22,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 91 [2021-03-26 04:44:22,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 220 transitions, 3863 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) [2021-03-26 04:44:22,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:22,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 91 [2021-03-26 04:44:22,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:23,209 INFO L129 PetriNetUnfolder]: 295/732 cut-off events. [2021-03-26 04:44:23,209 INFO L130 PetriNetUnfolder]: For 62943/62953 co-relation queries the response was YES. [2021-03-26 04:44:23,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10311 conditions, 732 events. 295/732 cut-off events. For 62943/62953 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 4864 event pairs, 1 based on Foata normal form. 7/736 useless extension candidates. Maximal degree in co-relation 10170. Up to 456 conditions per place. [2021-03-26 04:44:23,221 INFO L132 encePairwiseOnDemand]: 69/91 looper letters, 225 selfloop transitions, 79 changer transitions 4/312 dead transitions. [2021-03-26 04:44:23,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 312 transitions, 7617 flow [2021-03-26 04:44:23,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-26 04:44:23,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-26 04:44:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 258 transitions. [2021-03-26 04:44:23,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1771978021978022 [2021-03-26 04:44:23,222 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 258 transitions. [2021-03-26 04:44:23,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 258 transitions. [2021-03-26 04:44:23,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:23,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 258 transitions. [2021-03-26 04:44:23,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 16.125) internal successors, (258), 16 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:23,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 91.0) internal successors, (1547), 17 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:23,228 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 91.0) internal successors, (1547), 17 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:23,228 INFO L185 Difference]: Start difference. First operand has 271 places, 220 transitions, 3863 flow. Second operand 16 states and 258 transitions. [2021-03-26 04:44:23,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 312 transitions, 7617 flow [2021-03-26 04:44:23,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 312 transitions, 7420 flow, removed 65 selfloop flow, removed 6 redundant places. [2021-03-26 04:44:23,434 INFO L241 Difference]: Finished difference. Result has 284 places, 233 transitions, 4391 flow [2021-03-26 04:44:23,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=3758, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4391, PETRI_PLACES=284, PETRI_TRANSITIONS=233} [2021-03-26 04:44:23,434 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 268 predicate places. [2021-03-26 04:44:23,434 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:23,434 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 233 transitions, 4391 flow [2021-03-26 04:44:23,434 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 233 transitions, 4391 flow [2021-03-26 04:44:23,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 283 places, 233 transitions, 4391 flow [2021-03-26 04:44:23,528 INFO L129 PetriNetUnfolder]: 289/704 cut-off events. [2021-03-26 04:44:23,529 INFO L130 PetriNetUnfolder]: For 64803/64846 co-relation queries the response was YES. [2021-03-26 04:44:23,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9815 conditions, 704 events. 289/704 cut-off events. For 64803/64846 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4681 event pairs, 29 based on Foata normal form. 7/702 useless extension candidates. Maximal degree in co-relation 9664. Up to 447 conditions per place. [2021-03-26 04:44:23,538 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 04:44:23,854 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 04:44:24,308 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-03-26 04:44:24,506 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:24,506 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 04:44:24,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1073 [2021-03-26 04:44:24,507 INFO L480 AbstractCegarLoop]: Abstraction has has 283 places, 233 transitions, 4449 flow [2021-03-26 04:44:24,507 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) [2021-03-26 04:44:24,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:24,507 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:24,707 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable310 [2021-03-26 04:44:24,707 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:24,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:24,708 INFO L82 PathProgramCache]: Analyzing trace with hash 564899940, now seen corresponding path program 2 times [2021-03-26 04:44:24,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:24,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596446918] [2021-03-26 04:44:24,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:24,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:24,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:24,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:24,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:24,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-03-26 04:44:24,771 INFO L142 QuantifierPusher]: treesize reduction 26, result has 76.1 percent of original size [2021-03-26 04:44:24,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:44:24,856 INFO L142 QuantifierPusher]: treesize reduction 1810, result has 10.7 percent of original size [2021-03-26 04:44:24,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-03-26 04:44:24,924 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:24,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:24,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:24,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:24,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596446918] [2021-03-26 04:44:24,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754604075] [2021-03-26 04:44:24,952 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 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 [2021-03-26 04:44:25,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:44:25,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:44:25,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 04:44:25,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:25,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:25,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,013 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:25,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:25,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,014 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:25,015 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,015 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,016 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:25,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:25,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:25,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:25,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,036 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:25,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:44:25,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,037 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:25,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-03-26 04:44:25,039 INFO L142 QuantifierPusher]: treesize reduction 23, result has 80.3 percent of original size [2021-03-26 04:44:25,040 INFO L147 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size 81 [2021-03-26 04:44:25,041 INFO L142 QuantifierPusher]: treesize reduction 8, result has 91.0 percent of original size [2021-03-26 04:44:25,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-26 04:44:25,096 INFO L142 QuantifierPusher]: treesize reduction 13, result has 90.2 percent of original size [2021-03-26 04:44:25,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:44:25,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 04:44:25,099 INFO L142 QuantifierPusher]: treesize reduction 25, result has 85.5 percent of original size [2021-03-26 04:44:25,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 04:44:25,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 04:44:25,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,177 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:25,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 04:44:25,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-26 04:44:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-03-26 04:44:25,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,181 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:44:25,181 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:25,182 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,182 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:44:25,182 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:25,182 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-26 04:44:25,184 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:25,184 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,185 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,185 INFO L142 QuantifierPusher]: treesize reduction 78, result has 48.3 percent of original size [2021-03-26 04:44:25,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-26 04:44:25,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 04:44:25,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-03-26 04:44:25,309 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2021-03-26 04:44:25,310 INFO L142 QuantifierPusher]: treesize reduction 65, result has 67.3 percent of original size [2021-03-26 04:44:25,310 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:25,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-03-26 04:44:25,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,313 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2021-03-26 04:44:25,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-03-26 04:44:25,316 INFO L142 QuantifierPusher]: treesize reduction 214, result has 48.2 percent of original size [2021-03-26 04:44:25,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,318 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:25,319 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:25,319 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,321 INFO L142 QuantifierPusher]: treesize reduction 208, result has 40.1 percent of original size [2021-03-26 04:44:25,321 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2021-03-26 04:44:25,323 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,323 INFO L142 QuantifierPusher]: treesize reduction 105, result has 41.3 percent of original size [2021-03-26 04:44:25,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:25,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:25,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:25,359 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-26 04:44:25,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:25,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:25,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-26 04:44:25,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:25,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,364 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 1] term [2021-03-26 04:44:25,364 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:25,365 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,366 INFO L147 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size 40 [2021-03-26 04:44:25,366 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 4, 2, 2, 1] term [2021-03-26 04:44:25,366 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:25,366 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,367 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:44:25,368 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:44:25,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:25,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:25,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:25,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:25,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397277060] [2021-03-26 04:44:25,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:25,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:25,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:25,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:25,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 95 [2021-03-26 04:44:25,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 233 transitions, 4449 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) [2021-03-26 04:44:25,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:25,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 95 [2021-03-26 04:44:25,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:25,867 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2021-03-26 04:44:26,147 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2021-03-26 04:44:26,291 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-03-26 04:44:26,607 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-26 04:44:26,742 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2021-03-26 04:44:26,919 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2021-03-26 04:44:27,316 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2021-03-26 04:44:27,432 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-26 04:44:27,573 INFO L129 PetriNetUnfolder]: 303/761 cut-off events. [2021-03-26 04:44:27,573 INFO L130 PetriNetUnfolder]: For 72476/72486 co-relation queries the response was YES. [2021-03-26 04:44:27,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11377 conditions, 761 events. 303/761 cut-off events. For 72476/72486 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5141 event pairs, 24 based on Foata normal form. 9/767 useless extension candidates. Maximal degree in co-relation 11232. Up to 580 conditions per place. [2021-03-26 04:44:27,581 INFO L132 encePairwiseOnDemand]: 83/95 looper letters, 215 selfloop transitions, 47 changer transitions 5/271 dead transitions. [2021-03-26 04:44:27,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 271 transitions, 6625 flow [2021-03-26 04:44:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-26 04:44:27,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-26 04:44:27,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 322 transitions. [2021-03-26 04:44:27,582 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15406698564593302 [2021-03-26 04:44:27,582 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 322 transitions. [2021-03-26 04:44:27,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 322 transitions. [2021-03-26 04:44:27,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:27,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 322 transitions. [2021-03-26 04:44:27,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 14.636363636363637) internal successors, (322), 22 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) [2021-03-26 04:44:27,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:27,585 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 95.0) internal successors, (2185), 23 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:27,585 INFO L185 Difference]: Start difference. First operand has 283 places, 233 transitions, 4449 flow. Second operand 22 states and 322 transitions. [2021-03-26 04:44:27,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 271 transitions, 6625 flow [2021-03-26 04:44:27,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 271 transitions, 6041 flow, removed 239 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:27,822 INFO L241 Difference]: Finished difference. Result has 307 places, 258 transitions, 5347 flow [2021-03-26 04:44:27,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=4039, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5347, PETRI_PLACES=307, PETRI_TRANSITIONS=258} [2021-03-26 04:44:27,822 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 291 predicate places. [2021-03-26 04:44:27,822 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:27,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 258 transitions, 5347 flow [2021-03-26 04:44:27,822 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 258 transitions, 5347 flow [2021-03-26 04:44:27,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 258 transitions, 5347 flow [2021-03-26 04:44:27,924 INFO L129 PetriNetUnfolder]: 297/746 cut-off events. [2021-03-26 04:44:27,925 INFO L130 PetriNetUnfolder]: For 69814/69850 co-relation queries the response was YES. [2021-03-26 04:44:27,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10278 conditions, 746 events. 297/746 cut-off events. For 69814/69850 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5159 event pairs, 30 based on Foata normal form. 3/740 useless extension candidates. Maximal degree in co-relation 10117. Up to 467 conditions per place. [2021-03-26 04:44:27,934 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 04:44:29,020 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:29,020 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 04:44:29,020 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1198 [2021-03-26 04:44:29,021 INFO L480 AbstractCegarLoop]: Abstraction has has 302 places, 255 transitions, 5335 flow [2021-03-26 04:44:29,021 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) [2021-03-26 04:44:29,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:29,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:29,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable319 [2021-03-26 04:44:29,221 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:29,222 INFO L82 PathProgramCache]: Analyzing trace with hash -426757218, now seen corresponding path program 1 times [2021-03-26 04:44:29,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:29,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491342910] [2021-03-26 04:44:29,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:29,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,242 INFO L142 QuantifierPusher]: treesize reduction 139, result has 10.9 percent of original size [2021-03-26 04:44:29,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:29,252 INFO L142 QuantifierPusher]: treesize reduction 136, result has 17.6 percent of original size [2021-03-26 04:44:29,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:29,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:29,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:29,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491342910] [2021-03-26 04:44:29,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943658416] [2021-03-26 04:44:29,272 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 [2021-03-26 04:44:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:29,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2021-03-26 04:44:29,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:29,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:29,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-26 04:44:29,321 INFO L142 QuantifierPusher]: treesize reduction 25, result has 76.0 percent of original size [2021-03-26 04:44:29,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:29,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:29,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-03-26 04:44:29,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 321 [2021-03-26 04:44:29,360 INFO L142 QuantifierPusher]: treesize reduction 1582, result has 16.1 percent of original size [2021-03-26 04:44:29,361 INFO L147 QuantifierPusher]: treesize reduction 15, result has 95.0 percent of original size 288 [2021-03-26 04:44:29,362 INFO L142 QuantifierPusher]: treesize reduction 15, result has 95.0 percent of original size [2021-03-26 04:44:29,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-03-26 04:44:29,512 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2021-03-26 04:44:29,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:44:29,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:44:29,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:44:29,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-03-26 04:44:29,517 INFO L142 QuantifierPusher]: treesize reduction 57, result has 62.7 percent of original size [2021-03-26 04:44:29,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:29,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:29,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:44:29,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 04:44:29,521 INFO L142 QuantifierPusher]: treesize reduction 99, result has 29.3 percent of original size [2021-03-26 04:44:29,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:29,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:29,524 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:29,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:29,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:29,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:29,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 04:44:29,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009867843] [2021-03-26 04:44:29,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 04:44:29,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:29,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 04:44:29,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 04:44:29,531 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 101 [2021-03-26 04:44:29,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 255 transitions, 5335 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) [2021-03-26 04:44:29,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:29,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 101 [2021-03-26 04:44:29,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:29,960 INFO L129 PetriNetUnfolder]: 302/757 cut-off events. [2021-03-26 04:44:29,960 INFO L130 PetriNetUnfolder]: For 73728/73754 co-relation queries the response was YES. [2021-03-26 04:44:29,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11069 conditions, 757 events. 302/757 cut-off events. For 73728/73754 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5098 event pairs, 18 based on Foata normal form. 5/755 useless extension candidates. Maximal degree in co-relation 10914. Up to 480 conditions per place. [2021-03-26 04:44:29,995 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 216 selfloop transitions, 24 changer transitions 0/263 dead transitions. [2021-03-26 04:44:29,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 263 transitions, 6090 flow [2021-03-26 04:44:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:44:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:44:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2021-03-26 04:44:29,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.24045261669024046 [2021-03-26 04:44:29,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 170 transitions. [2021-03-26 04:44:29,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 170 transitions. [2021-03-26 04:44:29,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:29,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 170 transitions. [2021-03-26 04:44:29,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 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) [2021-03-26 04:44:29,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:29,997 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:29,997 INFO L185 Difference]: Start difference. First operand has 302 places, 255 transitions, 5335 flow. Second operand 7 states and 170 transitions. [2021-03-26 04:44:29,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 263 transitions, 6090 flow [2021-03-26 04:44:30,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 263 transitions, 5079 flow, removed 501 selfloop flow, removed 8 redundant places. [2021-03-26 04:44:30,270 INFO L241 Difference]: Finished difference. Result has 301 places, 256 transitions, 4454 flow [2021-03-26 04:44:30,270 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4324, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4454, PETRI_PLACES=301, PETRI_TRANSITIONS=256} [2021-03-26 04:44:30,271 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 285 predicate places. [2021-03-26 04:44:30,271 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:30,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 301 places, 256 transitions, 4454 flow [2021-03-26 04:44:30,271 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 301 places, 256 transitions, 4454 flow [2021-03-26 04:44:30,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 256 transitions, 4454 flow [2021-03-26 04:44:30,409 INFO L129 PetriNetUnfolder]: 301/761 cut-off events. [2021-03-26 04:44:30,410 INFO L130 PetriNetUnfolder]: For 66644/66680 co-relation queries the response was YES. [2021-03-26 04:44:30,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9863 conditions, 761 events. 301/761 cut-off events. For 66644/66680 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 5262 event pairs, 29 based on Foata normal form. 3/755 useless extension candidates. Maximal degree in co-relation 9706. Up to 453 conditions per place. [2021-03-26 04:44:30,424 INFO L142 LiptonReduction]: Number of co-enabled transitions 140 [2021-03-26 04:44:30,436 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:30,436 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:30,436 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 165 [2021-03-26 04:44:30,437 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 256 transitions, 4454 flow [2021-03-26 04:44:30,437 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) [2021-03-26 04:44:30,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:30,437 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:30,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:30,652 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:30,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:30,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1865296607, now seen corresponding path program 1 times [2021-03-26 04:44:30,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:30,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206989566] [2021-03-26 04:44:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:30,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:30,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:30,667 INFO L142 QuantifierPusher]: treesize reduction 66, result has 13.2 percent of original size [2021-03-26 04:44:30,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:30,675 INFO L142 QuantifierPusher]: treesize reduction 102, result has 34.6 percent of original size [2021-03-26 04:44:30,675 INFO L147 QuantifierPusher]: treesize reduction 23, result has 57.4 percent of original size 31 [2021-03-26 04:44:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:30,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:44:30,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:30,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:30,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:30,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206989566] [2021-03-26 04:44:30,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:44:30,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:44:30,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739109452] [2021-03-26 04:44:30,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:44:30,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:30,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:44:30,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:44:30,706 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 101 [2021-03-26 04:44:30,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 256 transitions, 4454 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) [2021-03-26 04:44:30,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:30,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 101 [2021-03-26 04:44:30,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:31,076 INFO L129 PetriNetUnfolder]: 305/750 cut-off events. [2021-03-26 04:44:31,077 INFO L130 PetriNetUnfolder]: For 67768/67778 co-relation queries the response was YES. [2021-03-26 04:44:31,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10561 conditions, 750 events. 305/750 cut-off events. For 67768/67778 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4977 event pairs, 28 based on Foata normal form. 6/753 useless extension candidates. Maximal degree in co-relation 10409. Up to 574 conditions per place. [2021-03-26 04:44:31,085 INFO L132 encePairwiseOnDemand]: 88/101 looper letters, 232 selfloop transitions, 21 changer transitions 1/259 dead transitions. [2021-03-26 04:44:31,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 259 transitions, 5142 flow [2021-03-26 04:44:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:44:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:44:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2021-03-26 04:44:31,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23267326732673269 [2021-03-26 04:44:31,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 141 transitions. [2021-03-26 04:44:31,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 141 transitions. [2021-03-26 04:44:31,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:31,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 141 transitions. [2021-03-26 04:44:31,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:31,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:31,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:31,087 INFO L185 Difference]: Start difference. First operand has 301 places, 256 transitions, 4454 flow. Second operand 6 states and 141 transitions. [2021-03-26 04:44:31,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 259 transitions, 5142 flow [2021-03-26 04:44:31,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 259 transitions, 5029 flow, removed 31 selfloop flow, removed 5 redundant places. [2021-03-26 04:44:31,326 INFO L241 Difference]: Finished difference. Result has 300 places, 252 transitions, 4345 flow [2021-03-26 04:44:31,326 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4325, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4345, PETRI_PLACES=300, PETRI_TRANSITIONS=252} [2021-03-26 04:44:31,326 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 284 predicate places. [2021-03-26 04:44:31,326 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:31,327 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 300 places, 252 transitions, 4345 flow [2021-03-26 04:44:31,327 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 300 places, 252 transitions, 4345 flow [2021-03-26 04:44:31,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 252 transitions, 4345 flow [2021-03-26 04:44:31,430 INFO L129 PetriNetUnfolder]: 300/758 cut-off events. [2021-03-26 04:44:31,430 INFO L130 PetriNetUnfolder]: For 65254/65273 co-relation queries the response was YES. [2021-03-26 04:44:31,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9767 conditions, 758 events. 300/758 cut-off events. For 65254/65273 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5196 event pairs, 26 based on Foata normal form. 5/756 useless extension candidates. Maximal degree in co-relation 9610. Up to 454 conditions per place. [2021-03-26 04:44:31,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 04:44:31,447 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:31,447 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:31,447 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 121 [2021-03-26 04:44:31,448 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 252 transitions, 4345 flow [2021-03-26 04:44:31,448 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) [2021-03-26 04:44:31,448 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:31,448 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:31,448 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-03-26 04:44:31,448 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:31,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1889936647, now seen corresponding path program 1 times [2021-03-26 04:44:31,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:31,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29834115] [2021-03-26 04:44:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:31,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:31,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:31,461 INFO L142 QuantifierPusher]: treesize reduction 209, result has 4.6 percent of original size [2021-03-26 04:44:31,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:31,470 INFO L142 QuantifierPusher]: treesize reduction 214, result has 12.3 percent of original size [2021-03-26 04:44:31,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:31,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:31,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:31,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:31,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:31,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29834115] [2021-03-26 04:44:31,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:44:31,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 04:44:31,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135389123] [2021-03-26 04:44:31,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 04:44:31,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:31,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 04:44:31,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 04:44:31,490 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 101 [2021-03-26 04:44:31,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 252 transitions, 4345 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) [2021-03-26 04:44:31,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:31,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 101 [2021-03-26 04:44:31,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:31,783 INFO L129 PetriNetUnfolder]: 306/753 cut-off events. [2021-03-26 04:44:31,784 INFO L130 PetriNetUnfolder]: For 69011/69021 co-relation queries the response was YES. [2021-03-26 04:44:31,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10580 conditions, 753 events. 306/753 cut-off events. For 69011/69021 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 5007 event pairs, 22 based on Foata normal form. 9/759 useless extension candidates. Maximal degree in co-relation 10429. Up to 572 conditions per place. [2021-03-26 04:44:31,791 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 221 selfloop transitions, 28 changer transitions 0/254 dead transitions. [2021-03-26 04:44:31,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 254 transitions, 5071 flow [2021-03-26 04:44:31,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:44:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:44:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2021-03-26 04:44:31,792 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2376237623762376 [2021-03-26 04:44:31,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 144 transitions. [2021-03-26 04:44:31,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 144 transitions. [2021-03-26 04:44:31,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:31,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 144 transitions. [2021-03-26 04:44:31,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.0) internal successors, (144), 6 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) [2021-03-26 04:44:31,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:31,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:31,793 INFO L185 Difference]: Start difference. First operand has 298 places, 252 transitions, 4345 flow. Second operand 6 states and 144 transitions. [2021-03-26 04:44:31,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 254 transitions, 5071 flow [2021-03-26 04:44:32,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 254 transitions, 5028 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-26 04:44:32,028 INFO L241 Difference]: Finished difference. Result has 298 places, 250 transitions, 4445 flow [2021-03-26 04:44:32,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4264, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4445, PETRI_PLACES=298, PETRI_TRANSITIONS=250} [2021-03-26 04:44:32,029 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 282 predicate places. [2021-03-26 04:44:32,029 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:32,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 298 places, 250 transitions, 4445 flow [2021-03-26 04:44:32,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 298 places, 250 transitions, 4445 flow [2021-03-26 04:44:32,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 298 places, 250 transitions, 4445 flow [2021-03-26 04:44:32,123 INFO L129 PetriNetUnfolder]: 301/750 cut-off events. [2021-03-26 04:44:32,123 INFO L130 PetriNetUnfolder]: For 69438/69474 co-relation queries the response was YES. [2021-03-26 04:44:32,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9956 conditions, 750 events. 301/750 cut-off events. For 69438/69474 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5158 event pairs, 29 based on Foata normal form. 3/744 useless extension candidates. Maximal degree in co-relation 9798. Up to 458 conditions per place. [2021-03-26 04:44:32,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 04:44:32,140 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:32,140 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:32,140 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-26 04:44:32,141 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 250 transitions, 4445 flow [2021-03-26 04:44:32,141 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) [2021-03-26 04:44:32,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:32,141 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:32,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-03-26 04:44:32,141 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:32,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:32,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1372360242, now seen corresponding path program 1 times [2021-03-26 04:44:32,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:32,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107984894] [2021-03-26 04:44:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:32,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,159 INFO L142 QuantifierPusher]: treesize reduction 124, result has 16.2 percent of original size [2021-03-26 04:44:32,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:32,170 INFO L142 QuantifierPusher]: treesize reduction 124, result has 14.5 percent of original size [2021-03-26 04:44:32,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:44:32,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 04:44:32,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:32,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:32,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107984894] [2021-03-26 04:44:32,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832482643] [2021-03-26 04:44:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:44:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:32,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2021-03-26 04:44:32,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:32,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:32,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:32,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:32,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:32,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,300 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:32,300 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:32,301 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:32,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,317 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-03-26 04:44:32,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:32,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,318 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:32,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:32,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:32,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,320 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:32,321 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,321 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:32,321 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:32,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:32,343 INFO L142 QuantifierPusher]: treesize reduction 13, result has 75.5 percent of original size [2021-03-26 04:44:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:32,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:44:32,345 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.6 percent of original size [2021-03-26 04:44:32,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:32,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:32,367 INFO L142 QuantifierPusher]: treesize reduction 21, result has 44.7 percent of original size [2021-03-26 04:44:32,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:32,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 324 [2021-03-26 04:44:32,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:32,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-03-26 04:44:32,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 259 [2021-03-26 04:44:32,391 INFO L142 QuantifierPusher]: treesize reduction 834, result has 0.1 percent of original size [2021-03-26 04:44:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:32,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:32,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:32,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:44:32,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988544291] [2021-03-26 04:44:32,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 04:44:32,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:32,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 04:44:32,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-03-26 04:44:32,397 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 101 [2021-03-26 04:44:32,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 250 transitions, 4445 flow. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-03-26 04:44:32,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:32,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 101 [2021-03-26 04:44:32,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:33,058 INFO L129 PetriNetUnfolder]: 303/745 cut-off events. [2021-03-26 04:44:33,058 INFO L130 PetriNetUnfolder]: For 70318/70339 co-relation queries the response was YES. [2021-03-26 04:44:33,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10476 conditions, 745 events. 303/745 cut-off events. For 70318/70339 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4932 event pairs, 22 based on Foata normal form. 6/750 useless extension candidates. Maximal degree in co-relation 10324. Up to 459 conditions per place. [2021-03-26 04:44:33,066 INFO L132 encePairwiseOnDemand]: 77/101 looper letters, 182 selfloop transitions, 66 changer transitions 0/274 dead transitions. [2021-03-26 04:44:33,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 274 transitions, 5820 flow [2021-03-26 04:44:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 04:44:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 04:44:33,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 224 transitions. [2021-03-26 04:44:33,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22178217821782178 [2021-03-26 04:44:33,067 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 224 transitions. [2021-03-26 04:44:33,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 224 transitions. [2021-03-26 04:44:33,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:33,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 224 transitions. [2021-03-26 04:44:33,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 22.4) internal successors, (224), 10 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:33,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:33,069 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 101.0) internal successors, (1111), 11 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:33,069 INFO L185 Difference]: Start difference. First operand has 298 places, 250 transitions, 4445 flow. Second operand 10 states and 224 transitions. [2021-03-26 04:44:33,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 274 transitions, 5820 flow [2021-03-26 04:44:33,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 274 transitions, 5691 flow, removed 40 selfloop flow, removed 3 redundant places. [2021-03-26 04:44:33,317 INFO L241 Difference]: Finished difference. Result has 301 places, 247 transitions, 4397 flow [2021-03-26 04:44:33,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4265, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4397, PETRI_PLACES=301, PETRI_TRANSITIONS=247} [2021-03-26 04:44:33,317 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 285 predicate places. [2021-03-26 04:44:33,318 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:33,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 301 places, 247 transitions, 4397 flow [2021-03-26 04:44:33,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 301 places, 247 transitions, 4397 flow [2021-03-26 04:44:33,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 301 places, 247 transitions, 4397 flow [2021-03-26 04:44:33,459 INFO L129 PetriNetUnfolder]: 299/742 cut-off events. [2021-03-26 04:44:33,459 INFO L130 PetriNetUnfolder]: For 67842/67878 co-relation queries the response was YES. [2021-03-26 04:44:33,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9894 conditions, 742 events. 299/742 cut-off events. For 67842/67878 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5037 event pairs, 31 based on Foata normal form. 3/736 useless extension candidates. Maximal degree in co-relation 9736. Up to 455 conditions per place. [2021-03-26 04:44:33,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 04:44:33,485 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:33,485 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:33,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 167 [2021-03-26 04:44:33,486 INFO L480 AbstractCegarLoop]: Abstraction has has 301 places, 247 transitions, 4397 flow [2021-03-26 04:44:33,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 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) [2021-03-26 04:44:33,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:33,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:33,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable331 [2021-03-26 04:44:33,708 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:33,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1434913625, now seen corresponding path program 1 times [2021-03-26 04:44:33,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:33,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176378555] [2021-03-26 04:44:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:33,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,723 INFO L142 QuantifierPusher]: treesize reduction 91, result has 38.1 percent of original size [2021-03-26 04:44:33,724 INFO L147 QuantifierPusher]: treesize reduction 46, result has 17.9 percent of original size 10 [2021-03-26 04:44:33,738 INFO L142 QuantifierPusher]: treesize reduction 134, result has 18.8 percent of original size [2021-03-26 04:44:33,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:33,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:44:33,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:33,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:33,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176378555] [2021-03-26 04:44:33,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118490110] [2021-03-26 04:44:33,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-03-26 04:44:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:33,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2021-03-26 04:44:33,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:33,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:33,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,843 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:33,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:33,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,844 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:33,846 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,846 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,846 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:33,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:33,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-26 04:44:33,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 04:44:33,877 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.0 percent of original size [2021-03-26 04:44:33,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:33,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:33,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.4 percent of original size [2021-03-26 04:44:33,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:33,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-03-26 04:44:33,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-26 04:44:33,908 INFO L142 QuantifierPusher]: treesize reduction 109, result has 51.3 percent of original size [2021-03-26 04:44:33,908 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:33,909 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,909 INFO L142 QuantifierPusher]: treesize reduction 90, result has 53.4 percent of original size [2021-03-26 04:44:33,910 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:33,910 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,911 INFO L142 QuantifierPusher]: treesize reduction 76, result has 44.9 percent of original size [2021-03-26 04:44:33,915 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:33,926 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,926 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,927 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-26 04:44:33,929 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:33,929 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:33,930 INFO L142 QuantifierPusher]: treesize reduction 20, result has 37.5 percent of original size [2021-03-26 04:44:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:33,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:33,959 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:44:33,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:33,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:33,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:33,962 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:33,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:33,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:33,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:33,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:33,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279099286] [2021-03-26 04:44:33,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:33,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:33,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:33,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:33,973 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 101 [2021-03-26 04:44:33,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 247 transitions, 4397 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) [2021-03-26 04:44:33,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:33,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 101 [2021-03-26 04:44:33,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:34,356 INFO L129 PetriNetUnfolder]: 306/745 cut-off events. [2021-03-26 04:44:34,356 INFO L130 PetriNetUnfolder]: For 71090/71090 co-relation queries the response was YES. [2021-03-26 04:44:34,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10723 conditions, 745 events. 306/745 cut-off events. For 71090/71090 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4893 event pairs, 30 based on Foata normal form. 2/744 useless extension candidates. Maximal degree in co-relation 10571. Up to 575 conditions per place. [2021-03-26 04:44:34,365 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 225 selfloop transitions, 24 changer transitions 0/254 dead transitions. [2021-03-26 04:44:34,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 254 transitions, 5212 flow [2021-03-26 04:44:34,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:44:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:44:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2021-03-26 04:44:34,366 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21923620933521923 [2021-03-26 04:44:34,366 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 155 transitions. [2021-03-26 04:44:34,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 155 transitions. [2021-03-26 04:44:34,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:34,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 155 transitions. [2021-03-26 04:44:34,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 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) [2021-03-26 04:44:34,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:34,367 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:34,367 INFO L185 Difference]: Start difference. First operand has 301 places, 247 transitions, 4397 flow. Second operand 7 states and 155 transitions. [2021-03-26 04:44:34,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 254 transitions, 5212 flow [2021-03-26 04:44:34,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 254 transitions, 5140 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-26 04:44:34,643 INFO L241 Difference]: Finished difference. Result has 303 places, 248 transitions, 4410 flow [2021-03-26 04:44:34,643 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4325, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4410, PETRI_PLACES=303, PETRI_TRANSITIONS=248} [2021-03-26 04:44:34,643 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 287 predicate places. [2021-03-26 04:44:34,643 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:34,644 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 303 places, 248 transitions, 4410 flow [2021-03-26 04:44:34,644 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 303 places, 248 transitions, 4410 flow [2021-03-26 04:44:34,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 303 places, 248 transitions, 4410 flow [2021-03-26 04:44:34,740 INFO L129 PetriNetUnfolder]: 301/748 cut-off events. [2021-03-26 04:44:34,740 INFO L130 PetriNetUnfolder]: For 69229/69265 co-relation queries the response was YES. [2021-03-26 04:44:34,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10046 conditions, 748 events. 301/748 cut-off events. For 69229/69265 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5160 event pairs, 33 based on Foata normal form. 3/742 useless extension candidates. Maximal degree in co-relation 9887. Up to 459 conditions per place. [2021-03-26 04:44:34,750 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 04:44:34,758 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:34,758 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:34,758 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-26 04:44:34,759 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 248 transitions, 4410 flow [2021-03-26 04:44:34,759 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) [2021-03-26 04:44:34,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:34,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:34,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable334 [2021-03-26 04:44:34,959 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:34,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2084379832, now seen corresponding path program 1 times [2021-03-26 04:44:34,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:34,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715393124] [2021-03-26 04:44:34,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:34,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:34,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:34,989 INFO L142 QuantifierPusher]: treesize reduction 109, result has 15.5 percent of original size [2021-03-26 04:44:34,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:44:34,999 INFO L142 QuantifierPusher]: treesize reduction 185, result has 32.0 percent of original size [2021-03-26 04:44:34,999 INFO L147 QuantifierPusher]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-03-26 04:44:35,041 INFO L142 QuantifierPusher]: treesize reduction 17, result has 55.3 percent of original size [2021-03-26 04:44:35,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 04:44:35,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:35,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:35,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715393124] [2021-03-26 04:44:35,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045264481] [2021-03-26 04:44:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:44:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:35,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:35,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:35,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:35,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,120 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:35,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:35,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:35,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,122 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:35,123 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:35,123 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:35,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:35,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:35,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:35,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:35,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,145 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:35,146 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:35,146 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:35,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:35,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:35,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-26 04:44:35,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:44:35,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-26 04:44:35,176 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-03-26 04:44:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:35,203 INFO L142 QuantifierPusher]: treesize reduction 13, result has 83.3 percent of original size [2021-03-26 04:44:35,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:44:35,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,204 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:35,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:35,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-03-26 04:44:35,207 INFO L142 QuantifierPusher]: treesize reduction 183, result has 9.9 percent of original size [2021-03-26 04:44:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:35,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:35,217 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:35,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:35,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:35,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:35,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222820041] [2021-03-26 04:44:35,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:35,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:35,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:35,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:35,229 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 101 [2021-03-26 04:44:35,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 248 transitions, 4410 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) [2021-03-26 04:44:35,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:35,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 101 [2021-03-26 04:44:35,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:35,632 INFO L129 PetriNetUnfolder]: 312/761 cut-off events. [2021-03-26 04:44:35,632 INFO L130 PetriNetUnfolder]: For 73271/73281 co-relation queries the response was YES. [2021-03-26 04:44:35,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10980 conditions, 761 events. 312/761 cut-off events. For 73271/73281 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 5026 event pairs, 22 based on Foata normal form. 10/768 useless extension candidates. Maximal degree in co-relation 10827. Up to 573 conditions per place. [2021-03-26 04:44:35,640 INFO L132 encePairwiseOnDemand]: 89/101 looper letters, 231 selfloop transitions, 25 changer transitions 0/261 dead transitions. [2021-03-26 04:44:35,640 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 261 transitions, 5339 flow [2021-03-26 04:44:35,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:44:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:44:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2021-03-26 04:44:35,641 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21782178217821782 [2021-03-26 04:44:35,641 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2021-03-26 04:44:35,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2021-03-26 04:44:35,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:35,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2021-03-26 04:44:35,641 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) [2021-03-26 04:44:35,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:35,642 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:35,642 INFO L185 Difference]: Start difference. First operand has 303 places, 248 transitions, 4410 flow. Second operand 7 states and 154 transitions. [2021-03-26 04:44:35,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 261 transitions, 5339 flow [2021-03-26 04:44:35,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 261 transitions, 5286 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-26 04:44:35,874 INFO L241 Difference]: Finished difference. Result has 306 places, 249 transitions, 4458 flow [2021-03-26 04:44:35,874 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4357, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4458, PETRI_PLACES=306, PETRI_TRANSITIONS=249} [2021-03-26 04:44:35,875 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 290 predicate places. [2021-03-26 04:44:35,875 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:35,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 249 transitions, 4458 flow [2021-03-26 04:44:35,875 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 249 transitions, 4458 flow [2021-03-26 04:44:35,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 306 places, 249 transitions, 4458 flow [2021-03-26 04:44:35,973 INFO L129 PetriNetUnfolder]: 307/761 cut-off events. [2021-03-26 04:44:35,973 INFO L130 PetriNetUnfolder]: For 71280/71308 co-relation queries the response was YES. [2021-03-26 04:44:35,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 761 events. 307/761 cut-off events. For 71280/71308 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5210 event pairs, 30 based on Foata normal form. 3/757 useless extension candidates. Maximal degree in co-relation 10142. Up to 471 conditions per place. [2021-03-26 04:44:35,982 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-26 04:44:35,990 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:35,990 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:35,990 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-26 04:44:35,991 INFO L480 AbstractCegarLoop]: Abstraction has has 306 places, 249 transitions, 4458 flow [2021-03-26 04:44:35,991 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) [2021-03-26 04:44:35,991 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:35,991 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:36,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340,54 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:36,195 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:36,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:36,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1227597418, now seen corresponding path program 1 times [2021-03-26 04:44:36,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:36,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707268937] [2021-03-26 04:44:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:36,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:36,220 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.4 percent of original size [2021-03-26 04:44:36,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:44:36,254 INFO L142 QuantifierPusher]: treesize reduction 50, result has 60.9 percent of original size [2021-03-26 04:44:36,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 04:44:36,323 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.5 percent of original size [2021-03-26 04:44:36,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:36,347 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:36,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:36,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:36,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707268937] [2021-03-26 04:44:36,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820739441] [2021-03-26 04:44:36,373 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 [2021-03-26 04:44:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:36,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-26 04:44:36,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:36,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:36,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,441 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:36,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,443 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,444 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,444 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:36,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:36,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,467 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:36,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:36,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,469 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,469 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,470 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:36,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:36,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:36,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:36,502 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.1 percent of original size [2021-03-26 04:44:36,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:36,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-26 04:44:36,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:36,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 04:44:36,506 INFO L142 QuantifierPusher]: treesize reduction 214, result has 39.0 percent of original size [2021-03-26 04:44:36,508 INFO L147 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size 124 [2021-03-26 04:44:36,508 INFO L142 QuantifierPusher]: treesize reduction 8, result has 93.9 percent of original size [2021-03-26 04:44:36,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:44:36,632 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2021-03-26 04:44:36,634 INFO L142 QuantifierPusher]: treesize reduction 13, result has 92.0 percent of original size [2021-03-26 04:44:36,634 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:36,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 144 [2021-03-26 04:44:36,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,636 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-03-26 04:44:36,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-03-26 04:44:36,639 INFO L142 QuantifierPusher]: treesize reduction 46, result has 82.4 percent of original size [2021-03-26 04:44:36,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,641 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:36,641 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:36,642 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,650 INFO L142 QuantifierPusher]: treesize reduction 192, result has 50.1 percent of original size [2021-03-26 04:44:36,651 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-03-26 04:44:36,652 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,653 INFO L142 QuantifierPusher]: treesize reduction 230, result has 22.6 percent of original size [2021-03-26 04:44:36,653 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:36,654 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,654 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,654 INFO L142 QuantifierPusher]: treesize reduction 35, result has 31.4 percent of original size [2021-03-26 04:44:36,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:44:36,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:36,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:36,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:36,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:36,711 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:44:36,711 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:36,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:44:36,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:36,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:44:36,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:44:36,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,718 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 5, 1] term [2021-03-26 04:44:36,718 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,719 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,719 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2021-03-26 04:44:36,719 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,720 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,721 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:44:36,721 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,722 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,722 INFO L142 QuantifierPusher]: treesize reduction 47, result has 45.3 percent of original size [2021-03-26 04:44:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:36,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:36,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:36,749 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:44:36,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:36,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:36,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,752 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:36,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:36,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:36,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,754 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,754 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:44:36,754 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,755 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,755 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:44:36,756 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:36,764 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:36,765 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:44:36,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:36,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:36,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:36,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358899376] [2021-03-26 04:44:36,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:36,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:36,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:36,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:36,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 101 [2021-03-26 04:44:36,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 249 transitions, 4458 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) [2021-03-26 04:44:36,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:36,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 101 [2021-03-26 04:44:36,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:37,766 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-03-26 04:44:37,958 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-03-26 04:44:38,013 INFO L129 PetriNetUnfolder]: 318/788 cut-off events. [2021-03-26 04:44:38,013 INFO L130 PetriNetUnfolder]: For 78433/78433 co-relation queries the response was YES. [2021-03-26 04:44:38,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11617 conditions, 788 events. 318/788 cut-off events. For 78433/78433 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5329 event pairs, 25 based on Foata normal form. 5/790 useless extension candidates. Maximal degree in co-relation 11463. Up to 617 conditions per place. [2021-03-26 04:44:38,022 INFO L132 encePairwiseOnDemand]: 88/101 looper letters, 224 selfloop transitions, 34 changer transitions 6/268 dead transitions. [2021-03-26 04:44:38,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 268 transitions, 5987 flow [2021-03-26 04:44:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 04:44:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 04:44:38,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 220 transitions. [2021-03-26 04:44:38,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16755521706016754 [2021-03-26 04:44:38,024 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 220 transitions. [2021-03-26 04:44:38,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 220 transitions. [2021-03-26 04:44:38,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:38,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 220 transitions. [2021-03-26 04:44:38,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 16.923076923076923) internal successors, (220), 13 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:38,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:38,025 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 101.0) internal successors, (1414), 14 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:38,025 INFO L185 Difference]: Start difference. First operand has 306 places, 249 transitions, 4458 flow. Second operand 13 states and 220 transitions. [2021-03-26 04:44:38,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 268 transitions, 5987 flow [2021-03-26 04:44:38,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 268 transitions, 5887 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:38,315 INFO L241 Difference]: Finished difference. Result has 317 places, 257 transitions, 4956 flow [2021-03-26 04:44:38,315 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=4358, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4956, PETRI_PLACES=317, PETRI_TRANSITIONS=257} [2021-03-26 04:44:38,315 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 301 predicate places. [2021-03-26 04:44:38,315 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:38,315 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 257 transitions, 4956 flow [2021-03-26 04:44:38,315 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 257 transitions, 4956 flow [2021-03-26 04:44:38,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 315 places, 257 transitions, 4956 flow [2021-03-26 04:44:38,432 INFO L129 PetriNetUnfolder]: 311/779 cut-off events. [2021-03-26 04:44:38,432 INFO L130 PetriNetUnfolder]: For 81661/81697 co-relation queries the response was YES. [2021-03-26 04:44:38,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10998 conditions, 779 events. 311/779 cut-off events. For 81661/81697 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5395 event pairs, 32 based on Foata normal form. 3/773 useless extension candidates. Maximal degree in co-relation 10832. Up to 482 conditions per place. [2021-03-26 04:44:38,443 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 04:44:39,000 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:39,000 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 04:44:39,000 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 685 [2021-03-26 04:44:39,001 INFO L480 AbstractCegarLoop]: Abstraction has has 315 places, 257 transitions, 4982 flow [2021-03-26 04:44:39,001 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) [2021-03-26 04:44:39,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:39,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:39,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable343 [2021-03-26 04:44:39,201 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:39,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:39,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1162053348, now seen corresponding path program 1 times [2021-03-26 04:44:39,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:39,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117493704] [2021-03-26 04:44:39,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:39,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,226 INFO L142 QuantifierPusher]: treesize reduction 961, result has 13.7 percent of original size [2021-03-26 04:44:39,227 INFO L147 QuantifierPusher]: treesize reduction 98, result has 35.9 percent of original size 55 [2021-03-26 04:44:39,262 INFO L142 QuantifierPusher]: treesize reduction 3440, result has 15.0 percent of original size [2021-03-26 04:44:39,264 INFO L147 QuantifierPusher]: treesize reduction 490, result has 19.3 percent of original size 117 [2021-03-26 04:44:39,406 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 25 [2021-03-26 04:44:39,407 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.4 percent of original size [2021-03-26 04:44:39,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:39,434 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.9 percent of original size [2021-03-26 04:44:39,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:39,455 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:39,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:39,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:39,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117493704] [2021-03-26 04:44:39,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835114229] [2021-03-26 04:44:39,483 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 [2021-03-26 04:44:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:39,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 30 conjunts are in the unsatisfiable core [2021-03-26 04:44:39,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:39,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:39,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:39,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,552 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,552 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,552 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,553 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:39,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:39,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:39,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:39,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:39,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,572 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,573 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,574 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:39,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:39,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:39,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:39,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.0 percent of original size [2021-03-26 04:44:39,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:39,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:44:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:44:39,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 728 [2021-03-26 04:44:39,627 INFO L142 QuantifierPusher]: treesize reduction 10728, result has 1.4 percent of original size [2021-03-26 04:44:39,628 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size 138 [2021-03-26 04:44:39,629 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.5 percent of original size [2021-03-26 04:44:39,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 138 [2021-03-26 04:44:39,714 INFO L142 QuantifierPusher]: treesize reduction 1, result has 99.3 percent of original size [2021-03-26 04:44:39,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:39,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 04:44:39,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-03-26 04:44:39,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-03-26 04:44:39,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,722 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,723 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 1] term [2021-03-26 04:44:39,723 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,723 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,724 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:44:39,724 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,724 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,726 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.1 percent of original size 51 [2021-03-26 04:44:39,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,727 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 2, 2, 1] term [2021-03-26 04:44:39,727 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,728 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,728 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2021-03-26 04:44:39,728 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,729 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-26 04:44:39,730 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:39,730 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,731 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,732 INFO L142 QuantifierPusher]: treesize reduction 123, result has 41.4 percent of original size [2021-03-26 04:44:39,733 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-03-26 04:44:39,734 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,734 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,734 INFO L142 QuantifierPusher]: treesize reduction 90, result has 13.5 percent of original size [2021-03-26 04:44:39,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 04:44:39,736 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size 25 [2021-03-26 04:44:39,736 INFO L147 QuantifierPusher]: treesize reduction 7, result has 88.1 percent of original size 52 [2021-03-26 04:44:39,737 INFO L142 QuantifierPusher]: treesize reduction 7, result has 88.1 percent of original size [2021-03-26 04:44:39,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:39,778 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.1 percent of original size [2021-03-26 04:44:39,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:39,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-03-26 04:44:39,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-03-26 04:44:39,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-03-26 04:44:39,785 INFO L142 QuantifierPusher]: treesize reduction 23, result has 84.0 percent of original size [2021-03-26 04:44:39,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,787 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:39,788 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:39,788 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,789 INFO L142 QuantifierPusher]: treesize reduction 99, result has 48.2 percent of original size [2021-03-26 04:44:39,791 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:39,792 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,792 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,792 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-26 04:44:39,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:44:39,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:39,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,823 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:39,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:39,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:39,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-26 04:44:39,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:39,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,827 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2021-03-26 04:44:39,827 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:39,827 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,828 INFO L147 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size 19 [2021-03-26 04:44:39,828 INFO L142 QuantifierPusher]: treesize reduction -2, result has 111.8 percent of original size [2021-03-26 04:44:39,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:39,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:39,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:39,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:39,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465575181] [2021-03-26 04:44:39,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:39,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:39,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:39,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:39,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 104 [2021-03-26 04:44:39,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 257 transitions, 4982 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) [2021-03-26 04:44:39,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:39,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 104 [2021-03-26 04:44:39,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:40,812 INFO L129 PetriNetUnfolder]: 321/804 cut-off events. [2021-03-26 04:44:40,812 INFO L130 PetriNetUnfolder]: For 88718/88728 co-relation queries the response was YES. [2021-03-26 04:44:40,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12252 conditions, 804 events. 321/804 cut-off events. For 88718/88728 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 5507 event pairs, 22 based on Foata normal form. 8/809 useless extension candidates. Maximal degree in co-relation 12092. Up to 625 conditions per place. [2021-03-26 04:44:40,822 INFO L132 encePairwiseOnDemand]: 90/104 looper letters, 236 selfloop transitions, 38 changer transitions 3/281 dead transitions. [2021-03-26 04:44:40,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 281 transitions, 6379 flow [2021-03-26 04:44:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 04:44:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 04:44:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 231 transitions. [2021-03-26 04:44:40,823 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15865384615384615 [2021-03-26 04:44:40,823 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 231 transitions. [2021-03-26 04:44:40,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 231 transitions. [2021-03-26 04:44:40,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:40,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 231 transitions. [2021-03-26 04:44:40,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 16.5) internal successors, (231), 14 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) [2021-03-26 04:44:40,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:40,825 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:40,825 INFO L185 Difference]: Start difference. First operand has 315 places, 257 transitions, 4982 flow. Second operand 14 states and 231 transitions. [2021-03-26 04:44:40,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 281 transitions, 6379 flow [2021-03-26 04:44:41,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 281 transitions, 5928 flow, removed 221 selfloop flow, removed 4 redundant places. [2021-03-26 04:44:41,165 INFO L241 Difference]: Finished difference. Result has 327 places, 271 transitions, 5138 flow [2021-03-26 04:44:41,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4553, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5138, PETRI_PLACES=327, PETRI_TRANSITIONS=271} [2021-03-26 04:44:41,165 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 311 predicate places. [2021-03-26 04:44:41,165 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:41,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 271 transitions, 5138 flow [2021-03-26 04:44:41,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 271 transitions, 5138 flow [2021-03-26 04:44:41,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 271 transitions, 5138 flow [2021-03-26 04:44:41,296 INFO L129 PetriNetUnfolder]: 316/798 cut-off events. [2021-03-26 04:44:41,296 INFO L130 PetriNetUnfolder]: For 89623/89656 co-relation queries the response was YES. [2021-03-26 04:44:41,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11373 conditions, 798 events. 316/798 cut-off events. For 89623/89656 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5554 event pairs, 28 based on Foata normal form. 6/797 useless extension candidates. Maximal degree in co-relation 11205. Up to 489 conditions per place. [2021-03-26 04:44:41,306 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 04:44:41,539 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:41,539 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 04:44:41,539 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 374 [2021-03-26 04:44:41,539 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 271 transitions, 5146 flow [2021-03-26 04:44:41,539 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) [2021-03-26 04:44:41,539 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:41,539 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:41,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable354 [2021-03-26 04:44:41,740 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:41,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:41,740 INFO L82 PathProgramCache]: Analyzing trace with hash 859830704, now seen corresponding path program 2 times [2021-03-26 04:44:41,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:41,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405789771] [2021-03-26 04:44:41,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:41,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:41,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:41,759 INFO L142 QuantifierPusher]: treesize reduction 888, result has 11.6 percent of original size [2021-03-26 04:44:41,760 INFO L147 QuantifierPusher]: treesize reduction 31, result has 73.3 percent of original size 85 [2021-03-26 04:44:41,787 INFO L142 QuantifierPusher]: treesize reduction 3551, result has 14.8 percent of original size [2021-03-26 04:44:41,790 INFO L147 QuantifierPusher]: treesize reduction 481, result has 22.2 percent of original size 137 [2021-03-26 04:44:41,925 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2021-03-26 04:44:41,926 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.0 percent of original size [2021-03-26 04:44:41,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:41,964 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size [2021-03-26 04:44:41,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:41,983 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:41,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:41,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:41,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:42,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405789771] [2021-03-26 04:44:42,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125527738] [2021-03-26 04:44:42,004 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 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 [2021-03-26 04:44:42,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 04:44:42,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 04:44:42,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 33 conjunts are in the unsatisfiable core [2021-03-26 04:44:42,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:42,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:42,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:42,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:42,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:42,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:42,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:42,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,051 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:42,052 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,052 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:42,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:44:42,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:42,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-26 04:44:42,073 INFO L142 QuantifierPusher]: treesize reduction 11, result has 85.9 percent of original size [2021-03-26 04:44:42,073 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:42,073 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,074 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,074 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:42,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:42,075 INFO L147 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size 32 [2021-03-26 04:44:42,076 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-26 04:44:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-26 04:44:42,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 97.1 percent of original size [2021-03-26 04:44:42,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:42,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 282 [2021-03-26 04:44:42,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 279 [2021-03-26 04:44:42,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 735 [2021-03-26 04:44:42,113 INFO L142 QuantifierPusher]: treesize reduction 10728, result has 1.5 percent of original size [2021-03-26 04:44:42,114 INFO L147 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size 145 [2021-03-26 04:44:42,115 INFO L142 QuantifierPusher]: treesize reduction 8, result has 94.8 percent of original size [2021-03-26 04:44:42,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-03-26 04:44:42,183 INFO L142 QuantifierPusher]: treesize reduction 13, result has 93.7 percent of original size [2021-03-26 04:44:42,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 04:44:42,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-03-26 04:44:42,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,186 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-03-26 04:44:42,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-03-26 04:44:42,189 INFO L142 QuantifierPusher]: treesize reduction 46, result has 84.8 percent of original size [2021-03-26 04:44:42,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,190 INFO L147 QuantifierPusher]: treesize reduction 8, result has 80.5 percent of original size 33 [2021-03-26 04:44:42,190 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2021-03-26 04:44:42,191 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,192 INFO L142 QuantifierPusher]: treesize reduction 274, result has 40.8 percent of original size [2021-03-26 04:44:42,194 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 10 disjuncts [2021-03-26 04:44:42,194 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,194 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,195 INFO L142 QuantifierPusher]: treesize reduction 161, result has 36.9 percent of original size [2021-03-26 04:44:42,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:42,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:42,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-26 04:44:42,234 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.4 percent of original size [2021-03-26 04:44:42,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:42,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:44:42,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,236 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-26 04:44:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-26 04:44:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:44:42,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,240 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 1] term [2021-03-26 04:44:42,240 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:42,240 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,242 INFO L147 QuantifierPusher]: treesize reduction 21, result has 70.8 percent of original size 51 [2021-03-26 04:44:42,242 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 6, 2, 2, 1] term [2021-03-26 04:44:42,242 INFO L725 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2021-03-26 04:44:42,243 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,244 INFO L147 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size 29 [2021-03-26 04:44:42,244 INFO L142 QuantifierPusher]: treesize reduction -2, result has 107.4 percent of original size [2021-03-26 04:44:42,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:42,273 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 04:44:42,273 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:42,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:42,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,274 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,275 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 04:44:42,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-26 04:44:42,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 04:44:42,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,277 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,278 INFO L427 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2021-03-26 04:44:42,278 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:42,279 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,280 INFO L147 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size 29 [2021-03-26 04:44:42,280 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:42,280 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:42,281 INFO L142 QuantifierPusher]: treesize reduction 71, result has 29.0 percent of original size [2021-03-26 04:44:42,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:42,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:42,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:42,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-03-26 04:44:42,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387934040] [2021-03-26 04:44:42,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-26 04:44:42,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:42,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-26 04:44:42,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-03-26 04:44:42,305 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 105 [2021-03-26 04:44:42,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 271 transitions, 5146 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) [2021-03-26 04:44:42,306 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:42,306 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 105 [2021-03-26 04:44:42,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:43,163 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-03-26 04:44:43,520 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-03-26 04:44:43,599 INFO L129 PetriNetUnfolder]: 325/822 cut-off events. [2021-03-26 04:44:43,599 INFO L130 PetriNetUnfolder]: For 96717/96727 co-relation queries the response was YES. [2021-03-26 04:44:43,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12717 conditions, 822 events. 325/822 cut-off events. For 96717/96727 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5712 event pairs, 29 based on Foata normal form. 10/829 useless extension candidates. Maximal degree in co-relation 12555. Up to 630 conditions per place. [2021-03-26 04:44:43,608 INFO L132 encePairwiseOnDemand]: 88/105 looper letters, 250 selfloop transitions, 38 changer transitions 5/297 dead transitions. [2021-03-26 04:44:43,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 297 transitions, 7134 flow [2021-03-26 04:44:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-26 04:44:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-26 04:44:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 273 transitions. [2021-03-26 04:44:43,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.15294117647058825 [2021-03-26 04:44:43,610 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 273 transitions. [2021-03-26 04:44:43,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 273 transitions. [2021-03-26 04:44:43,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:43,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 273 transitions. [2021-03-26 04:44:43,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 16.058823529411764) internal successors, (273), 17 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:43,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:43,611 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 105.0) internal successors, (1890), 18 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:43,611 INFO L185 Difference]: Start difference. First operand has 325 places, 271 transitions, 5146 flow. Second operand 17 states and 273 transitions. [2021-03-26 04:44:43,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 297 transitions, 7134 flow [2021-03-26 04:44:44,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 297 transitions, 6584 flow, removed 262 selfloop flow, removed 4 redundant places. [2021-03-26 04:44:44,039 INFO L241 Difference]: Finished difference. Result has 343 places, 278 transitions, 5267 flow [2021-03-26 04:44:44,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=4744, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5267, PETRI_PLACES=343, PETRI_TRANSITIONS=278} [2021-03-26 04:44:44,039 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 327 predicate places. [2021-03-26 04:44:44,039 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:44,039 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 343 places, 278 transitions, 5267 flow [2021-03-26 04:44:44,039 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 343 places, 278 transitions, 5267 flow [2021-03-26 04:44:44,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 341 places, 278 transitions, 5267 flow [2021-03-26 04:44:44,186 INFO L129 PetriNetUnfolder]: 320/817 cut-off events. [2021-03-26 04:44:44,186 INFO L130 PetriNetUnfolder]: For 97274/97297 co-relation queries the response was YES. [2021-03-26 04:44:44,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11824 conditions, 817 events. 320/817 cut-off events. For 97274/97297 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5764 event pairs, 32 based on Foata normal form. 6/818 useless extension candidates. Maximal degree in co-relation 11650. Up to 489 conditions per place. [2021-03-26 04:44:44,198 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 04:44:44,525 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:44,525 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 04:44:44,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 486 [2021-03-26 04:44:44,525 INFO L480 AbstractCegarLoop]: Abstraction has has 341 places, 278 transitions, 5287 flow [2021-03-26 04:44:44,525 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) [2021-03-26 04:44:44,526 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:44,526 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:44,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable366 [2021-03-26 04:44:44,740 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:44,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:44,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1683026821, now seen corresponding path program 1 times [2021-03-26 04:44:44,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:44,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194514927] [2021-03-26 04:44:44,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:44,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:44,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:44,773 INFO L142 QuantifierPusher]: treesize reduction 8292, result has 3.3 percent of original size [2021-03-26 04:44:44,774 INFO L147 QuantifierPusher]: treesize reduction 240, result has 16.1 percent of original size 46 [2021-03-26 04:44:44,867 INFO L142 QuantifierPusher]: treesize reduction 15402, result has 13.0 percent of original size [2021-03-26 04:44:44,874 INFO L147 QuantifierPusher]: treesize reduction 2124, result has 7.6 percent of original size 175 [2021-03-26 04:44:45,220 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 36 [2021-03-26 04:44:45,221 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.1 percent of original size [2021-03-26 04:44:45,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-26 04:44:45,247 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.8 percent of original size [2021-03-26 04:44:45,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-26 04:44:45,294 INFO L142 QuantifierPusher]: treesize reduction -1, result has 107.7 percent of original size [2021-03-26 04:44:45,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 04:44:45,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 04:44:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:45,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194514927] [2021-03-26 04:44:45,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028928419] [2021-03-26 04:44:45,317 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 [2021-03-26 04:44:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:45,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:45,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:45,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,364 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:45,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:45,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,366 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:45,366 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:45,367 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:45,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:45,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:45,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:45,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,389 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:45,389 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,389 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:45,390 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:45,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:45,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:45,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 94.1 percent of original size [2021-03-26 04:44:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 04:44:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-03-26 04:44:45,419 INFO L142 QuantifierPusher]: treesize reduction 38, result has 51.9 percent of original size [2021-03-26 04:44:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 04:44:45,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-26 04:44:45,446 INFO L142 QuantifierPusher]: treesize reduction 13, result has 85.9 percent of original size [2021-03-26 04:44:45,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-26 04:44:45,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,448 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:45,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:44:45,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-03-26 04:44:45,452 INFO L142 QuantifierPusher]: treesize reduction 99, result has 25.6 percent of original size [2021-03-26 04:44:45,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:45,469 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:45,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:45,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:45,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:45,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-03-26 04:44:45,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774102532] [2021-03-26 04:44:45,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-26 04:44:45,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:45,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-26 04:44:45,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-03-26 04:44:45,474 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 107 [2021-03-26 04:44:45,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 278 transitions, 5287 flow. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 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) [2021-03-26 04:44:45,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:45,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 107 [2021-03-26 04:44:45,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:46,320 INFO L129 PetriNetUnfolder]: 326/812 cut-off events. [2021-03-26 04:44:46,320 INFO L130 PetriNetUnfolder]: For 103669/103679 co-relation queries the response was YES. [2021-03-26 04:44:46,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12714 conditions, 812 events. 326/812 cut-off events. For 103669/103679 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5553 event pairs, 25 based on Foata normal form. 9/818 useless extension candidates. Maximal degree in co-relation 12546. Up to 635 conditions per place. [2021-03-26 04:44:46,329 INFO L132 encePairwiseOnDemand]: 91/107 looper letters, 247 selfloop transitions, 35 changer transitions 0/286 dead transitions. [2021-03-26 04:44:46,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 286 transitions, 6298 flow [2021-03-26 04:44:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 04:44:46,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 04:44:46,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 209 transitions. [2021-03-26 04:44:46,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.16277258566978192 [2021-03-26 04:44:46,331 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 209 transitions. [2021-03-26 04:44:46,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 209 transitions. [2021-03-26 04:44:46,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:46,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 209 transitions. [2021-03-26 04:44:46,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 17.416666666666668) internal successors, (209), 12 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:46,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:46,332 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:46,332 INFO L185 Difference]: Start difference. First operand has 341 places, 278 transitions, 5287 flow. Second operand 12 states and 209 transitions. [2021-03-26 04:44:46,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 286 transitions, 6298 flow [2021-03-26 04:44:46,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 286 transitions, 5865 flow, removed 199 selfloop flow, removed 9 redundant places. [2021-03-26 04:44:46,680 INFO L241 Difference]: Finished difference. Result has 342 places, 276 transitions, 5016 flow [2021-03-26 04:44:46,680 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4850, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5016, PETRI_PLACES=342, PETRI_TRANSITIONS=276} [2021-03-26 04:44:46,680 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 326 predicate places. [2021-03-26 04:44:46,680 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:46,680 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 342 places, 276 transitions, 5016 flow [2021-03-26 04:44:46,680 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 342 places, 276 transitions, 5016 flow [2021-03-26 04:44:46,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 342 places, 276 transitions, 5016 flow [2021-03-26 04:44:46,793 INFO L129 PetriNetUnfolder]: 321/812 cut-off events. [2021-03-26 04:44:46,793 INFO L130 PetriNetUnfolder]: For 99037/99078 co-relation queries the response was YES. [2021-03-26 04:44:46,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11646 conditions, 812 events. 321/812 cut-off events. For 99037/99078 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5740 event pairs, 32 based on Foata normal form. 3/806 useless extension candidates. Maximal degree in co-relation 11473. Up to 485 conditions per place. [2021-03-26 04:44:46,805 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 04:44:46,815 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:46,815 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:46,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-26 04:44:46,815 INFO L480 AbstractCegarLoop]: Abstraction has has 342 places, 276 transitions, 5016 flow [2021-03-26 04:44:46,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 12 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) [2021-03-26 04:44:46,815 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:46,815 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:47,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:47,016 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash 651566127, now seen corresponding path program 1 times [2021-03-26 04:44:47,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:47,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198577610] [2021-03-26 04:44:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:47,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:47,037 INFO L142 QuantifierPusher]: treesize reduction 13, result has 60.6 percent of original size [2021-03-26 04:44:47,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 04:44:47,047 INFO L142 QuantifierPusher]: treesize reduction 128, result has 14.7 percent of original size [2021-03-26 04:44:47,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:47,061 INFO L142 QuantifierPusher]: treesize reduction 128, result has 11.7 percent of original size [2021-03-26 04:44:47,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:47,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:47,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198577610] [2021-03-26 04:44:47,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553448514] [2021-03-26 04:44:47,072 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 [2021-03-26 04:44:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:47,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:47,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:47,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:47,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:47,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:47,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,148 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:47,148 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,149 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:44:47,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:44:47,190 INFO L142 QuantifierPusher]: treesize reduction 25, result has 78.4 percent of original size [2021-03-26 04:44:47,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:47,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:47,266 INFO L142 QuantifierPusher]: treesize reduction 13, result has 87.0 percent of original size [2021-03-26 04:44:47,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:44:47,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:47,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-03-26 04:44:47,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,268 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:47,269 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,269 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:47,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:47,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 04:44:47,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-26 04:44:47,308 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.7 percent of original size [2021-03-26 04:44:47,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-26 04:44:47,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,309 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-26 04:44:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-26 04:44:47,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,311 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,312 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:47,312 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,312 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,312 INFO L142 QuantifierPusher]: treesize reduction 28, result has 48.1 percent of original size [2021-03-26 04:44:47,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:44:47,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:44:47,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:47,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-26 04:44:47,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 82.4 percent of original size [2021-03-26 04:44:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,335 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-26 04:44:47,336 INFO L142 QuantifierPusher]: treesize reduction 32, result has 3.0 percent of original size [2021-03-26 04:44:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:47,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:47,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:47,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-03-26 04:44:47,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653357481] [2021-03-26 04:44:47,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 04:44:47,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:47,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 04:44:47,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-26 04:44:47,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 107 [2021-03-26 04:44:47,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 276 transitions, 5016 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) [2021-03-26 04:44:47,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:47,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 107 [2021-03-26 04:44:47,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:47,911 INFO L129 PetriNetUnfolder]: 323/798 cut-off events. [2021-03-26 04:44:47,912 INFO L130 PetriNetUnfolder]: For 100289/100299 co-relation queries the response was YES. [2021-03-26 04:44:47,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12314 conditions, 798 events. 323/798 cut-off events. For 100289/100299 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5371 event pairs, 24 based on Foata normal form. 7/802 useless extension candidates. Maximal degree in co-relation 12147. Up to 599 conditions per place. [2021-03-26 04:44:47,925 INFO L132 encePairwiseOnDemand]: 89/107 looper letters, 235 selfloop transitions, 36 changer transitions 2/278 dead transitions. [2021-03-26 04:44:47,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 278 transitions, 5800 flow [2021-03-26 04:44:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 04:44:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 04:44:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 238 transitions. [2021-03-26 04:44:47,927 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1710999281092739 [2021-03-26 04:44:47,927 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 238 transitions. [2021-03-26 04:44:47,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 238 transitions. [2021-03-26 04:44:47,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:47,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 238 transitions. [2021-03-26 04:44:47,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 18.307692307692307) internal successors, (238), 13 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:47,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:47,929 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 107.0) internal successors, (1498), 14 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:47,929 INFO L185 Difference]: Start difference. First operand has 342 places, 276 transitions, 5016 flow. Second operand 13 states and 238 transitions. [2021-03-26 04:44:47,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 278 transitions, 5800 flow [2021-03-26 04:44:48,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 278 transitions, 5635 flow, removed 41 selfloop flow, removed 14 redundant places. [2021-03-26 04:44:48,281 INFO L241 Difference]: Finished difference. Result has 340 places, 268 transitions, 4830 flow [2021-03-26 04:44:48,281 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4768, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4830, PETRI_PLACES=340, PETRI_TRANSITIONS=268} [2021-03-26 04:44:48,282 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 324 predicate places. [2021-03-26 04:44:48,282 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:48,282 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 268 transitions, 4830 flow [2021-03-26 04:44:48,282 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 268 transitions, 4830 flow [2021-03-26 04:44:48,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 336 places, 268 transitions, 4830 flow [2021-03-26 04:44:48,422 INFO L129 PetriNetUnfolder]: 318/799 cut-off events. [2021-03-26 04:44:48,422 INFO L130 PetriNetUnfolder]: For 95908/95927 co-relation queries the response was YES. [2021-03-26 04:44:48,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11421 conditions, 799 events. 318/799 cut-off events. For 95908/95927 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5559 event pairs, 29 based on Foata normal form. 5/797 useless extension candidates. Maximal degree in co-relation 11250. Up to 482 conditions per place. [2021-03-26 04:44:48,433 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 04:44:48,442 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:48,442 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:48,442 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 160 [2021-03-26 04:44:48,442 INFO L480 AbstractCegarLoop]: Abstraction has has 336 places, 268 transitions, 4830 flow [2021-03-26 04:44:48,442 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) [2021-03-26 04:44:48,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:48,442 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:48,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable378 [2021-03-26 04:44:48,643 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:48,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:48,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1302521247, now seen corresponding path program 1 times [2021-03-26 04:44:48,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:48,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042689689] [2021-03-26 04:44:48,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:48,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:48,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:48,658 INFO L142 QuantifierPusher]: treesize reduction 28, result has 26.3 percent of original size [2021-03-26 04:44:48,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:48,666 INFO L142 QuantifierPusher]: treesize reduction 135, result has 48.3 percent of original size [2021-03-26 04:44:48,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 04:44:48,708 INFO L142 QuantifierPusher]: treesize reduction 80, result has 17.5 percent of original size [2021-03-26 04:44:48,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 04:44:48,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:48,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-03-26 04:44:48,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:48,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:48,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042689689] [2021-03-26 04:44:48,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 04:44:48,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 04:44:48,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182757828] [2021-03-26 04:44:48,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 04:44:48,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:48,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 04:44:48,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 04:44:48,722 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 107 [2021-03-26 04:44:48,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 268 transitions, 4830 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) [2021-03-26 04:44:48,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:48,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 107 [2021-03-26 04:44:48,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:49,050 INFO L129 PetriNetUnfolder]: 322/793 cut-off events. [2021-03-26 04:44:49,051 INFO L130 PetriNetUnfolder]: For 96722/96722 co-relation queries the response was YES. [2021-03-26 04:44:49,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12066 conditions, 793 events. 322/793 cut-off events. For 96722/96722 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5306 event pairs, 22 based on Foata normal form. 1/791 useless extension candidates. Maximal degree in co-relation 11901. Up to 612 conditions per place. [2021-03-26 04:44:49,061 INFO L132 encePairwiseOnDemand]: 94/107 looper letters, 236 selfloop transitions, 24 changer transitions 2/267 dead transitions. [2021-03-26 04:44:49,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 267 transitions, 5333 flow [2021-03-26 04:44:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 04:44:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 04:44:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2021-03-26 04:44:49,062 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21962616822429906 [2021-03-26 04:44:49,062 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 141 transitions. [2021-03-26 04:44:49,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 141 transitions. [2021-03-26 04:44:49,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:49,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 141 transitions. [2021-03-26 04:44:49,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:49,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:49,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:49,063 INFO L185 Difference]: Start difference. First operand has 336 places, 268 transitions, 4830 flow. Second operand 6 states and 141 transitions. [2021-03-26 04:44:49,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 267 transitions, 5333 flow [2021-03-26 04:44:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 267 transitions, 5254 flow, removed 1 selfloop flow, removed 9 redundant places. [2021-03-26 04:44:49,412 INFO L241 Difference]: Finished difference. Result has 332 places, 264 transitions, 4695 flow [2021-03-26 04:44:49,412 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4680, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4695, PETRI_PLACES=332, PETRI_TRANSITIONS=264} [2021-03-26 04:44:49,412 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 316 predicate places. [2021-03-26 04:44:49,412 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:49,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 332 places, 264 transitions, 4695 flow [2021-03-26 04:44:49,412 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 332 places, 264 transitions, 4695 flow [2021-03-26 04:44:49,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 324 places, 264 transitions, 4695 flow [2021-03-26 04:44:49,528 INFO L129 PetriNetUnfolder]: 317/788 cut-off events. [2021-03-26 04:44:49,528 INFO L130 PetriNetUnfolder]: For 94785/94812 co-relation queries the response was YES. [2021-03-26 04:44:49,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11243 conditions, 788 events. 317/788 cut-off events. For 94785/94812 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5442 event pairs, 29 based on Foata normal form. 5/784 useless extension candidates. Maximal degree in co-relation 11073. Up to 479 conditions per place. [2021-03-26 04:44:49,540 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 04:44:49,549 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:49,549 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:49,549 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-03-26 04:44:49,549 INFO L480 AbstractCegarLoop]: Abstraction has has 324 places, 264 transitions, 4695 flow [2021-03-26 04:44:49,549 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) [2021-03-26 04:44:49,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:49,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:49,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-03-26 04:44:49,550 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:49,550 INFO L82 PathProgramCache]: Analyzing trace with hash 936714224, now seen corresponding path program 1 times [2021-03-26 04:44:49,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:49,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941791119] [2021-03-26 04:44:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:49,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:49,598 INFO L142 QuantifierPusher]: treesize reduction 3820, result has 4.6 percent of original size [2021-03-26 04:44:49,599 INFO L147 QuantifierPusher]: treesize reduction 83, result has 55.1 percent of original size 102 [2021-03-26 04:44:49,674 INFO L142 QuantifierPusher]: treesize reduction 17, result has 57.5 percent of original size [2021-03-26 04:44:49,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:49,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-26 04:44:49,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:49,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:49,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941791119] [2021-03-26 04:44:49,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587864632] [2021-03-26 04:44:49,707 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 [2021-03-26 04:44:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:49,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 21 conjunts are in the unsatisfiable core [2021-03-26 04:44:49,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:49,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:49,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:49,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:49,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,761 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:49,762 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,762 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:49,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:49,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:49,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:49,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:49,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:49,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:49,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,782 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:49,783 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,783 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,783 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:49,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:49,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:49,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:49,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 95.2 percent of original size [2021-03-26 04:44:49,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-03-26 04:44:49,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:44:49,814 INFO L142 QuantifierPusher]: treesize reduction 100, result has 38.3 percent of original size [2021-03-26 04:44:49,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 04:44:49,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-26 04:44:49,852 INFO L142 QuantifierPusher]: treesize reduction 13, result has 88.5 percent of original size [2021-03-26 04:44:49,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:44:49,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,853 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-03-26 04:44:49,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-03-26 04:44:49,856 INFO L142 QuantifierPusher]: treesize reduction 25, result has 83.8 percent of original size [2021-03-26 04:44:49,856 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:49,857 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,857 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,858 INFO L142 QuantifierPusher]: treesize reduction 90, result has 59.3 percent of original size [2021-03-26 04:44:49,860 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-03-26 04:44:49,860 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,861 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,876 INFO L142 QuantifierPusher]: treesize reduction 90, result has 45.8 percent of original size [2021-03-26 04:44:49,877 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:44:49,878 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,879 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.9 percent of original size [2021-03-26 04:44:49,881 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-03-26 04:44:49,882 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:49,883 INFO L142 QuantifierPusher]: treesize reduction 34, result has 43.3 percent of original size [2021-03-26 04:44:49,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:49,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 04:44:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:49,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:49,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:49,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 04:44:49,908 INFO L142 QuantifierPusher]: treesize reduction 11, result has 38.9 percent of original size [2021-03-26 04:44:49,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:49,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:49,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:49,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:49,910 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:49,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:49,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:49,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:49,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-03-26 04:44:49,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776596727] [2021-03-26 04:44:49,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 04:44:49,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:49,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 04:44:49,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-26 04:44:49,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 107 [2021-03-26 04:44:49,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 264 transitions, 4695 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) [2021-03-26 04:44:49,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:49,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 107 [2021-03-26 04:44:49,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:50,496 INFO L129 PetriNetUnfolder]: 325/796 cut-off events. [2021-03-26 04:44:50,496 INFO L130 PetriNetUnfolder]: For 100476/100486 co-relation queries the response was YES. [2021-03-26 04:44:50,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12216 conditions, 796 events. 325/796 cut-off events. For 100476/100486 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5349 event pairs, 24 based on Foata normal form. 8/801 useless extension candidates. Maximal degree in co-relation 12052. Up to 595 conditions per place. [2021-03-26 04:44:50,506 INFO L132 encePairwiseOnDemand]: 92/107 looper letters, 229 selfloop transitions, 40 changer transitions 0/274 dead transitions. [2021-03-26 04:44:50,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 274 transitions, 5697 flow [2021-03-26 04:44:50,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 04:44:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 04:44:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2021-03-26 04:44:50,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.18096856414613424 [2021-03-26 04:44:50,507 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 213 transitions. [2021-03-26 04:44:50,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 213 transitions. [2021-03-26 04:44:50,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:50,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 213 transitions. [2021-03-26 04:44:50,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 19.363636363636363) internal successors, (213), 11 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:50,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:50,508 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 107.0) internal successors, (1284), 12 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:50,508 INFO L185 Difference]: Start difference. First operand has 324 places, 264 transitions, 4695 flow. Second operand 11 states and 213 transitions. [2021-03-26 04:44:50,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 274 transitions, 5697 flow [2021-03-26 04:44:50,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 274 transitions, 5634 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-03-26 04:44:50,859 INFO L241 Difference]: Finished difference. Result has 330 places, 267 transitions, 4950 flow [2021-03-26 04:44:50,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4615, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4950, PETRI_PLACES=330, PETRI_TRANSITIONS=267} [2021-03-26 04:44:50,860 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 314 predicate places. [2021-03-26 04:44:50,860 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:50,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 267 transitions, 4950 flow [2021-03-26 04:44:50,860 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 267 transitions, 4950 flow [2021-03-26 04:44:50,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 267 transitions, 4950 flow [2021-03-26 04:44:50,978 INFO L129 PetriNetUnfolder]: 320/798 cut-off events. [2021-03-26 04:44:50,978 INFO L130 PetriNetUnfolder]: For 98658/98694 co-relation queries the response was YES. [2021-03-26 04:44:50,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11568 conditions, 798 events. 320/798 cut-off events. For 98658/98694 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5524 event pairs, 28 based on Foata normal form. 3/792 useless extension candidates. Maximal degree in co-relation 11396. Up to 489 conditions per place. [2021-03-26 04:44:50,996 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 04:44:51,007 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:51,008 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:51,008 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-26 04:44:51,008 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 267 transitions, 4950 flow [2021-03-26 04:44:51,008 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) [2021-03-26 04:44:51,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:51,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:51,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:51,209 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:51,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:51,209 INFO L82 PathProgramCache]: Analyzing trace with hash -404858835, now seen corresponding path program 1 times [2021-03-26 04:44:51,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:51,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885778183] [2021-03-26 04:44:51,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:51,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,224 INFO L142 QuantifierPusher]: treesize reduction 28, result has 26.3 percent of original size [2021-03-26 04:44:51,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:51,232 INFO L142 QuantifierPusher]: treesize reduction 177, result has 33.2 percent of original size [2021-03-26 04:44:51,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-03-26 04:44:51,278 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 04:44:51,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:51,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:51,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:51,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885778183] [2021-03-26 04:44:51,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062692537] [2021-03-26 04:44:51,313 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 [2021-03-26 04:44:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:51,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-26 04:44:51,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:51,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:51,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:51,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:51,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 04:44:51,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,361 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:51,362 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,362 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:51,362 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:51,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-26 04:44:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,381 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:51,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:51,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-26 04:44:51,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,382 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:51,383 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:51,383 INFO L142 QuantifierPusher]: treesize reduction 23, result has 47.7 percent of original size [2021-03-26 04:44:51,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:51,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 04:44:51,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 89.0 percent of original size [2021-03-26 04:44:51,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-26 04:44:51,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-26 04:44:51,412 INFO L142 QuantifierPusher]: treesize reduction 109, result has 45.5 percent of original size [2021-03-26 04:44:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:51,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-26 04:44:51,507 INFO L142 QuantifierPusher]: treesize reduction 9, result has 90.3 percent of original size [2021-03-26 04:44:51,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:51,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,508 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:51,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-26 04:44:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-26 04:44:51,510 INFO L142 QuantifierPusher]: treesize reduction 55, result has 26.7 percent of original size [2021-03-26 04:44:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:51,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:51,512 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:51,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:51,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:51,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-03-26 04:44:51,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502247338] [2021-03-26 04:44:51,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 04:44:51,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 04:44:51,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-03-26 04:44:51,519 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 107 [2021-03-26 04:44:51,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 267 transitions, 4950 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) [2021-03-26 04:44:51,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:51,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 107 [2021-03-26 04:44:51,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:51,903 INFO L129 PetriNetUnfolder]: 327/798 cut-off events. [2021-03-26 04:44:51,903 INFO L130 PetriNetUnfolder]: For 102108/102118 co-relation queries the response was YES. [2021-03-26 04:44:51,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12453 conditions, 798 events. 327/798 cut-off events. For 102108/102118 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 5343 event pairs, 25 based on Foata normal form. 7/802 useless extension candidates. Maximal degree in co-relation 12287. Up to 616 conditions per place. [2021-03-26 04:44:51,912 INFO L132 encePairwiseOnDemand]: 93/107 looper letters, 236 selfloop transitions, 30 changer transitions 0/271 dead transitions. [2021-03-26 04:44:51,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 271 transitions, 5745 flow [2021-03-26 04:44:51,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 04:44:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 04:44:51,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 170 transitions. [2021-03-26 04:44:51,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1985981308411215 [2021-03-26 04:44:51,913 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 170 transitions. [2021-03-26 04:44:51,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 170 transitions. [2021-03-26 04:44:51,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:51,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 170 transitions. [2021-03-26 04:44:51,915 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) [2021-03-26 04:44:51,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:51,916 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 107.0) internal successors, (963), 9 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:51,916 INFO L185 Difference]: Start difference. First operand has 330 places, 267 transitions, 4950 flow. Second operand 8 states and 170 transitions. [2021-03-26 04:44:51,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 271 transitions, 5745 flow [2021-03-26 04:44:52,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 271 transitions, 5520 flow, removed 82 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:52,402 INFO L241 Difference]: Finished difference. Result has 331 places, 268 transitions, 4822 flow [2021-03-26 04:44:52,403 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4729, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4822, PETRI_PLACES=331, PETRI_TRANSITIONS=268} [2021-03-26 04:44:52,403 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 315 predicate places. [2021-03-26 04:44:52,403 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:52,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 268 transitions, 4822 flow [2021-03-26 04:44:52,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 268 transitions, 4822 flow [2021-03-26 04:44:52,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 268 transitions, 4822 flow [2021-03-26 04:44:52,512 INFO L129 PetriNetUnfolder]: 323/798 cut-off events. [2021-03-26 04:44:52,512 INFO L130 PetriNetUnfolder]: For 95662/95695 co-relation queries the response was YES. [2021-03-26 04:44:52,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11517 conditions, 798 events. 323/798 cut-off events. For 95662/95695 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 5512 event pairs, 28 based on Foata normal form. 6/797 useless extension candidates. Maximal degree in co-relation 11354. Up to 491 conditions per place. [2021-03-26 04:44:52,522 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 04:44:52,531 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:52,532 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:52,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 129 [2021-03-26 04:44:52,532 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 268 transitions, 4822 flow [2021-03-26 04:44:52,532 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) [2021-03-26 04:44:52,532 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:52,532 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:52,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable390 [2021-03-26 04:44:52,748 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:52,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1076841661, now seen corresponding path program 1 times [2021-03-26 04:44:52,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:52,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178035587] [2021-03-26 04:44:52,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:52,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:52,776 INFO L142 QuantifierPusher]: treesize reduction 4193, result has 4.0 percent of original size [2021-03-26 04:44:52,777 INFO L147 QuantifierPusher]: treesize reduction 51, result has 71.0 percent of original size 125 [2021-03-26 04:44:52,828 INFO L142 QuantifierPusher]: treesize reduction 80, result has 21.6 percent of original size [2021-03-26 04:44:52,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-26 04:44:52,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:52,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:52,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178035587] [2021-03-26 04:44:52,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713618347] [2021-03-26 04:44:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-26 04:44:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:52,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjunts are in the unsatisfiable core [2021-03-26 04:44:52,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:52,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:52,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,891 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:52,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,892 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:52,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:52,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:52,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,894 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:44:52,894 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:44:52,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:52,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-26 04:44:52,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,895 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:52,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-26 04:44:52,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 04:44:52,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,897 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-03-26 04:44:52,897 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,897 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:52,898 INFO L142 QuantifierPusher]: treesize reduction 26, result has 44.7 percent of original size [2021-03-26 04:44:52,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 04:44:52,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:52,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:52,917 INFO L142 QuantifierPusher]: treesize reduction 3, result has 99.0 percent of original size [2021-03-26 04:44:52,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:52,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-26 04:44:52,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-03-26 04:44:52,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:52,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-03-26 04:44:52,937 INFO L142 QuantifierPusher]: treesize reduction 21766, result has 0.8 percent of original size [2021-03-26 04:44:52,937 INFO L147 QuantifierPusher]: treesize reduction 60, result has 63.6 percent of original size 105 [2021-03-26 04:44:52,944 INFO L142 QuantifierPusher]: treesize reduction 60, result has 63.6 percent of original size [2021-03-26 04:44:52,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-26 04:44:53,024 INFO L142 QuantifierPusher]: treesize reduction 9, result has 91.6 percent of original size [2021-03-26 04:44:53,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:44:53,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:53,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-26 04:44:53,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-26 04:44:53,027 INFO L142 QuantifierPusher]: treesize reduction 55, result has 38.2 percent of original size [2021-03-26 04:44:53,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 04:44:53,031 INFO L142 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size [2021-03-26 04:44:53,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:53,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 04:44:53,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-03-26 04:44:53,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728632124] [2021-03-26 04:44:53,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 04:44:53,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 04:44:53,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 04:44:53,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-26 04:44:53,036 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 107 [2021-03-26 04:44:53,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 268 transitions, 4822 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) [2021-03-26 04:44:53,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 04:44:53,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 107 [2021-03-26 04:44:53,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 04:44:53,349 INFO L129 PetriNetUnfolder]: 328/796 cut-off events. [2021-03-26 04:44:53,349 INFO L130 PetriNetUnfolder]: For 99009/99019 co-relation queries the response was YES. [2021-03-26 04:44:53,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12406 conditions, 796 events. 328/796 cut-off events. For 99009/99019 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5296 event pairs, 28 based on Foata normal form. 3/796 useless extension candidates. Maximal degree in co-relation 12239. Up to 642 conditions per place. [2021-03-26 04:44:53,358 INFO L132 encePairwiseOnDemand]: 95/107 looper letters, 247 selfloop transitions, 18 changer transitions 0/270 dead transitions. [2021-03-26 04:44:53,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 270 transitions, 5740 flow [2021-03-26 04:44:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 04:44:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 04:44:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 154 transitions. [2021-03-26 04:44:53,359 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.205607476635514 [2021-03-26 04:44:53,359 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 154 transitions. [2021-03-26 04:44:53,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 154 transitions. [2021-03-26 04:44:53,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 04:44:53,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 154 transitions. [2021-03-26 04:44:53,360 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) [2021-03-26 04:44:53,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:53,360 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 04:44:53,360 INFO L185 Difference]: Start difference. First operand has 331 places, 268 transitions, 4822 flow. Second operand 7 states and 154 transitions. [2021-03-26 04:44:53,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 270 transitions, 5740 flow [2021-03-26 04:44:53,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 270 transitions, 5652 flow, removed 15 selfloop flow, removed 7 redundant places. [2021-03-26 04:44:53,692 INFO L241 Difference]: Finished difference. Result has 330 places, 266 transitions, 4809 flow [2021-03-26 04:44:53,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4728, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4809, PETRI_PLACES=330, PETRI_TRANSITIONS=266} [2021-03-26 04:44:53,692 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 314 predicate places. [2021-03-26 04:44:53,692 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 04:44:53,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 266 transitions, 4809 flow [2021-03-26 04:44:53,693 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 266 transitions, 4809 flow [2021-03-26 04:44:53,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 266 transitions, 4809 flow [2021-03-26 04:44:53,803 INFO L129 PetriNetUnfolder]: 323/799 cut-off events. [2021-03-26 04:44:53,803 INFO L130 PetriNetUnfolder]: For 94516/94546 co-relation queries the response was YES. [2021-03-26 04:44:53,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11616 conditions, 799 events. 323/799 cut-off events. For 94516/94546 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 5438 event pairs, 32 based on Foata normal form. 6/800 useless extension candidates. Maximal degree in co-relation 11453. Up to 496 conditions per place. [2021-03-26 04:44:53,814 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 04:44:53,823 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 04:44:53,823 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 04:44:53,823 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 131 [2021-03-26 04:44:53,823 INFO L480 AbstractCegarLoop]: Abstraction has has 330 places, 266 transitions, 4809 flow [2021-03-26 04:44:53,824 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) [2021-03-26 04:44:53,824 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 04:44:53,824 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 04:44:54,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 04:44:54,028 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 04:44:54,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 04:44:54,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1943836009, now seen corresponding path program 1 times [2021-03-26 04:44:54,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 04:44:54,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936342032] [2021-03-26 04:44:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 04:44:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:54,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:54,051 INFO L142 QuantifierPusher]: treesize reduction 200, result has 21.3 percent of original size [2021-03-26 04:44:54,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-26 04:44:54,079 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.3 percent of original size [2021-03-26 04:44:54,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-26 04:44:54,100 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-26 04:44:54,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 04:44:54,122 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-03-26 04:44:54,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 04:44:54,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 04:44:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 04:44:54,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936342032] [2021-03-26 04:44:54,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126854085] [2021-03-26 04:44:54,151 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 [2021-03-26 04:44:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 04:44:54,195 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-03-26 04:44:54,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 04:44:54,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 04:44:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:54,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:54,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:54,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:54,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 04:44:54,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,202 INFO L147 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size 6 [2021-03-26 04:44:54,202 INFO L142 QuantifierPusher]: treesize reduction 2, result has 75.0 percent of original size [2021-03-26 04:44:54,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-03-26 04:44:54,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-26 04:44:54,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-26 04:44:54,205 INFO L142 QuantifierPusher]: treesize reduction 25, result has 77.3 percent of original size [2021-03-26 04:44:54,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:44:54,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-26 04:44:54,249 INFO L142 QuantifierPusher]: treesize reduction 4, result has 99.8 percent of original size [2021-03-26 04:44:54,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:54,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 288 [2021-03-26 04:44:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1549 [2021-03-26 04:44:54,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 04:44:54,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 04:44:54,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3444 [2021-03-26 04:44:54,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3641