/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 19:19:06,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 19:19:06,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 19:19:06,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 19:19:06,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 19:19:06,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 19:19:06,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 19:19:06,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 19:19:06,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 19:19:06,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 19:19:06,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 19:19:06,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 19:19:06,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 19:19:06,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 19:19:06,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 19:19:06,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 19:19:06,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 19:19:06,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 19:19:06,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 19:19:06,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 19:19:06,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 19:19:06,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 19:19:06,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 19:19:06,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 19:19:06,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 19:19:06,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 19:19:06,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 19:19:06,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 19:19:06,200 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 19:19:06,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 19:19:06,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 19:19:06,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 19:19:06,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 19:19:06,228 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 19:19:06,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 19:19:06,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 19:19:06,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 19:19:06,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 19:19:06,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 19:19:06,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 19:19:06,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 19:19:06,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 19:19:06,229 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 19:19:06,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 19:19:06,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 19:19:06,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 19:19:06,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 19:19:06,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 19:19:06,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 19:19:06,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 19:19:06,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 19:19:06,509 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 19:19:06,509 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 19:19:06,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl [2021-06-11 19:19:06,510 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl' [2021-06-11 19:19:06,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 19:19:06,539 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 19:19:06,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 19:19:06,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 19:19:06,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 19:19:06,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 19:19:06,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 19:19:06,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 19:19:06,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 19:19:06,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/1) ... [2021-06-11 19:19:06,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 19:19:06,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 19:19:06,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 19:19:06,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 19:19:06,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (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 [2021-06-11 19:19:06,625 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 19:19:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 19:19:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 19:19:06,628 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 19:19:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 19:19:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 19:19:06,628 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 19:19:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 19:19:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 19:19:06,629 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 19:19:06,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 19:19:06,762 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 19:19:06,764 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:19:06 BoogieIcfgContainer [2021-06-11 19:19:06,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 19:19:06,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 19:19:06,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 19:19:06,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 19:19:06,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 07:19:06" (1/2) ... [2021-06-11 19:19:06,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75330a95 and model type mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 07:19:06, skipping insertion in model container [2021-06-11 19:19:06,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 07:19:06" (2/2) ... [2021-06-11 19:19:06,769 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.bpl [2021-06-11 19:19:06,772 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 19:19:06,775 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 19:19:06,775 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 19:19:06,797 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-11 19:19:06,809 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 19:19:06,822 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 19:19:06,822 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 19:19:06,823 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 19:19:06,823 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 19:19:06,823 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 19:19:06,823 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 19:19:06,823 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 19:19:06,823 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 19:19:06,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 54 flow [2021-06-11 19:19:06,852 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2021-06-11 19:19:06,852 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:19:06,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 2/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 11. Up to 2 conditions per place. [2021-06-11 19:19:06,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 54 flow [2021-06-11 19:19:06,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 15 transitions, 42 flow [2021-06-11 19:19:06,857 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:06,867 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 15 transitions, 42 flow [2021-06-11 19:19:06,869 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 15 transitions, 42 flow [2021-06-11 19:19:06,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 15 transitions, 42 flow [2021-06-11 19:19:06,874 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2021-06-11 19:19:06,874 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:19:06,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 2/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 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. [2021-06-11 19:19:06,876 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 19:19:06,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:06,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:19:07,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 19:19:07,068 INFO L163 LiptonReduction]: Checked pairs total: 20 [2021-06-11 19:19:07,068 INFO L165 LiptonReduction]: Total number of compositions: 5 [2021-06-11 19:19:07,080 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-06-11 19:19:07,087 INFO L129 PetriNetUnfolder]: 2/9 cut-off events. [2021-06-11 19:19:07,087 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-11 19:19:07,087 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:07,088 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:07,088 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1133339149, now seen corresponding path program 1 times [2021-06-11 19:19:07,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:07,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766126582] [2021-06-11 19:19:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:07,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 19:19:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:07,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766126582] [2021-06-11 19:19:07,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 19:19:07,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 19:19:07,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811806796] [2021-06-11 19:19:07,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 19:19:07,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:07,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 19:19:07,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 19:19:07,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 24 [2021-06-11 19:19:07,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 10 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:07,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 24 [2021-06-11 19:19:07,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:07,237 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-06-11 19:19:07,238 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-06-11 19:19:07,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 19 events. 5/19 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 20. Up to 8 conditions per place. [2021-06-11 19:19:07,240 INFO L132 encePairwiseOnDemand]: 20/24 looper letters, 3 selfloop transitions, 3 changer transitions 0/12 dead transitions. [2021-06-11 19:19:07,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 12 transitions, 48 flow [2021-06-11 19:19:07,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 19:19:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 19:19:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2021-06-11 19:19:07,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7638888888888888 [2021-06-11 19:19:07,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 55 transitions. [2021-06-11 19:19:07,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 55 transitions. [2021-06-11 19:19:07,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:07,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 55 transitions. [2021-06-11 19:19:07,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2021-06-11 19:19:07,257 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2021-06-11 19:19:07,258 INFO L185 Difference]: Start difference. First operand has 15 places, 10 transitions, 32 flow. Second operand 3 states and 55 transitions. [2021-06-11 19:19:07,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 12 transitions, 48 flow [2021-06-11 19:19:07,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 12 transitions, 40 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:07,262 INFO L241 Difference]: Finished difference. Result has 14 places, 12 transitions, 43 flow [2021-06-11 19:19:07,263 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=43, PETRI_PLACES=14, PETRI_TRANSITIONS=12} [2021-06-11 19:19:07,263 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, -1 predicate places. [2021-06-11 19:19:07,264 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:07,264 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 12 transitions, 43 flow [2021-06-11 19:19:07,265 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 12 transitions, 43 flow [2021-06-11 19:19:07,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 12 transitions, 43 flow [2021-06-11 19:19:07,273 INFO L129 PetriNetUnfolder]: 5/19 cut-off events. [2021-06-11 19:19:07,273 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 19:19:07,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 19 events. 5/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 18. Up to 8 conditions per place. [2021-06-11 19:19:07,274 INFO L151 LiptonReduction]: Number of co-enabled transitions 22 [2021-06-11 19:19:07,275 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:07,275 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:07,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 19:19:07,277 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 12 transitions, 43 flow [2021-06-11 19:19:07,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,277 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:07,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:07,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 19:19:07,278 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash -687885939, now seen corresponding path program 1 times [2021-06-11 19:19:07,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:07,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974050172] [2021-06-11 19:19:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:07,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,361 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-06-11 19:19:07,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:07,415 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:07,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:07,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974050172] [2021-06-11 19:19:07,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128646213] [2021-06-11 19:19:07,439 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 [2021-06-11 19:19:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:07,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 19:19:07,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:07,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,501 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:07,501 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:07,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,521 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:07,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,526 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:07,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:07,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:07,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:07,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:07,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-06-11 19:19:07,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541303308] [2021-06-11 19:19:07,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 19:19:07,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:07,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 19:19:07,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-11 19:19:07,544 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-06-11 19:19:07,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 12 transitions, 43 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:07,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-06-11 19:19:07,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:07,659 INFO L129 PetriNetUnfolder]: 9/28 cut-off events. [2021-06-11 19:19:07,659 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 19:19:07,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 28 events. 9/28 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 47. Up to 13 conditions per place. [2021-06-11 19:19:07,660 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 4 selfloop transitions, 5 changer transitions 4/18 dead transitions. [2021-06-11 19:19:07,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 18 transitions, 90 flow [2021-06-11 19:19:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 19:19:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 19:19:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-06-11 19:19:07,662 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.65 [2021-06-11 19:19:07,662 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-06-11 19:19:07,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-06-11 19:19:07,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:07,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-06-11 19:19:07,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 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) [2021-06-11 19:19:07,668 INFO L81 ComplementDD]: Finished complementDD. Result has 6 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) [2021-06-11 19:19:07,668 INFO L185 Difference]: Start difference. First operand has 14 places, 12 transitions, 43 flow. Second operand 5 states and 78 transitions. [2021-06-11 19:19:07,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 18 transitions, 90 flow [2021-06-11 19:19:07,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 18 transitions, 86 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 19:19:07,671 INFO L241 Difference]: Finished difference. Result has 20 places, 14 transitions, 74 flow [2021-06-11 19:19:07,671 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2021-06-11 19:19:07,671 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 5 predicate places. [2021-06-11 19:19:07,672 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:07,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 14 transitions, 74 flow [2021-06-11 19:19:07,672 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 14 transitions, 74 flow [2021-06-11 19:19:07,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 19 places, 14 transitions, 74 flow [2021-06-11 19:19:07,683 INFO L129 PetriNetUnfolder]: 7/22 cut-off events. [2021-06-11 19:19:07,683 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-06-11 19:19:07,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 22 events. 7/22 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 51. Up to 11 conditions per place. [2021-06-11 19:19:07,685 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-11 19:19:07,686 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:07,686 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:07,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:07,688 INFO L480 AbstractCegarLoop]: Abstraction has has 19 places, 14 transitions, 74 flow [2021-06-11 19:19:07,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:07,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:07,688 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:07,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-06-11 19:19:07,893 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:07,893 INFO L82 PathProgramCache]: Analyzing trace with hash -803209783, now seen corresponding path program 1 times [2021-06-11 19:19:07,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:07,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453521294] [2021-06-11 19:19:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:07,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:07,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:07,947 INFO L142 QuantifierPusher]: treesize reduction 13, result has 69.8 percent of original size [2021-06-11 19:19:07,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:07,975 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:07,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:07,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453521294] [2021-06-11 19:19:07,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877202625] [2021-06-11 19:19:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-11 19:19:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:08,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-11 19:19:08,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:08,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:08,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,064 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-06-11 19:19:08,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:08,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,066 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:08,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:08,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:08,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:08,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2021-06-11 19:19:08,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321771134] [2021-06-11 19:19:08,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 19:19:08,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:08,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 19:19:08,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-11 19:19:08,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-06-11 19:19:08,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:08,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:08,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-06-11 19:19:08,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:08,185 INFO L129 PetriNetUnfolder]: 15/36 cut-off events. [2021-06-11 19:19:08,185 INFO L130 PetriNetUnfolder]: For 35/36 co-relation queries the response was YES. [2021-06-11 19:19:08,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 36 events. 15/36 cut-off events. For 35/36 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 78 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 110. Up to 19 conditions per place. [2021-06-11 19:19:08,186 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 6 selfloop transitions, 5 changer transitions 4/20 dead transitions. [2021-06-11 19:19:08,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 20 transitions, 133 flow [2021-06-11 19:19:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 19:19:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 19:19:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2021-06-11 19:19:08,191 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.65 [2021-06-11 19:19:08,191 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 78 transitions. [2021-06-11 19:19:08,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 78 transitions. [2021-06-11 19:19:08,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:08,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 78 transitions. [2021-06-11 19:19:08,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:08,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 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) [2021-06-11 19:19:08,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 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) [2021-06-11 19:19:08,195 INFO L185 Difference]: Start difference. First operand has 19 places, 14 transitions, 74 flow. Second operand 5 states and 78 transitions. [2021-06-11 19:19:08,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 20 transitions, 133 flow [2021-06-11 19:19:08,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 116 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-06-11 19:19:08,196 INFO L241 Difference]: Finished difference. Result has 23 places, 16 transitions, 97 flow [2021-06-11 19:19:08,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=23, PETRI_TRANSITIONS=16} [2021-06-11 19:19:08,196 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 8 predicate places. [2021-06-11 19:19:08,196 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:08,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 16 transitions, 97 flow [2021-06-11 19:19:08,197 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 16 transitions, 97 flow [2021-06-11 19:19:08,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 16 transitions, 97 flow [2021-06-11 19:19:08,205 INFO L129 PetriNetUnfolder]: 12/28 cut-off events. [2021-06-11 19:19:08,205 INFO L130 PetriNetUnfolder]: For 28/31 co-relation queries the response was YES. [2021-06-11 19:19:08,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 28 events. 12/28 cut-off events. For 28/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 87. Up to 16 conditions per place. [2021-06-11 19:19:08,207 INFO L151 LiptonReduction]: Number of co-enabled transitions 18 [2021-06-11 19:19:08,209 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:08,209 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:08,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:08,211 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 97 flow [2021-06-11 19:19:08,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:08,211 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:08,211 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:08,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:08,421 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:08,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:08,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1788899921, now seen corresponding path program 1 times [2021-06-11 19:19:08,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:08,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099141950] [2021-06-11 19:19:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:08,451 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:08,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:08,464 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-06-11 19:19:08,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:08,478 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,489 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:08,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:08,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099141950] [2021-06-11 19:19:08,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879934263] [2021-06-11 19:19:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:08,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:08,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:08,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:08,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:08,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,554 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:08,554 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 19:19:08,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:08,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:08,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:08,575 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:08,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:08,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,581 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:08,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:08,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:08,608 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:08,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:08,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,622 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:08,623 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:08,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:08,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:08,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:08,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:08,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:08,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:08,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:08,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 19:19:08,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270786969] [2021-06-11 19:19:08,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 19:19:08,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:08,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 19:19:08,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-11 19:19:08,659 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:08,659 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 97 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) [2021-06-11 19:19:08,659 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:08,659 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:08,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:08,783 INFO L129 PetriNetUnfolder]: 18/50 cut-off events. [2021-06-11 19:19:08,783 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-06-11 19:19:08,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 50 events. 18/50 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 128 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 174. Up to 27 conditions per place. [2021-06-11 19:19:08,784 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 11 selfloop transitions, 9 changer transitions 1/25 dead transitions. [2021-06-11 19:19:08,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 25 transitions, 195 flow [2021-06-11 19:19:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:08,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 90 transitions. [2021-06-11 19:19:08,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2021-06-11 19:19:08,787 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 90 transitions. [2021-06-11 19:19:08,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 90 transitions. [2021-06-11 19:19:08,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:08,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 90 transitions. [2021-06-11 19:19:08,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 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) [2021-06-11 19:19:08,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:08,789 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:08,789 INFO L185 Difference]: Start difference. First operand has 22 places, 16 transitions, 97 flow. Second operand 7 states and 90 transitions. [2021-06-11 19:19:08,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 25 transitions, 195 flow [2021-06-11 19:19:08,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 176 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-06-11 19:19:08,791 INFO L241 Difference]: Finished difference. Result has 28 places, 20 transitions, 146 flow [2021-06-11 19:19:08,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=146, PETRI_PLACES=28, PETRI_TRANSITIONS=20} [2021-06-11 19:19:08,791 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 13 predicate places. [2021-06-11 19:19:08,792 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:08,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 20 transitions, 146 flow [2021-06-11 19:19:08,792 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 20 transitions, 146 flow [2021-06-11 19:19:08,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 20 transitions, 146 flow [2021-06-11 19:19:08,796 INFO L129 PetriNetUnfolder]: 16/46 cut-off events. [2021-06-11 19:19:08,797 INFO L130 PetriNetUnfolder]: For 86/87 co-relation queries the response was YES. [2021-06-11 19:19:08,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 46 events. 16/46 cut-off events. For 86/87 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 116 event pairs, 1 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 155. Up to 24 conditions per place. [2021-06-11 19:19:08,797 INFO L151 LiptonReduction]: Number of co-enabled transitions 20 [2021-06-11 19:19:08,799 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:08,799 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:08,799 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 19:19:08,799 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 146 flow [2021-06-11 19:19:08,799 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) [2021-06-11 19:19:08,799 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:08,799 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:09,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:09,019 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:09,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1843803025, now seen corresponding path program 2 times [2021-06-11 19:19:09,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:09,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500762148] [2021-06-11 19:19:09,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:09,050 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:09,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:09,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:09,072 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:09,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,083 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:09,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:09,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500762148] [2021-06-11 19:19:09,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052897942] [2021-06-11 19:19:09,100 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 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 [2021-06-11 19:19:09,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:09,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:09,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:09,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:09,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,151 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size 23 [2021-06-11 19:19:09,151 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-06-11 19:19:09,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,165 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:09,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:09,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,167 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:09,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:09,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:09,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:09,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,187 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:09,188 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:09,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:09,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:09,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:09,205 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:09,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:09,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,221 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:09,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:09,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:09,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,226 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:09,227 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:09,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:09,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:09,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:09,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 19:19:09,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045350858] [2021-06-11 19:19:09,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 19:19:09,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 19:19:09,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-11 19:19:09,256 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:09,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 146 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) [2021-06-11 19:19:09,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:09,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:09,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:09,337 INFO L129 PetriNetUnfolder]: 18/47 cut-off events. [2021-06-11 19:19:09,338 INFO L130 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2021-06-11 19:19:09,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 47 events. 18/47 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 111 event pairs, 1 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 197. Up to 32 conditions per place. [2021-06-11 19:19:09,338 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 11 selfloop transitions, 8 changer transitions 1/24 dead transitions. [2021-06-11 19:19:09,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 220 flow [2021-06-11 19:19:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:09,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2021-06-11 19:19:09,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2021-06-11 19:19:09,340 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 85 transitions. [2021-06-11 19:19:09,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 85 transitions. [2021-06-11 19:19:09,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:09,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 85 transitions. [2021-06-11 19:19:09,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,341 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,341 INFO L185 Difference]: Start difference. First operand has 27 places, 20 transitions, 146 flow. Second operand 7 states and 85 transitions. [2021-06-11 19:19:09,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 220 flow [2021-06-11 19:19:09,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 189 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-06-11 19:19:09,343 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 171 flow [2021-06-11 19:19:09,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=171, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2021-06-11 19:19:09,343 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 18 predicate places. [2021-06-11 19:19:09,343 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:09,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 171 flow [2021-06-11 19:19:09,344 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 171 flow [2021-06-11 19:19:09,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 171 flow [2021-06-11 19:19:09,347 INFO L129 PetriNetUnfolder]: 16/41 cut-off events. [2021-06-11 19:19:09,347 INFO L130 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2021-06-11 19:19:09,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 41 events. 16/41 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 80 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 147. Up to 22 conditions per place. [2021-06-11 19:19:09,347 INFO L151 LiptonReduction]: Number of co-enabled transitions 22 [2021-06-11 19:19:09,349 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:09,349 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:09,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 19:19:09,349 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 171 flow [2021-06-11 19:19:09,349 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) [2021-06-11 19:19:09,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:09,349 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:09,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:09,561 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash 95913399, now seen corresponding path program 3 times [2021-06-11 19:19:09,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:09,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151117506] [2021-06-11 19:19:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:09,578 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:09,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:09,589 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-06-11 19:19:09,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:09,599 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:09,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,608 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:09,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:09,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151117506] [2021-06-11 19:19:09,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489886266] [2021-06-11 19:19:09,615 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 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 [2021-06-11 19:19:09,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:09,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:09,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:09,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:09,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:09,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:09,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,675 INFO L147 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size 32 [2021-06-11 19:19:09,675 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size [2021-06-11 19:19:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:09,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:09,689 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:09,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:09,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,694 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:09,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:09,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:09,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:09,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:09,709 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:09,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:09,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:09,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:09,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:09,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,726 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:09,728 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:09,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:09,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:09,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:09,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:09,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 19:19:09,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757068063] [2021-06-11 19:19:09,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 19:19:09,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:09,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 19:19:09,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-06-11 19:19:09,754 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:09,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 171 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) [2021-06-11 19:19:09,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:09,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:09,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:09,871 INFO L129 PetriNetUnfolder]: 18/44 cut-off events. [2021-06-11 19:19:09,872 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2021-06-11 19:19:09,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 44 events. 18/44 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 90 event pairs, 1 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 196. Up to 27 conditions per place. [2021-06-11 19:19:09,872 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 9 selfloop transitions, 12 changer transitions 1/26 dead transitions. [2021-06-11 19:19:09,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 238 flow [2021-06-11 19:19:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-06-11 19:19:09,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2021-06-11 19:19:09,874 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-06-11 19:19:09,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-06-11 19:19:09,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:09,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-06-11 19:19:09,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 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) [2021-06-11 19:19:09,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,875 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,875 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 171 flow. Second operand 7 states and 88 transitions. [2021-06-11 19:19:09,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 238 flow [2021-06-11 19:19:09,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 212 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:09,877 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 201 flow [2021-06-11 19:19:09,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=201, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-06-11 19:19:09,877 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 22 predicate places. [2021-06-11 19:19:09,877 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:09,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 201 flow [2021-06-11 19:19:09,877 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 201 flow [2021-06-11 19:19:09,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 25 transitions, 201 flow [2021-06-11 19:19:09,880 INFO L129 PetriNetUnfolder]: 16/37 cut-off events. [2021-06-11 19:19:09,880 INFO L130 PetriNetUnfolder]: For 98/100 co-relation queries the response was YES. [2021-06-11 19:19:09,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 37 events. 16/37 cut-off events. For 98/100 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 75 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 152. Up to 21 conditions per place. [2021-06-11 19:19:09,881 INFO L151 LiptonReduction]: Number of co-enabled transitions 22 [2021-06-11 19:19:09,882 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:09,882 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:09,882 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 19:19:09,882 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 201 flow [2021-06-11 19:19:09,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:09,883 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:09,883 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:10,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-11 19:19:10,097 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:10,097 INFO L82 PathProgramCache]: Analyzing trace with hash -675203597, now seen corresponding path program 2 times [2021-06-11 19:19:10,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:10,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681869867] [2021-06-11 19:19:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:10,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,135 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:10,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:10,160 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:10,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:10,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681869867] [2021-06-11 19:19:10,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068933719] [2021-06-11 19:19:10,175 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 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 [2021-06-11 19:19:10,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:10,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:10,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 19:19:10,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:10,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,221 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:10,221 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:10,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,235 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:10,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:10,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:10,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:10,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:10,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:10,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:10,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:10,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-06-11 19:19:10,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599560445] [2021-06-11 19:19:10,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 19:19:10,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:10,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 19:19:10,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-11 19:19:10,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-06-11 19:19:10,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:10,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-06-11 19:19:10,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:10,377 INFO L129 PetriNetUnfolder]: 19/45 cut-off events. [2021-06-11 19:19:10,378 INFO L130 PetriNetUnfolder]: For 151/155 co-relation queries the response was YES. [2021-06-11 19:19:10,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 45 events. 19/45 cut-off events. For 151/155 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 100 event pairs, 0 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 215. Up to 27 conditions per place. [2021-06-11 19:19:10,378 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 12 selfloop transitions, 8 changer transitions 2/29 dead transitions. [2021-06-11 19:19:10,378 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 287 flow [2021-06-11 19:19:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 19:19:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 19:19:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2021-06-11 19:19:10,379 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2021-06-11 19:19:10,379 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:10,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 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) [2021-06-11 19:19:10,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,380 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,380 INFO L185 Difference]: Start difference. First operand has 36 places, 25 transitions, 201 flow. Second operand 6 states and 92 transitions. [2021-06-11 19:19:10,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 287 flow [2021-06-11 19:19:10,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 29 transitions, 246 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:10,382 INFO L241 Difference]: Finished difference. Result has 39 places, 27 transitions, 211 flow [2021-06-11 19:19:10,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2021-06-11 19:19:10,382 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 24 predicate places. [2021-06-11 19:19:10,382 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:10,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 27 transitions, 211 flow [2021-06-11 19:19:10,382 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 27 transitions, 211 flow [2021-06-11 19:19:10,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 27 transitions, 211 flow [2021-06-11 19:19:10,385 INFO L129 PetriNetUnfolder]: 18/42 cut-off events. [2021-06-11 19:19:10,385 INFO L130 PetriNetUnfolder]: For 112/115 co-relation queries the response was YES. [2021-06-11 19:19:10,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 42 events. 18/42 cut-off events. For 112/115 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 102 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 172. Up to 20 conditions per place. [2021-06-11 19:19:10,386 INFO L151 LiptonReduction]: Number of co-enabled transitions 26 [2021-06-11 19:19:10,387 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:10,387 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:10,387 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 19:19:10,388 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 211 flow [2021-06-11 19:19:10,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:10,388 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:10,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:10,603 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash 841673211, now seen corresponding path program 2 times [2021-06-11 19:19:10,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:10,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857585569] [2021-06-11 19:19:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:10,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,633 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:10,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:10,658 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:10,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:10,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:10,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857585569] [2021-06-11 19:19:10,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26820941] [2021-06-11 19:19:10,676 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:10,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:10,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:10,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-11 19:19:10,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:10,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:10,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:10,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:10,755 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:10,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:10,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:10,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:10,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:10,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:10,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:10,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:10,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:10,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:10,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-06-11 19:19:10,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060685547] [2021-06-11 19:19:10,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 19:19:10,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:10,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 19:19:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-06-11 19:19:10,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 24 [2021-06-11 19:19:10,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 211 flow. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:10,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 24 [2021-06-11 19:19:10,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:10,910 INFO L129 PetriNetUnfolder]: 21/52 cut-off events. [2021-06-11 19:19:10,911 INFO L130 PetriNetUnfolder]: For 168/170 co-relation queries the response was YES. [2021-06-11 19:19:10,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 52 events. 21/52 cut-off events. For 168/170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 130 event pairs, 1 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 249. Up to 32 conditions per place. [2021-06-11 19:19:10,911 INFO L132 encePairwiseOnDemand]: 19/24 looper letters, 16 selfloop transitions, 7 changer transitions 2/31 dead transitions. [2021-06-11 19:19:10,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 307 flow [2021-06-11 19:19:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 19:19:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 19:19:10,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2021-06-11 19:19:10,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2021-06-11 19:19:10,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:10,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 92 transitions. [2021-06-11 19:19:10,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 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) [2021-06-11 19:19:10,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,914 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 211 flow. Second operand 6 states and 92 transitions. [2021-06-11 19:19:10,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 307 flow [2021-06-11 19:19:10,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 282 flow, removed 6 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:10,915 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 235 flow [2021-06-11 19:19:10,915 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-06-11 19:19:10,915 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 26 predicate places. [2021-06-11 19:19:10,915 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:10,916 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 235 flow [2021-06-11 19:19:10,916 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 235 flow [2021-06-11 19:19:10,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 29 transitions, 235 flow [2021-06-11 19:19:10,919 INFO L129 PetriNetUnfolder]: 20/46 cut-off events. [2021-06-11 19:19:10,919 INFO L130 PetriNetUnfolder]: For 156/160 co-relation queries the response was YES. [2021-06-11 19:19:10,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 46 events. 20/46 cut-off events. For 156/160 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 116 event pairs, 1 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 201. Up to 21 conditions per place. [2021-06-11 19:19:10,919 INFO L151 LiptonReduction]: Number of co-enabled transitions 26 [2021-06-11 19:19:10,921 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:10,921 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:10,921 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 19:19:10,921 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 235 flow [2021-06-11 19:19:10,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:10,921 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:10,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:11,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:11,136 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:11,137 INFO L82 PathProgramCache]: Analyzing trace with hash 872265685, now seen corresponding path program 4 times [2021-06-11 19:19:11,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:11,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549193495] [2021-06-11 19:19:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:11,161 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 19:19:11,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:11,164 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:11,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:11,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:11,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:11,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:11,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,192 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:11,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:11,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549193495] [2021-06-11 19:19:11,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844558274] [2021-06-11 19:19:11,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:11,218 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:11,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:11,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:11,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:11,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,237 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:11,238 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:11,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,249 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:11,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:11,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,251 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:11,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:11,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:11,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,265 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:11,267 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:11,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:11,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:11,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:11,282 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:11,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:11,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:11,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:11,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:11,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,297 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:11,297 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:11,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:11,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:11,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:11,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 19:19:11,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473145637] [2021-06-11 19:19:11,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 19:19:11,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:11,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 19:19:11,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-06-11 19:19:11,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:11,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 235 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) [2021-06-11 19:19:11,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:11,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:11,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:11,404 INFO L129 PetriNetUnfolder]: 22/53 cut-off events. [2021-06-11 19:19:11,404 INFO L130 PetriNetUnfolder]: For 218/218 co-relation queries the response was YES. [2021-06-11 19:19:11,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 53 events. 22/53 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 126 event pairs, 1 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 274. Up to 39 conditions per place. [2021-06-11 19:19:11,405 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 20 selfloop transitions, 8 changer transitions 1/33 dead transitions. [2021-06-11 19:19:11,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 335 flow [2021-06-11 19:19:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2021-06-11 19:19:11,406 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2021-06-11 19:19:11,406 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 85 transitions. [2021-06-11 19:19:11,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 85 transitions. [2021-06-11 19:19:11,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:11,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 85 transitions. [2021-06-11 19:19:11,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,407 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,407 INFO L185 Difference]: Start difference. First operand has 40 places, 29 transitions, 235 flow. Second operand 7 states and 85 transitions. [2021-06-11 19:19:11,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 335 flow [2021-06-11 19:19:11,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 306 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:11,408 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 266 flow [2021-06-11 19:19:11,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=266, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-06-11 19:19:11,409 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 30 predicate places. [2021-06-11 19:19:11,409 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:11,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 266 flow [2021-06-11 19:19:11,409 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 266 flow [2021-06-11 19:19:11,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 266 flow [2021-06-11 19:19:11,412 INFO L129 PetriNetUnfolder]: 20/47 cut-off events. [2021-06-11 19:19:11,412 INFO L130 PetriNetUnfolder]: For 180/182 co-relation queries the response was YES. [2021-06-11 19:19:11,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 47 events. 20/47 cut-off events. For 180/182 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 119 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 210. Up to 22 conditions per place. [2021-06-11 19:19:11,413 INFO L151 LiptonReduction]: Number of co-enabled transitions 26 [2021-06-11 19:19:11,415 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:11,415 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:11,415 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 19:19:11,415 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 266 flow [2021-06-11 19:19:11,415 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) [2021-06-11 19:19:11,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:11,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:11,629 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-06-11 19:19:11,629 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:11,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:11,629 INFO L82 PathProgramCache]: Analyzing trace with hash 956276305, now seen corresponding path program 5 times [2021-06-11 19:19:11,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:11,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996304296] [2021-06-11 19:19:11,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:11,657 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 19:19:11,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:11,660 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:11,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:11,666 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-06-11 19:19:11,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:11,675 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:11,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:11,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:11,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996304296] [2021-06-11 19:19:11,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707113557] [2021-06-11 19:19:11,689 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:11,712 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:11,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:11,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:11,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:11,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:11,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:11,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,742 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:11,742 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 19:19:11,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:11,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:11,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:11,757 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:11,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:11,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:11,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:11,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:11,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:11,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:11,776 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:11,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:11,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:11,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:11,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:11,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,788 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:11,789 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:11,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:11,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:11,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:11,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:11,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 19:19:11,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718690118] [2021-06-11 19:19:11,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 19:19:11,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:11,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 19:19:11,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-11 19:19:11,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:11,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 266 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) [2021-06-11 19:19:11,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:11,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:11,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:11,924 INFO L129 PetriNetUnfolder]: 24/62 cut-off events. [2021-06-11 19:19:11,924 INFO L130 PetriNetUnfolder]: For 330/330 co-relation queries the response was YES. [2021-06-11 19:19:11,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 62 events. 24/62 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 179 event pairs, 2 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 337. Up to 42 conditions per place. [2021-06-11 19:19:11,925 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 23 selfloop transitions, 11 changer transitions 1/39 dead transitions. [2021-06-11 19:19:11,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 422 flow [2021-06-11 19:19:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:11,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 89 transitions. [2021-06-11 19:19:11,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5297619047619048 [2021-06-11 19:19:11,925 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 89 transitions. [2021-06-11 19:19:11,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 89 transitions. [2021-06-11 19:19:11,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:11,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 89 transitions. [2021-06-11 19:19:11,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,926 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:11,926 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 266 flow. Second operand 7 states and 89 transitions. [2021-06-11 19:19:11,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 422 flow [2021-06-11 19:19:11,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 376 flow, removed 17 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:11,928 INFO L241 Difference]: Finished difference. Result has 49 places, 36 transitions, 320 flow [2021-06-11 19:19:11,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=320, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2021-06-11 19:19:11,929 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 34 predicate places. [2021-06-11 19:19:11,929 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:11,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 36 transitions, 320 flow [2021-06-11 19:19:11,929 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 36 transitions, 320 flow [2021-06-11 19:19:11,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 320 flow [2021-06-11 19:19:11,932 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-06-11 19:19:11,932 INFO L130 PetriNetUnfolder]: For 378/378 co-relation queries the response was YES. [2021-06-11 19:19:11,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 60 events. 23/60 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 171 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 285. Up to 24 conditions per place. [2021-06-11 19:19:11,933 INFO L151 LiptonReduction]: Number of co-enabled transitions 28 [2021-06-11 19:19:11,935 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:11,935 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:11,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 19:19:11,935 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 320 flow [2021-06-11 19:19:11,935 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) [2021-06-11 19:19:11,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:11,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:12,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:12,151 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:12,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:12,151 INFO L82 PathProgramCache]: Analyzing trace with hash 955382575, now seen corresponding path program 6 times [2021-06-11 19:19:12,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:12,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113126703] [2021-06-11 19:19:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:12,179 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-06-11 19:19:12,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:12,183 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:12,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:12,189 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-06-11 19:19:12,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:12,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:12,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,213 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:12,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:12,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113126703] [2021-06-11 19:19:12,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616562494] [2021-06-11 19:19:12,220 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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) [2021-06-11 19:19:12,251 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 19:19:12,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:12,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-11 19:19:12,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:12,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:12,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,271 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:12,272 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:12,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,285 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:12,285 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 19:19:12,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:12,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:12,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:12,300 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:12,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:12,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,303 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:12,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:12,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:12,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:12,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:12,320 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:12,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:12,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:12,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:12,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:12,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,325 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size 64 [2021-06-11 19:19:12,326 INFO L142 QuantifierPusher]: treesize reduction -4, result has 106.7 percent of original size [2021-06-11 19:19:12,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:12,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:12,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:12,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2021-06-11 19:19:12,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594556281] [2021-06-11 19:19:12,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 19:19:12,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:12,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 19:19:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-06-11 19:19:12,359 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:12,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 320 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) [2021-06-11 19:19:12,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:12,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:12,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:12,478 INFO L129 PetriNetUnfolder]: 25/60 cut-off events. [2021-06-11 19:19:12,479 INFO L130 PetriNetUnfolder]: For 449/449 co-relation queries the response was YES. [2021-06-11 19:19:12,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 60 events. 25/60 cut-off events. For 449/449 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 168 event pairs, 2 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 346. Up to 42 conditions per place. [2021-06-11 19:19:12,479 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 22 selfloop transitions, 12 changer transitions 1/39 dead transitions. [2021-06-11 19:19:12,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 441 flow [2021-06-11 19:19:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2021-06-11 19:19:12,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2021-06-11 19:19:12,480 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 88 transitions. [2021-06-11 19:19:12,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 88 transitions. [2021-06-11 19:19:12,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:12,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 88 transitions. [2021-06-11 19:19:12,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 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) [2021-06-11 19:19:12,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:12,481 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:12,481 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 320 flow. Second operand 7 states and 88 transitions. [2021-06-11 19:19:12,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 39 transitions, 441 flow [2021-06-11 19:19:12,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 39 transitions, 368 flow, removed 33 selfloop flow, removed 3 redundant places. [2021-06-11 19:19:12,483 INFO L241 Difference]: Finished difference. Result has 54 places, 38 transitions, 329 flow [2021-06-11 19:19:12,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=329, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2021-06-11 19:19:12,484 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 39 predicate places. [2021-06-11 19:19:12,484 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:12,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 38 transitions, 329 flow [2021-06-11 19:19:12,484 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 38 transitions, 329 flow [2021-06-11 19:19:12,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 38 transitions, 329 flow [2021-06-11 19:19:12,488 INFO L129 PetriNetUnfolder]: 22/54 cut-off events. [2021-06-11 19:19:12,488 INFO L130 PetriNetUnfolder]: For 262/262 co-relation queries the response was YES. [2021-06-11 19:19:12,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 54 events. 22/54 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 157 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 261. Up to 22 conditions per place. [2021-06-11 19:19:12,489 INFO L151 LiptonReduction]: Number of co-enabled transitions 28 [2021-06-11 19:19:12,491 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:12,491 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:12,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 19:19:12,491 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 329 flow [2021-06-11 19:19:12,491 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) [2021-06-11 19:19:12,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:12,491 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:12,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:12,697 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash 514897681, now seen corresponding path program 7 times [2021-06-11 19:19:12,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:12,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274869504] [2021-06-11 19:19:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:12,725 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:12,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:12,744 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:12,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:12,760 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:12,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:12,770 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:12,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:12,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274869504] [2021-06-11 19:19:12,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181504366] [2021-06-11 19:19:12,779 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-06-11 19:19:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:12,797 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:12,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:12,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:12,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,805 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:12,806 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:12,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,835 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-06-11 19:19:12,836 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size [2021-06-11 19:19:12,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:12,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:12,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:12,853 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 19:19:12,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,855 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:12,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:12,856 INFO L147 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size 51 [2021-06-11 19:19:12,857 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size [2021-06-11 19:19:12,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:12,877 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:12,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:12,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,880 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:12,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:12,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:12,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:12,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:12,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:12,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:12,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619736089] [2021-06-11 19:19:12,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:12,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:12,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:12,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:12,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:12,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 329 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) [2021-06-11 19:19:12,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:12,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:12,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:13,051 INFO L129 PetriNetUnfolder]: 28/75 cut-off events. [2021-06-11 19:19:13,051 INFO L130 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2021-06-11 19:19:13,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 75 events. 28/75 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 240 event pairs, 1 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 418. Up to 47 conditions per place. [2021-06-11 19:19:13,052 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 30 selfloop transitions, 12 changer transitions 1/47 dead transitions. [2021-06-11 19:19:13,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 47 transitions, 531 flow [2021-06-11 19:19:13,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2021-06-11 19:19:13,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2021-06-11 19:19:13,053 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 103 transitions. [2021-06-11 19:19:13,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 103 transitions. [2021-06-11 19:19:13,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:13,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 103 transitions. [2021-06-11 19:19:13,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.875) internal successors, (103), 8 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) [2021-06-11 19:19:13,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:13,054 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:13,054 INFO L185 Difference]: Start difference. First operand has 53 places, 38 transitions, 329 flow. Second operand 8 states and 103 transitions. [2021-06-11 19:19:13,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 47 transitions, 531 flow [2021-06-11 19:19:13,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 47 transitions, 478 flow, removed 19 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:13,057 INFO L241 Difference]: Finished difference. Result has 59 places, 42 transitions, 386 flow [2021-06-11 19:19:13,058 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=386, PETRI_PLACES=59, PETRI_TRANSITIONS=42} [2021-06-11 19:19:13,058 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 44 predicate places. [2021-06-11 19:19:13,058 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:13,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 42 transitions, 386 flow [2021-06-11 19:19:13,058 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 42 transitions, 386 flow [2021-06-11 19:19:13,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 42 transitions, 386 flow [2021-06-11 19:19:13,062 INFO L129 PetriNetUnfolder]: 25/69 cut-off events. [2021-06-11 19:19:13,062 INFO L130 PetriNetUnfolder]: For 481/481 co-relation queries the response was YES. [2021-06-11 19:19:13,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 69 events. 25/69 cut-off events. For 481/481 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 217 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 346. Up to 25 conditions per place. [2021-06-11 19:19:13,063 INFO L151 LiptonReduction]: Number of co-enabled transitions 32 [2021-06-11 19:19:13,065 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:13,065 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:13,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 19:19:13,065 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 386 flow [2021-06-11 19:19:13,066 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) [2021-06-11 19:19:13,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:13,066 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:13,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-11 19:19:13,281 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:13,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:13,281 INFO L82 PathProgramCache]: Analyzing trace with hash 569800785, now seen corresponding path program 8 times [2021-06-11 19:19:13,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:13,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038606014] [2021-06-11 19:19:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:13,292 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:13,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:13,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:13,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:13,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:13,326 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:13,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:13,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038606014] [2021-06-11 19:19:13,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987407569] [2021-06-11 19:19:13,334 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:13,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:13,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:13,353 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:13,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:13,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,385 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:13,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:13,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:13,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:13,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:13,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,406 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:13,406 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:13,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:13,420 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:13,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:13,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:13,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:13,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:13,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:13,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:13,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:13,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297259776] [2021-06-11 19:19:13,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:13,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:13,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:13,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:13,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:13,443 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 386 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) [2021-06-11 19:19:13,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:13,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:13,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:13,572 INFO L129 PetriNetUnfolder]: 28/75 cut-off events. [2021-06-11 19:19:13,572 INFO L130 PetriNetUnfolder]: For 572/572 co-relation queries the response was YES. [2021-06-11 19:19:13,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 75 events. 28/75 cut-off events. For 572/572 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 240 event pairs, 1 based on Foata normal form. 2/77 useless extension candidates. Maximal degree in co-relation 440. Up to 52 conditions per place. [2021-06-11 19:19:13,573 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 30 selfloop transitions, 12 changer transitions 2/48 dead transitions. [2021-06-11 19:19:13,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 48 transitions, 568 flow [2021-06-11 19:19:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:13,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 121 transitions. [2021-06-11 19:19:13,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5041666666666667 [2021-06-11 19:19:13,578 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 121 transitions. [2021-06-11 19:19:13,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 121 transitions. [2021-06-11 19:19:13,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:13,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 121 transitions. [2021-06-11 19:19:13,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 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) [2021-06-11 19:19:13,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:13,579 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:13,579 INFO L185 Difference]: Start difference. First operand has 58 places, 42 transitions, 386 flow. Second operand 10 states and 121 transitions. [2021-06-11 19:19:13,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 48 transitions, 568 flow [2021-06-11 19:19:13,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 48 transitions, 499 flow, removed 29 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:13,582 INFO L241 Difference]: Finished difference. Result has 68 places, 46 transitions, 425 flow [2021-06-11 19:19:13,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=425, PETRI_PLACES=68, PETRI_TRANSITIONS=46} [2021-06-11 19:19:13,582 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 53 predicate places. [2021-06-11 19:19:13,582 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:13,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 46 transitions, 425 flow [2021-06-11 19:19:13,583 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 46 transitions, 425 flow [2021-06-11 19:19:13,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 46 transitions, 425 flow [2021-06-11 19:19:13,587 INFO L129 PetriNetUnfolder]: 26/68 cut-off events. [2021-06-11 19:19:13,587 INFO L130 PetriNetUnfolder]: For 473/479 co-relation queries the response was YES. [2021-06-11 19:19:13,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 68 events. 26/68 cut-off events. For 473/479 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 218 event pairs, 0 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 339. Up to 24 conditions per place. [2021-06-11 19:19:13,587 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 19:19:13,590 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:13,590 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:13,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 19:19:13,590 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 425 flow [2021-06-11 19:19:13,590 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) [2021-06-11 19:19:13,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:13,591 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:13,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-11 19:19:13,806 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:13,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:13,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2096039031, now seen corresponding path program 9 times [2021-06-11 19:19:13,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:13,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314233659] [2021-06-11 19:19:13,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:13,823 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:13,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:13,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:13,840 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:13,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:13,850 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:13,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:13,858 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:13,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:13,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314233659] [2021-06-11 19:19:13,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159574941] [2021-06-11 19:19:13,865 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 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 [2021-06-11 19:19:13,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:13,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:13,883 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:13,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:13,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:13,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,893 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:13,893 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:13,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:13,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:13,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,917 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-06-11 19:19:13,917 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-06-11 19:19:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:13,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:13,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:13,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,930 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 47 [2021-06-11 19:19:13,930 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:13,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:13,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:13,945 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:13,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:13,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:13,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:13,950 INFO L147 QuantifierPusher]: treesize reduction -2, result has 101.9 percent of original size 105 [2021-06-11 19:19:13,951 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.9 percent of original size [2021-06-11 19:19:13,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-06-11 19:19:13,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-06-11 19:19:13,985 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-06-11 19:19:13,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-06-11 19:19:13,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:13,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:13,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:13,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:13,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-06-11 19:19:13,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:13,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:13,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:14,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:14,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:14,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251054225] [2021-06-11 19:19:14,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:14,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:14,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:14,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:14,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:14,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 425 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) [2021-06-11 19:19:14,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:14,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:14,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:14,164 INFO L129 PetriNetUnfolder]: 27/68 cut-off events. [2021-06-11 19:19:14,164 INFO L130 PetriNetUnfolder]: For 618/622 co-relation queries the response was YES. [2021-06-11 19:19:14,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 68 events. 27/68 cut-off events. For 618/622 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 215 event pairs, 0 based on Foata normal form. 5/73 useless extension candidates. Maximal degree in co-relation 413. Up to 48 conditions per place. [2021-06-11 19:19:14,165 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 29 selfloop transitions, 15 changer transitions 1/49 dead transitions. [2021-06-11 19:19:14,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 49 transitions, 550 flow [2021-06-11 19:19:14,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:14,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions. [2021-06-11 19:19:14,165 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5260416666666666 [2021-06-11 19:19:14,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 101 transitions. [2021-06-11 19:19:14,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 101 transitions. [2021-06-11 19:19:14,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:14,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 101 transitions. [2021-06-11 19:19:14,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 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) [2021-06-11 19:19:14,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:14,166 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 24.0) internal successors, (216), 9 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:14,166 INFO L185 Difference]: Start difference. First operand has 66 places, 46 transitions, 425 flow. Second operand 8 states and 101 transitions. [2021-06-11 19:19:14,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 49 transitions, 550 flow [2021-06-11 19:19:14,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 49 transitions, 480 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:14,169 INFO L241 Difference]: Finished difference. Result has 70 places, 48 transitions, 429 flow [2021-06-11 19:19:14,169 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=429, PETRI_PLACES=70, PETRI_TRANSITIONS=48} [2021-06-11 19:19:14,170 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 55 predicate places. [2021-06-11 19:19:14,170 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:14,170 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 48 transitions, 429 flow [2021-06-11 19:19:14,170 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 48 transitions, 429 flow [2021-06-11 19:19:14,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 48 transitions, 429 flow [2021-06-11 19:19:14,174 INFO L129 PetriNetUnfolder]: 26/63 cut-off events. [2021-06-11 19:19:14,174 INFO L130 PetriNetUnfolder]: For 485/491 co-relation queries the response was YES. [2021-06-11 19:19:14,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 63 events. 26/63 cut-off events. For 485/491 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 193 event pairs, 1 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 316. Up to 21 conditions per place. [2021-06-11 19:19:14,174 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 19:19:14,177 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:14,177 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:14,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 19:19:14,177 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 429 flow [2021-06-11 19:19:14,178 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) [2021-06-11 19:19:14,178 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:14,178 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:14,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-11 19:19:14,395 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:14,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:14,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1322483755, now seen corresponding path program 10 times [2021-06-11 19:19:14,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:14,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133686543] [2021-06-11 19:19:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:14,405 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:14,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:14,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:14,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:14,428 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:14,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:14,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:14,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:14,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133686543] [2021-06-11 19:19:14,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198714992] [2021-06-11 19:19:14,445 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:14,461 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:14,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:14,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:14,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:14,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:14,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,481 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-11 19:19:14,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:14,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:14,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:14,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:14,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:14,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,499 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:14,499 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:14,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:14,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:14,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:14,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,515 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-06-11 19:19:14,515 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:14,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:14,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:14,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:14,533 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-06-11 19:19:14,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 19:19:14,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,535 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:14,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:14,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:14,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:14,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:14,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790742898] [2021-06-11 19:19:14,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:14,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:14,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:14,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:14,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:14,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 429 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) [2021-06-11 19:19:14,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:14,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:14,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:14,802 INFO L129 PetriNetUnfolder]: 28/73 cut-off events. [2021-06-11 19:19:14,802 INFO L130 PetriNetUnfolder]: For 752/752 co-relation queries the response was YES. [2021-06-11 19:19:14,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 73 events. 28/73 cut-off events. For 752/752 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 228 event pairs, 1 based on Foata normal form. 2/75 useless extension candidates. Maximal degree in co-relation 451. Up to 52 conditions per place. [2021-06-11 19:19:14,803 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 36 selfloop transitions, 5 changer transitions 7/52 dead transitions. [2021-06-11 19:19:14,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 52 transitions, 609 flow [2021-06-11 19:19:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 119 transitions. [2021-06-11 19:19:14,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49583333333333335 [2021-06-11 19:19:14,804 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 119 transitions. [2021-06-11 19:19:14,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 119 transitions. [2021-06-11 19:19:14,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:14,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 119 transitions. [2021-06-11 19:19:14,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 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) [2021-06-11 19:19:14,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:14,805 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 24.0) internal successors, (264), 11 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:14,805 INFO L185 Difference]: Start difference. First operand has 69 places, 48 transitions, 429 flow. Second operand 10 states and 119 transitions. [2021-06-11 19:19:14,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 52 transitions, 609 flow [2021-06-11 19:19:14,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 52 transitions, 542 flow, removed 23 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:14,808 INFO L241 Difference]: Finished difference. Result has 77 places, 45 transitions, 367 flow [2021-06-11 19:19:14,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=367, PETRI_PLACES=77, PETRI_TRANSITIONS=45} [2021-06-11 19:19:14,809 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 62 predicate places. [2021-06-11 19:19:14,809 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:14,809 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 45 transitions, 367 flow [2021-06-11 19:19:14,809 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 45 transitions, 367 flow [2021-06-11 19:19:14,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 45 transitions, 367 flow [2021-06-11 19:19:14,812 INFO L129 PetriNetUnfolder]: 25/60 cut-off events. [2021-06-11 19:19:14,812 INFO L130 PetriNetUnfolder]: For 526/526 co-relation queries the response was YES. [2021-06-11 19:19:14,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 60 events. 25/60 cut-off events. For 526/526 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 181 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 302. Up to 18 conditions per place. [2021-06-11 19:19:14,813 INFO L151 LiptonReduction]: Number of co-enabled transitions 30 [2021-06-11 19:19:14,815 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:14,815 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:14,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 19:19:14,816 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 367 flow [2021-06-11 19:19:14,816 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) [2021-06-11 19:19:14,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:14,816 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:15,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:15,017 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:15,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:15,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1351086459, now seen corresponding path program 11 times [2021-06-11 19:19:15,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:15,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858264548] [2021-06-11 19:19:15,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:15,026 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:15,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:15,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,045 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:15,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:15,059 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:15,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:15,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:15,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:15,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858264548] [2021-06-11 19:19:15,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466590368] [2021-06-11 19:19:15,078 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:15,100 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:15,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:15,100 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:15,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:15,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,128 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-06-11 19:19:15,129 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-06-11 19:19:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,143 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.0 percent of original size 47 [2021-06-11 19:19:15,144 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.0 percent of original size [2021-06-11 19:19:15,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:15,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:15,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:15,161 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:15,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:15,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,162 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:15,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:15,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:15,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:15,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:15,183 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:15,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:15,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,187 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:15,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:15,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:15,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:15,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:15,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:15,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102819868] [2021-06-11 19:19:15,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:15,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:15,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:15,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:15,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:15,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 367 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) [2021-06-11 19:19:15,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:15,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:15,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:15,508 INFO L129 PetriNetUnfolder]: 30/84 cut-off events. [2021-06-11 19:19:15,508 INFO L130 PetriNetUnfolder]: For 1028/1028 co-relation queries the response was YES. [2021-06-11 19:19:15,508 INFO L84 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 84 events. 30/84 cut-off events. For 1028/1028 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 292 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 509. Up to 52 conditions per place. [2021-06-11 19:19:15,509 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 34 selfloop transitions, 19 changer transitions 1/58 dead transitions. [2021-06-11 19:19:15,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 58 transitions, 697 flow [2021-06-11 19:19:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-11 19:19:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-11 19:19:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 170 transitions. [2021-06-11 19:19:15,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2021-06-11 19:19:15,510 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 170 transitions. [2021-06-11 19:19:15,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 170 transitions. [2021-06-11 19:19:15,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:15,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 170 transitions. [2021-06-11 19:19:15,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 14 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) [2021-06-11 19:19:15,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 24.0) internal successors, (360), 15 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:15,511 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 24.0) internal successors, (360), 15 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:15,511 INFO L185 Difference]: Start difference. First operand has 69 places, 45 transitions, 367 flow. Second operand 14 states and 170 transitions. [2021-06-11 19:19:15,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 58 transitions, 697 flow [2021-06-11 19:19:15,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 58 transitions, 641 flow, removed 23 selfloop flow, removed 8 redundant places. [2021-06-11 19:19:15,515 INFO L241 Difference]: Finished difference. Result has 76 places, 53 transitions, 541 flow [2021-06-11 19:19:15,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=541, PETRI_PLACES=76, PETRI_TRANSITIONS=53} [2021-06-11 19:19:15,515 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 61 predicate places. [2021-06-11 19:19:15,515 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:15,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 53 transitions, 541 flow [2021-06-11 19:19:15,516 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 53 transitions, 541 flow [2021-06-11 19:19:15,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 53 transitions, 541 flow [2021-06-11 19:19:15,520 INFO L129 PetriNetUnfolder]: 28/79 cut-off events. [2021-06-11 19:19:15,520 INFO L130 PetriNetUnfolder]: For 811/811 co-relation queries the response was YES. [2021-06-11 19:19:15,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 79 events. 28/79 cut-off events. For 811/811 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 267 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 418. Up to 27 conditions per place. [2021-06-11 19:19:15,521 INFO L151 LiptonReduction]: Number of co-enabled transitions 42 [2021-06-11 19:19:15,524 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:15,524 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:15,525 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 19:19:15,525 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 53 transitions, 541 flow [2021-06-11 19:19:15,525 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) [2021-06-11 19:19:15,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:15,525 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:15,740 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-11 19:19:15,740 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:15,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:15,740 INFO L82 PathProgramCache]: Analyzing trace with hash -432242539, now seen corresponding path program 12 times [2021-06-11 19:19:15,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:15,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048150474] [2021-06-11 19:19:15,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:15,750 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:15,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:15,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,769 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:15,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:15,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:15,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:15,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:15,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:15,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048150474] [2021-06-11 19:19:15,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590507013] [2021-06-11 19:19:15,796 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:15,813 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:15,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:15,813 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:15,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:15,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:15,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:15,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,835 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:15,836 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:15,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,849 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:15,849 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:15,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:15,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:15,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:15,863 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:15,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:15,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:15,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:15,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:15,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:15,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:15,884 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:15,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:15,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:15,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:15,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:15,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:15,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:15,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:15,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:15,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362060702] [2021-06-11 19:19:15,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:15,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:15,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:15,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:15,910 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2021-06-11 19:19:15,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 53 transitions, 541 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) [2021-06-11 19:19:15,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:15,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2021-06-11 19:19:15,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:16,138 INFO L129 PetriNetUnfolder]: 30/80 cut-off events. [2021-06-11 19:19:16,138 INFO L130 PetriNetUnfolder]: For 912/912 co-relation queries the response was YES. [2021-06-11 19:19:16,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 80 events. 30/80 cut-off events. For 912/912 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 272 event pairs, 1 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 501. Up to 52 conditions per place. [2021-06-11 19:19:16,139 INFO L132 encePairwiseOnDemand]: 18/24 looper letters, 36 selfloop transitions, 17 changer transitions 1/58 dead transitions. [2021-06-11 19:19:16,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 58 transitions, 720 flow [2021-06-11 19:19:16,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 138 transitions. [2021-06-11 19:19:16,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2021-06-11 19:19:16,140 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 138 transitions. [2021-06-11 19:19:16,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 138 transitions. [2021-06-11 19:19:16,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:16,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 138 transitions. [2021-06-11 19:19:16,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 24.0) internal successors, (288), 12 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,142 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 24.0) internal successors, (288), 12 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,142 INFO L185 Difference]: Start difference. First operand has 75 places, 53 transitions, 541 flow. Second operand 11 states and 138 transitions. [2021-06-11 19:19:16,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 58 transitions, 720 flow [2021-06-11 19:19:16,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 58 transitions, 500 flow, removed 89 selfloop flow, removed 13 redundant places. [2021-06-11 19:19:16,146 INFO L241 Difference]: Finished difference. Result has 75 places, 55 transitions, 430 flow [2021-06-11 19:19:16,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=430, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2021-06-11 19:19:16,146 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 60 predicate places. [2021-06-11 19:19:16,146 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:16,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 55 transitions, 430 flow [2021-06-11 19:19:16,146 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 55 transitions, 430 flow [2021-06-11 19:19:16,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 55 transitions, 430 flow [2021-06-11 19:19:16,151 INFO L129 PetriNetUnfolder]: 28/74 cut-off events. [2021-06-11 19:19:16,151 INFO L130 PetriNetUnfolder]: For 417/422 co-relation queries the response was YES. [2021-06-11 19:19:16,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 74 events. 28/74 cut-off events. For 417/422 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 228 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 309. Up to 20 conditions per place. [2021-06-11 19:19:16,152 INFO L151 LiptonReduction]: Number of co-enabled transitions 40 [2021-06-11 19:19:16,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 19:19:16,215 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:16,217 INFO L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-06-11 19:19:16,283 INFO L163 LiptonReduction]: Checked pairs total: 4 [2021-06-11 19:19:16,283 INFO L165 LiptonReduction]: Total number of compositions: 4 [2021-06-11 19:19:16,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 137 [2021-06-11 19:19:16,284 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 54 transitions, 430 flow [2021-06-11 19:19:16,284 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) [2021-06-11 19:19:16,284 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:16,284 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:16,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-11 19:19:16,497 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:16,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:16,497 INFO L82 PathProgramCache]: Analyzing trace with hash -376831279, now seen corresponding path program 13 times [2021-06-11 19:19:16,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:16,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579433452] [2021-06-11 19:19:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:16,507 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:16,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:16,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:16,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:16,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:16,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:16,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579433452] [2021-06-11 19:19:16,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012137267] [2021-06-11 19:19:16,550 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:16,569 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:16,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:16,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:16,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,577 INFO L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-06-11 19:19:16,577 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-06-11 19:19:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,592 INFO L147 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size 16 [2021-06-11 19:19:16,592 INFO L142 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-06-11 19:19:16,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,604 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-11 19:19:16,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:16,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,605 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:16,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:16,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:16,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:16,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:16,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:16,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:16,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:16,637 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:16,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:16,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,638 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:16,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:16,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:16,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:16,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:16,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:16,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:16,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115365500] [2021-06-11 19:19:16,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:16,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:16,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:16,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:16,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:16,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 54 transitions, 430 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) [2021-06-11 19:19:16,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:16,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:16,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:16,890 INFO L129 PetriNetUnfolder]: 30/78 cut-off events. [2021-06-11 19:19:16,890 INFO L130 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2021-06-11 19:19:16,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 78 events. 30/78 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 280 event pairs, 1 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 418. Up to 54 conditions per place. [2021-06-11 19:19:16,891 INFO L132 encePairwiseOnDemand]: 19/28 looper letters, 37 selfloop transitions, 8 changer transitions 7/56 dead transitions. [2021-06-11 19:19:16,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 56 transitions, 568 flow [2021-06-11 19:19:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 122 transitions. [2021-06-11 19:19:16,892 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4357142857142857 [2021-06-11 19:19:16,892 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 122 transitions. [2021-06-11 19:19:16,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 122 transitions. [2021-06-11 19:19:16,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:16,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 122 transitions. [2021-06-11 19:19:16,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,893 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:16,893 INFO L185 Difference]: Start difference. First operand has 73 places, 54 transitions, 430 flow. Second operand 10 states and 122 transitions. [2021-06-11 19:19:16,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 56 transitions, 568 flow [2021-06-11 19:19:16,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 56 transitions, 500 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:16,896 INFO L241 Difference]: Finished difference. Result has 79 places, 49 transitions, 364 flow [2021-06-11 19:19:16,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=364, PETRI_PLACES=79, PETRI_TRANSITIONS=49} [2021-06-11 19:19:16,896 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 64 predicate places. [2021-06-11 19:19:16,896 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:16,896 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 49 transitions, 364 flow [2021-06-11 19:19:16,896 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 49 transitions, 364 flow [2021-06-11 19:19:16,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 49 transitions, 364 flow [2021-06-11 19:19:16,900 INFO L129 PetriNetUnfolder]: 27/63 cut-off events. [2021-06-11 19:19:16,900 INFO L130 PetriNetUnfolder]: For 338/343 co-relation queries the response was YES. [2021-06-11 19:19:16,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 63 events. 27/63 cut-off events. For 338/343 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 187 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 271. Up to 19 conditions per place. [2021-06-11 19:19:16,900 INFO L151 LiptonReduction]: Number of co-enabled transitions 30 [2021-06-11 19:19:16,903 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:16,904 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:16,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 19:19:16,904 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 364 flow [2021-06-11 19:19:16,904 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) [2021-06-11 19:19:16,904 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:16,904 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:17,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-11 19:19:17,119 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:17,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:17,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1236569855, now seen corresponding path program 14 times [2021-06-11 19:19:17,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:17,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756116375] [2021-06-11 19:19:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:17,132 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:17,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:17,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:17,150 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:17,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:17,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:17,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:17,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:17,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:17,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756116375] [2021-06-11 19:19:17,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508513749] [2021-06-11 19:19:17,178 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 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 [2021-06-11 19:19:17,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:17,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:17,194 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:17,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:17,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,206 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:17,207 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:17,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,224 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size 26 [2021-06-11 19:19:17,224 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.0 percent of original size [2021-06-11 19:19:17,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,239 INFO L147 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size 39 [2021-06-11 19:19:17,239 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size [2021-06-11 19:19:17,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:17,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:17,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:17,256 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 19:19:17,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:17,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:17,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:17,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:17,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:17,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:17,281 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:17,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:17,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,283 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:17,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:17,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:17,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:17,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:17,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:17,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929117597] [2021-06-11 19:19:17,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:17,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:17,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:17,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:17,309 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:17,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 364 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) [2021-06-11 19:19:17,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:17,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:17,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:17,469 INFO L129 PetriNetUnfolder]: 32/85 cut-off events. [2021-06-11 19:19:17,469 INFO L130 PetriNetUnfolder]: For 794/794 co-relation queries the response was YES. [2021-06-11 19:19:17,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 85 events. 32/85 cut-off events. For 794/794 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 283 event pairs, 1 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 465. Up to 51 conditions per place. [2021-06-11 19:19:17,470 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 31 selfloop transitions, 21 changer transitions 1/57 dead transitions. [2021-06-11 19:19:17,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 57 transitions, 594 flow [2021-06-11 19:19:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:17,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 140 transitions. [2021-06-11 19:19:17,471 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2021-06-11 19:19:17,471 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 140 transitions. [2021-06-11 19:19:17,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 140 transitions. [2021-06-11 19:19:17,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:17,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 140 transitions. [2021-06-11 19:19:17,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 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) [2021-06-11 19:19:17,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:17,472 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:17,472 INFO L185 Difference]: Start difference. First operand has 68 places, 49 transitions, 364 flow. Second operand 11 states and 140 transitions. [2021-06-11 19:19:17,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 57 transitions, 594 flow [2021-06-11 19:19:17,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 57 transitions, 562 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:17,476 INFO L241 Difference]: Finished difference. Result has 74 places, 53 transitions, 471 flow [2021-06-11 19:19:17,476 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=471, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2021-06-11 19:19:17,476 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 59 predicate places. [2021-06-11 19:19:17,476 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:17,476 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 53 transitions, 471 flow [2021-06-11 19:19:17,477 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 53 transitions, 471 flow [2021-06-11 19:19:17,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 53 transitions, 471 flow [2021-06-11 19:19:17,482 INFO L129 PetriNetUnfolder]: 30/78 cut-off events. [2021-06-11 19:19:17,482 INFO L130 PetriNetUnfolder]: For 674/679 co-relation queries the response was YES. [2021-06-11 19:19:17,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 78 events. 30/78 cut-off events. For 674/679 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 259 event pairs, 1 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 390. Up to 26 conditions per place. [2021-06-11 19:19:17,482 INFO L151 LiptonReduction]: Number of co-enabled transitions 34 [2021-06-11 19:19:17,488 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:17,488 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:17,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:17,490 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 471 flow [2021-06-11 19:19:17,490 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) [2021-06-11 19:19:17,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:17,490 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:17,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:17,697 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:17,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:17,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1319686745, now seen corresponding path program 15 times [2021-06-11 19:19:17,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:17,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816593374] [2021-06-11 19:19:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:17,706 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:17,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:17,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:17,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:17,730 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:17,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:17,740 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:17,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:17,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816593374] [2021-06-11 19:19:17,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353788116] [2021-06-11 19:19:17,748 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 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 [2021-06-11 19:19:17,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:17,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:17,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:17,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:17,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:17,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,775 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:17,776 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:17,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:17,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,788 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size 26 [2021-06-11 19:19:17,789 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:17,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,802 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.7 percent of original size [2021-06-11 19:19:17,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:17,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,803 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:17,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:17,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:17,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,819 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.7 percent of original size 39 [2021-06-11 19:19:17,819 INFO L142 QuantifierPusher]: treesize reduction 6, result has 87.0 percent of original size [2021-06-11 19:19:17,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:17,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:17,839 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:17,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:17,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,841 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:17,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:17,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:17,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:17,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:17,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:17,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50272842] [2021-06-11 19:19:17,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:17,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:17,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:17,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:17,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:17,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 471 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) [2021-06-11 19:19:17,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:17,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:17,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:18,016 INFO L129 PetriNetUnfolder]: 32/85 cut-off events. [2021-06-11 19:19:18,016 INFO L130 PetriNetUnfolder]: For 852/852 co-relation queries the response was YES. [2021-06-11 19:19:18,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 85 events. 32/85 cut-off events. For 852/852 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 278 event pairs, 1 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 510. Up to 59 conditions per place. [2021-06-11 19:19:18,017 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 35 selfloop transitions, 16 changer transitions 2/57 dead transitions. [2021-06-11 19:19:18,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 57 transitions, 662 flow [2021-06-11 19:19:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 144 transitions. [2021-06-11 19:19:18,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-11 19:19:18,019 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 144 transitions. [2021-06-11 19:19:18,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 144 transitions. [2021-06-11 19:19:18,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:18,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 144 transitions. [2021-06-11 19:19:18,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 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) [2021-06-11 19:19:18,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:18,020 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:18,020 INFO L185 Difference]: Start difference. First operand has 73 places, 53 transitions, 471 flow. Second operand 12 states and 144 transitions. [2021-06-11 19:19:18,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 57 transitions, 662 flow [2021-06-11 19:19:18,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 57 transitions, 583 flow, removed 28 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:18,024 INFO L241 Difference]: Finished difference. Result has 81 places, 55 transitions, 483 flow [2021-06-11 19:19:18,024 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=483, PETRI_PLACES=81, PETRI_TRANSITIONS=55} [2021-06-11 19:19:18,024 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 66 predicate places. [2021-06-11 19:19:18,024 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:18,024 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 55 transitions, 483 flow [2021-06-11 19:19:18,024 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 55 transitions, 483 flow [2021-06-11 19:19:18,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 55 transitions, 483 flow [2021-06-11 19:19:18,029 INFO L129 PetriNetUnfolder]: 30/75 cut-off events. [2021-06-11 19:19:18,029 INFO L130 PetriNetUnfolder]: For 578/584 co-relation queries the response was YES. [2021-06-11 19:19:18,029 INFO L84 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 75 events. 30/75 cut-off events. For 578/584 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 244 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 369. Up to 20 conditions per place. [2021-06-11 19:19:18,029 INFO L151 LiptonReduction]: Number of co-enabled transitions 34 [2021-06-11 19:19:18,033 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:18,033 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:18,033 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:18,033 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 55 transitions, 483 flow [2021-06-11 19:19:18,033 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) [2021-06-11 19:19:18,033 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:18,034 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:18,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:18,248 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:18,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1949205837, now seen corresponding path program 3 times [2021-06-11 19:19:18,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:18,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651213653] [2021-06-11 19:19:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:18,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,282 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:18,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:18,306 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:18,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:18,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651213653] [2021-06-11 19:19:18,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490145750] [2021-06-11 19:19:18,340 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 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 [2021-06-11 19:19:18,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:18,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:18,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-11 19:19:18,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:18,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:18,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:18,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:18,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:18,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:18,419 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:18,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:18,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,421 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:18,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:18,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:18,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:18,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:18,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:18,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 19:19:18,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49351280] [2021-06-11 19:19:18,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 19:19:18,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:18,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 19:19:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-06-11 19:19:18,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2021-06-11 19:19:18,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 55 transitions, 483 flow. Second operand has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:18,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:18,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2021-06-11 19:19:18,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:18,617 INFO L129 PetriNetUnfolder]: 33/85 cut-off events. [2021-06-11 19:19:18,617 INFO L130 PetriNetUnfolder]: For 856/862 co-relation queries the response was YES. [2021-06-11 19:19:18,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 85 events. 33/85 cut-off events. For 856/862 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 287 event pairs, 0 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 518. Up to 58 conditions per place. [2021-06-11 19:19:18,618 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 38 selfloop transitions, 10 changer transitions 2/59 dead transitions. [2021-06-11 19:19:18,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 59 transitions, 665 flow [2021-06-11 19:19:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 107 transitions. [2021-06-11 19:19:18,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5459183673469388 [2021-06-11 19:19:18,619 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 107 transitions. [2021-06-11 19:19:18,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 107 transitions. [2021-06-11 19:19:18,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:18,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 107 transitions. [2021-06-11 19:19:18,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:18,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 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) [2021-06-11 19:19:18,625 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 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) [2021-06-11 19:19:18,625 INFO L185 Difference]: Start difference. First operand has 79 places, 55 transitions, 483 flow. Second operand 7 states and 107 transitions. [2021-06-11 19:19:18,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 59 transitions, 665 flow [2021-06-11 19:19:18,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 59 transitions, 607 flow, removed 16 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:18,628 INFO L241 Difference]: Finished difference. Result has 78 places, 57 transitions, 498 flow [2021-06-11 19:19:18,628 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=498, PETRI_PLACES=78, PETRI_TRANSITIONS=57} [2021-06-11 19:19:18,628 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 63 predicate places. [2021-06-11 19:19:18,628 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:18,629 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 57 transitions, 498 flow [2021-06-11 19:19:18,629 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 57 transitions, 498 flow [2021-06-11 19:19:18,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 57 transitions, 498 flow [2021-06-11 19:19:18,633 INFO L129 PetriNetUnfolder]: 32/80 cut-off events. [2021-06-11 19:19:18,633 INFO L130 PetriNetUnfolder]: For 656/662 co-relation queries the response was YES. [2021-06-11 19:19:18,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 80 events. 32/80 cut-off events. For 656/662 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 264 event pairs, 1 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 411. Up to 22 conditions per place. [2021-06-11 19:19:18,634 INFO L151 LiptonReduction]: Number of co-enabled transitions 38 [2021-06-11 19:19:18,638 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:18,638 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:18,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 19:19:18,640 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 57 transitions, 498 flow [2021-06-11 19:19:18,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:18,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:18,640 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:18,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-06-11 19:19:18,855 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:18,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:18,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1235762615, now seen corresponding path program 16 times [2021-06-11 19:19:18,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:18,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020634672] [2021-06-11 19:19:18,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:18,873 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:18,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:18,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:18,890 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:18,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:18,901 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:18,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:18,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:18,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:18,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020634672] [2021-06-11 19:19:18,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930291656] [2021-06-11 19:19:18,918 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:18,943 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:18,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:18,943 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:18,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:18,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,952 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-06-11 19:19:18,952 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-06-11 19:19:18,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:18,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,962 INFO L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-06-11 19:19:18,962 INFO L142 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-06-11 19:19:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:18,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:18,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:18,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,972 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-06-11 19:19:18,973 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 19:19:18,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:18,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:18,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:18,986 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:18,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:18,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:18,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:18,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:18,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:18,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:18,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:19,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:19,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:19,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:19,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:19,006 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:19,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:19,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:19,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:19,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:19,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:19,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:19,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:19,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057144935] [2021-06-11 19:19:19,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:19,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:19,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:19,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:19,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 57 transitions, 498 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) [2021-06-11 19:19:19,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:19,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:19,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:19,176 INFO L129 PetriNetUnfolder]: 33/82 cut-off events. [2021-06-11 19:19:19,176 INFO L130 PetriNetUnfolder]: For 873/873 co-relation queries the response was YES. [2021-06-11 19:19:19,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 82 events. 33/82 cut-off events. For 873/873 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 262 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 513. Up to 56 conditions per place. [2021-06-11 19:19:19,177 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 32 selfloop transitions, 23 changer transitions 1/60 dead transitions. [2021-06-11 19:19:19,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 60 transitions, 651 flow [2021-06-11 19:19:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 138 transitions. [2021-06-11 19:19:19,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44805194805194803 [2021-06-11 19:19:19,180 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 138 transitions. [2021-06-11 19:19:19,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 138 transitions. [2021-06-11 19:19:19,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:19,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 138 transitions. [2021-06-11 19:19:19,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:19,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:19,181 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:19,181 INFO L185 Difference]: Start difference. First operand has 77 places, 57 transitions, 498 flow. Second operand 11 states and 138 transitions. [2021-06-11 19:19:19,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 60 transitions, 651 flow [2021-06-11 19:19:19,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 60 transitions, 610 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:19,185 INFO L241 Difference]: Finished difference. Result has 85 places, 59 transitions, 553 flow [2021-06-11 19:19:19,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2021-06-11 19:19:19,185 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 70 predicate places. [2021-06-11 19:19:19,185 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:19,185 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 59 transitions, 553 flow [2021-06-11 19:19:19,185 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 59 transitions, 553 flow [2021-06-11 19:19:19,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 59 transitions, 553 flow [2021-06-11 19:19:19,189 INFO L129 PetriNetUnfolder]: 32/77 cut-off events. [2021-06-11 19:19:19,189 INFO L130 PetriNetUnfolder]: For 668/674 co-relation queries the response was YES. [2021-06-11 19:19:19,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 77 events. 32/77 cut-off events. For 668/674 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 250 event pairs, 1 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 412. Up to 21 conditions per place. [2021-06-11 19:19:19,190 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 19:19:19,194 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:19,194 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:19,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:19,194 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 59 transitions, 553 flow [2021-06-11 19:19:19,194 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) [2021-06-11 19:19:19,194 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:19,194 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:19,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-06-11 19:19:19,408 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:19,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:19,409 INFO L82 PathProgramCache]: Analyzing trace with hash -445946065, now seen corresponding path program 17 times [2021-06-11 19:19:19,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:19,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760970941] [2021-06-11 19:19:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:19,417 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:19,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:19,422 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:19,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:19,441 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:19,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:19,450 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:19,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:19,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760970941] [2021-06-11 19:19:19,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912227659] [2021-06-11 19:19:19,458 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:19,486 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:19,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:19,487 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:19,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:19,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:19,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:19,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:19,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:19,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:19,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,549 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-06-11 19:19:19,549 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-06-11 19:19:19,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:19,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:19,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:19,564 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:19,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:19,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,565 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:19,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:19,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:19,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:19,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,598 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:19,598 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:19,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:19,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:19,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:19,616 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:19,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:19,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,617 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:19,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:19,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:19,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:19,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:19,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:19,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:19,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:19,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468695311] [2021-06-11 19:19:19,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:19,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:19,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:19,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:19,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:19,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 59 transitions, 553 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) [2021-06-11 19:19:19,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:19,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:19,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:19,903 INFO L129 PetriNetUnfolder]: 34/89 cut-off events. [2021-06-11 19:19:19,903 INFO L130 PetriNetUnfolder]: For 983/983 co-relation queries the response was YES. [2021-06-11 19:19:19,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 89 events. 34/89 cut-off events. For 983/983 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 287 event pairs, 2 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 575. Up to 61 conditions per place. [2021-06-11 19:19:19,904 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 42 selfloop transitions, 8 changer transitions 9/63 dead transitions. [2021-06-11 19:19:19,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 63 transitions, 775 flow [2021-06-11 19:19:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 144 transitions. [2021-06-11 19:19:19,905 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-11 19:19:19,905 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 144 transitions. [2021-06-11 19:19:19,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 144 transitions. [2021-06-11 19:19:19,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:19,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 144 transitions. [2021-06-11 19:19:19,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 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) [2021-06-11 19:19:19,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:19,906 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:19,906 INFO L185 Difference]: Start difference. First operand has 84 places, 59 transitions, 553 flow. Second operand 12 states and 144 transitions. [2021-06-11 19:19:19,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 63 transitions, 775 flow [2021-06-11 19:19:19,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 63 transitions, 680 flow, removed 29 selfloop flow, removed 8 redundant places. [2021-06-11 19:19:19,910 INFO L241 Difference]: Finished difference. Result has 91 places, 54 transitions, 453 flow [2021-06-11 19:19:19,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=453, PETRI_PLACES=91, PETRI_TRANSITIONS=54} [2021-06-11 19:19:19,910 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 76 predicate places. [2021-06-11 19:19:19,910 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:19,910 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 54 transitions, 453 flow [2021-06-11 19:19:19,910 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 54 transitions, 453 flow [2021-06-11 19:19:19,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 54 transitions, 453 flow [2021-06-11 19:19:19,914 INFO L129 PetriNetUnfolder]: 30/72 cut-off events. [2021-06-11 19:19:19,914 INFO L130 PetriNetUnfolder]: For 585/593 co-relation queries the response was YES. [2021-06-11 19:19:19,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 72 events. 30/72 cut-off events. For 585/593 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 220 event pairs, 1 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 359. Up to 19 conditions per place. [2021-06-11 19:19:19,915 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 19:19:19,918 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:19,918 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:19,918 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 19:19:19,918 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 54 transitions, 453 flow [2021-06-11 19:19:19,919 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) [2021-06-11 19:19:19,919 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:19,919 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:20,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:20,128 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:20,128 INFO L82 PathProgramCache]: Analyzing trace with hash 382123397, now seen corresponding path program 18 times [2021-06-11 19:19:20,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:20,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872799521] [2021-06-11 19:19:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:20,137 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:20,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:20,141 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:20,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:20,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:20,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:20,153 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:20,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:20,163 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,172 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:20,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:20,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872799521] [2021-06-11 19:19:20,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091432239] [2021-06-11 19:19:20,179 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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) [2021-06-11 19:19:20,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 19:19:20,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:20,211 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:20,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:20,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:20,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,227 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:20,227 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:20,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:20,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:20,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:20,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,239 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-06-11 19:19:20,239 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-06-11 19:19:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:20,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:20,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:20,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,269 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:20,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:20,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,270 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:20,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:20,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:20,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:20,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:20,285 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:20,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:20,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:20,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:20,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:20,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:20,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:20,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242359893] [2021-06-11 19:19:20,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:20,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:20,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:20,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:20,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:20,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 54 transitions, 453 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) [2021-06-11 19:19:20,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:20,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:20,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:20,412 INFO L129 PetriNetUnfolder]: 35/93 cut-off events. [2021-06-11 19:19:20,412 INFO L130 PetriNetUnfolder]: For 1327/1327 co-relation queries the response was YES. [2021-06-11 19:19:20,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 93 events. 35/93 cut-off events. For 1327/1327 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 320 event pairs, 1 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 595. Up to 64 conditions per place. [2021-06-11 19:19:20,413 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 47 selfloop transitions, 11 changer transitions 1/63 dead transitions. [2021-06-11 19:19:20,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 63 transitions, 753 flow [2021-06-11 19:19:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:20,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2021-06-11 19:19:20,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2021-06-11 19:19:20,414 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 102 transitions. [2021-06-11 19:19:20,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 102 transitions. [2021-06-11 19:19:20,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:20,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 102 transitions. [2021-06-11 19:19:20,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:20,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:20,415 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:20,415 INFO L185 Difference]: Start difference. First operand has 81 places, 54 transitions, 453 flow. Second operand 8 states and 102 transitions. [2021-06-11 19:19:20,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 63 transitions, 753 flow [2021-06-11 19:19:20,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 63 transitions, 689 flow, removed 21 selfloop flow, removed 12 redundant places. [2021-06-11 19:19:20,420 INFO L241 Difference]: Finished difference. Result has 79 places, 58 transitions, 537 flow [2021-06-11 19:19:20,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=537, PETRI_PLACES=79, PETRI_TRANSITIONS=58} [2021-06-11 19:19:20,421 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 64 predicate places. [2021-06-11 19:19:20,421 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:20,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 58 transitions, 537 flow [2021-06-11 19:19:20,421 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 58 transitions, 537 flow [2021-06-11 19:19:20,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 58 transitions, 537 flow [2021-06-11 19:19:20,425 INFO L129 PetriNetUnfolder]: 33/87 cut-off events. [2021-06-11 19:19:20,426 INFO L130 PetriNetUnfolder]: For 1056/1066 co-relation queries the response was YES. [2021-06-11 19:19:20,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 87 events. 33/87 cut-off events. For 1056/1066 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 314 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 477. Up to 26 conditions per place. [2021-06-11 19:19:20,426 INFO L151 LiptonReduction]: Number of co-enabled transitions 40 [2021-06-11 19:19:20,430 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:20,430 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:20,430 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:20,431 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 537 flow [2021-06-11 19:19:20,431 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) [2021-06-11 19:19:20,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:20,431 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:20,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-06-11 19:19:20,641 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:20,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash -361935445, now seen corresponding path program 19 times [2021-06-11 19:19:20,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:20,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436926420] [2021-06-11 19:19:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:20,650 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:20,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:20,655 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:20,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:20,669 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:20,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:20,680 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:20,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:20,690 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:20,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436926420] [2021-06-11 19:19:20,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058683044] [2021-06-11 19:19:20,698 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:20,713 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:20,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:20,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:20,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:20,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:20,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:20,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:20,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,745 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:20,745 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:20,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:20,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:20,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:20,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,761 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.0 percent of original size 47 [2021-06-11 19:19:20,761 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.0 percent of original size [2021-06-11 19:19:20,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:20,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:20,780 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:20,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:20,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,782 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:20,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:20,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:20,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:20,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:20,801 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:20,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:20,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:20,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:20,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:20,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:20,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:20,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:20,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:20,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922851213] [2021-06-11 19:19:20,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:20,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:20,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:20,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:20,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:20,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 537 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) [2021-06-11 19:19:20,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:20,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:20,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:21,004 INFO L129 PetriNetUnfolder]: 38/103 cut-off events. [2021-06-11 19:19:21,004 INFO L130 PetriNetUnfolder]: For 1679/1681 co-relation queries the response was YES. [2021-06-11 19:19:21,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 103 events. 38/103 cut-off events. For 1679/1681 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 393 event pairs, 1 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 694. Up to 75 conditions per place. [2021-06-11 19:19:21,005 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 47 selfloop transitions, 13 changer transitions 1/65 dead transitions. [2021-06-11 19:19:21,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 65 transitions, 807 flow [2021-06-11 19:19:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2021-06-11 19:19:21,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2021-06-11 19:19:21,009 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 112 transitions. [2021-06-11 19:19:21,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 112 transitions. [2021-06-11 19:19:21,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:21,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 112 transitions. [2021-06-11 19:19:21,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2021-06-11 19:19:21,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:21,010 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:21,010 INFO L185 Difference]: Start difference. First operand has 78 places, 58 transitions, 537 flow. Second operand 9 states and 112 transitions. [2021-06-11 19:19:21,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 65 transitions, 807 flow [2021-06-11 19:19:21,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 65 transitions, 728 flow, removed 35 selfloop flow, removed 4 redundant places. [2021-06-11 19:19:21,014 INFO L241 Difference]: Finished difference. Result has 85 places, 62 transitions, 602 flow [2021-06-11 19:19:21,015 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=602, PETRI_PLACES=85, PETRI_TRANSITIONS=62} [2021-06-11 19:19:21,015 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 70 predicate places. [2021-06-11 19:19:21,015 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:21,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 62 transitions, 602 flow [2021-06-11 19:19:21,015 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 62 transitions, 602 flow [2021-06-11 19:19:21,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 62 transitions, 602 flow [2021-06-11 19:19:21,021 INFO L129 PetriNetUnfolder]: 35/98 cut-off events. [2021-06-11 19:19:21,021 INFO L130 PetriNetUnfolder]: For 1427/1427 co-relation queries the response was YES. [2021-06-11 19:19:21,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 98 events. 35/98 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 369 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 557. Up to 29 conditions per place. [2021-06-11 19:19:21,021 INFO L151 LiptonReduction]: Number of co-enabled transitions 42 [2021-06-11 19:19:21,026 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:21,027 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:21,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 19:19:21,027 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 602 flow [2021-06-11 19:19:21,027 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) [2021-06-11 19:19:21,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:21,027 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:21,232 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:21,233 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:21,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:21,233 INFO L82 PathProgramCache]: Analyzing trace with hash -476452049, now seen corresponding path program 20 times [2021-06-11 19:19:21,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:21,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604076732] [2021-06-11 19:19:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:21,253 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:21,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:21,258 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:21,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:21,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,270 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:21,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:21,282 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:21,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:21,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:21,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604076732] [2021-06-11 19:19:21,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147397249] [2021-06-11 19:19:21,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:21,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:21,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:21,319 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:21,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:21,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,356 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:21,357 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:21,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:21,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:21,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:21,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,373 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:21,373 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:21,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:21,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:21,389 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:21,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:21,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:21,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:21,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:21,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:21,411 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:21,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:21,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,413 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:21,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:21,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:21,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:21,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:21,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:21,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576715696] [2021-06-11 19:19:21,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:21,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:21,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:21,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:21,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:21,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 602 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) [2021-06-11 19:19:21,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:21,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:21,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:21,582 INFO L129 PetriNetUnfolder]: 41/119 cut-off events. [2021-06-11 19:19:21,582 INFO L130 PetriNetUnfolder]: For 2172/2172 co-relation queries the response was YES. [2021-06-11 19:19:21,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 119 events. 41/119 cut-off events. For 2172/2172 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 486 event pairs, 1 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 811. Up to 80 conditions per place. [2021-06-11 19:19:21,583 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 48 selfloop transitions, 17 changer transitions 1/70 dead transitions. [2021-06-11 19:19:21,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 70 transitions, 898 flow [2021-06-11 19:19:21,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 127 transitions. [2021-06-11 19:19:21,584 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45357142857142857 [2021-06-11 19:19:21,584 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 127 transitions. [2021-06-11 19:19:21,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 127 transitions. [2021-06-11 19:19:21,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:21,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 127 transitions. [2021-06-11 19:19:21,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:21,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:21,585 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:21,585 INFO L185 Difference]: Start difference. First operand has 84 places, 62 transitions, 602 flow. Second operand 10 states and 127 transitions. [2021-06-11 19:19:21,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 70 transitions, 898 flow [2021-06-11 19:19:21,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 70 transitions, 796 flow, removed 42 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:21,590 INFO L241 Difference]: Finished difference. Result has 90 places, 66 transitions, 663 flow [2021-06-11 19:19:21,590 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=663, PETRI_PLACES=90, PETRI_TRANSITIONS=66} [2021-06-11 19:19:21,590 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 75 predicate places. [2021-06-11 19:19:21,590 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:21,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 66 transitions, 663 flow [2021-06-11 19:19:21,591 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 66 transitions, 663 flow [2021-06-11 19:19:21,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 66 transitions, 663 flow [2021-06-11 19:19:21,597 INFO L129 PetriNetUnfolder]: 39/113 cut-off events. [2021-06-11 19:19:21,597 INFO L130 PetriNetUnfolder]: For 1738/1751 co-relation queries the response was YES. [2021-06-11 19:19:21,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 113 events. 39/113 cut-off events. For 1738/1751 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 478 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 641. Up to 30 conditions per place. [2021-06-11 19:19:21,598 INFO L151 LiptonReduction]: Number of co-enabled transitions 46 [2021-06-11 19:19:21,602 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:21,602 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:21,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 19:19:21,603 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 66 transitions, 663 flow [2021-06-11 19:19:21,603 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) [2021-06-11 19:19:21,603 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:21,603 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:21,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-06-11 19:19:21,813 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:21,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:21,813 INFO L82 PathProgramCache]: Analyzing trace with hash 299006507, now seen corresponding path program 21 times [2021-06-11 19:19:21,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:21,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808047697] [2021-06-11 19:19:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:21,823 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:21,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:21,827 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:21,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:21,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:21,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,839 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:21,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,846 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:21,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:21,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:21,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:21,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808047697] [2021-06-11 19:19:21,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541513662] [2021-06-11 19:19:21,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:21,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-11 19:19:21,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:21,945 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:21,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:21,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:21,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:21,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,992 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-06-11 19:19:21,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:21,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:21,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:21,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:21,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:21,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:21,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:22,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:22,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:22,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:22,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:22,026 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:22,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:22,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:22,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:22,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:22,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:22,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:22,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:22,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120681472] [2021-06-11 19:19:22,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:22,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:22,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:22,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:22,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:22,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 66 transitions, 663 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) [2021-06-11 19:19:22,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:22,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:22,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:22,154 INFO L129 PetriNetUnfolder]: 41/115 cut-off events. [2021-06-11 19:19:22,155 INFO L130 PetriNetUnfolder]: For 1990/1990 co-relation queries the response was YES. [2021-06-11 19:19:22,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 115 events. 41/115 cut-off events. For 1990/1990 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 453 event pairs, 1 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 770. Up to 88 conditions per place. [2021-06-11 19:19:22,156 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 55 selfloop transitions, 10 changer transitions 1/70 dead transitions. [2021-06-11 19:19:22,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 70 transitions, 876 flow [2021-06-11 19:19:22,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2021-06-11 19:19:22,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4330357142857143 [2021-06-11 19:19:22,157 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 97 transitions. [2021-06-11 19:19:22,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 97 transitions. [2021-06-11 19:19:22,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:22,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 97 transitions. [2021-06-11 19:19:22,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.125) internal successors, (97), 8 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) [2021-06-11 19:19:22,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:22,157 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:22,157 INFO L185 Difference]: Start difference. First operand has 89 places, 66 transitions, 663 flow. Second operand 8 states and 97 transitions. [2021-06-11 19:19:22,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 70 transitions, 876 flow [2021-06-11 19:19:22,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 70 transitions, 783 flow, removed 38 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:22,162 INFO L241 Difference]: Finished difference. Result has 93 places, 69 transitions, 655 flow [2021-06-11 19:19:22,163 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=655, PETRI_PLACES=93, PETRI_TRANSITIONS=69} [2021-06-11 19:19:22,163 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 78 predicate places. [2021-06-11 19:19:22,163 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:22,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 69 transitions, 655 flow [2021-06-11 19:19:22,163 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 69 transitions, 655 flow [2021-06-11 19:19:22,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 69 transitions, 655 flow [2021-06-11 19:19:22,169 INFO L129 PetriNetUnfolder]: 39/109 cut-off events. [2021-06-11 19:19:22,169 INFO L130 PetriNetUnfolder]: For 1333/1343 co-relation queries the response was YES. [2021-06-11 19:19:22,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 109 events. 39/109 cut-off events. For 1333/1343 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 442 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 580. Up to 29 conditions per place. [2021-06-11 19:19:22,170 INFO L151 LiptonReduction]: Number of co-enabled transitions 46 [2021-06-11 19:19:22,175 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:22,175 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:22,175 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 19:19:22,175 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 69 transitions, 655 flow [2021-06-11 19:19:22,175 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) [2021-06-11 19:19:22,175 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:22,176 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:22,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-06-11 19:19:22,389 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:22,389 INFO L82 PathProgramCache]: Analyzing trace with hash -362829175, now seen corresponding path program 22 times [2021-06-11 19:19:22,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:22,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608918972] [2021-06-11 19:19:22,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:22,403 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:22,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:22,409 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:22,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:22,424 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:22,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:22,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:22,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:22,448 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:22,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:22,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:22,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608918972] [2021-06-11 19:19:22,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493147478] [2021-06-11 19:19:22,456 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:22,471 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:22,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:22,471 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:22,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:22,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:22,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:22,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:22,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:22,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:22,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,511 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-06-11 19:19:22,511 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-06-11 19:19:22,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:22,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:22,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:22,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,528 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-06-11 19:19:22,528 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-06-11 19:19:22,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:22,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:22,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:22,546 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 19:19:22,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:22,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:22,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:22,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:22,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:22,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-06-11 19:19:22,581 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:22,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:22,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:22,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:22,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:22,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:22,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:22,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:22,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:22,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547783314] [2021-06-11 19:19:22,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:22,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:22,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:22,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:22,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:22,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 69 transitions, 655 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) [2021-06-11 19:19:22,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:22,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:22,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:22,762 INFO L129 PetriNetUnfolder]: 41/111 cut-off events. [2021-06-11 19:19:22,762 INFO L130 PetriNetUnfolder]: For 1638/1638 co-relation queries the response was YES. [2021-06-11 19:19:22,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 111 events. 41/111 cut-off events. For 1638/1638 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 426 event pairs, 1 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 711. Up to 84 conditions per place. [2021-06-11 19:19:22,763 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 54 selfloop transitions, 13 changer transitions 1/72 dead transitions. [2021-06-11 19:19:22,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 72 transitions, 836 flow [2021-06-11 19:19:22,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 100 transitions. [2021-06-11 19:19:22,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2021-06-11 19:19:22,764 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 100 transitions. [2021-06-11 19:19:22,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 100 transitions. [2021-06-11 19:19:22,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:22,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 100 transitions. [2021-06-11 19:19:22,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:22,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:22,765 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:22,765 INFO L185 Difference]: Start difference. First operand has 92 places, 69 transitions, 655 flow. Second operand 8 states and 100 transitions. [2021-06-11 19:19:22,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 72 transitions, 836 flow [2021-06-11 19:19:22,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 72 transitions, 766 flow, removed 27 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:22,770 INFO L241 Difference]: Finished difference. Result has 97 places, 71 transitions, 663 flow [2021-06-11 19:19:22,771 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=663, PETRI_PLACES=97, PETRI_TRANSITIONS=71} [2021-06-11 19:19:22,771 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 82 predicate places. [2021-06-11 19:19:22,771 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:22,771 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 71 transitions, 663 flow [2021-06-11 19:19:22,771 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 71 transitions, 663 flow [2021-06-11 19:19:22,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 71 transitions, 663 flow [2021-06-11 19:19:22,777 INFO L129 PetriNetUnfolder]: 39/105 cut-off events. [2021-06-11 19:19:22,777 INFO L130 PetriNetUnfolder]: For 1412/1425 co-relation queries the response was YES. [2021-06-11 19:19:22,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 105 events. 39/105 cut-off events. For 1412/1425 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 414 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 564. Up to 28 conditions per place. [2021-06-11 19:19:22,777 INFO L151 LiptonReduction]: Number of co-enabled transitions 46 [2021-06-11 19:19:22,780 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:22,780 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:22,780 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:22,780 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 71 transitions, 663 flow [2021-06-11 19:19:22,780 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) [2021-06-11 19:19:22,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:22,780 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:22,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-11 19:19:22,995 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:22,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:22,995 INFO L82 PathProgramCache]: Analyzing trace with hash 268500523, now seen corresponding path program 3 times [2021-06-11 19:19:22,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:22,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696681006] [2021-06-11 19:19:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,028 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:23,052 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-06-11 19:19:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:23,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696681006] [2021-06-11 19:19:23,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509998796] [2021-06-11 19:19:23,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:23,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:23,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:23,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2021-06-11 19:19:23,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:23,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:23,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:23,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:23,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,119 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-06-11 19:19:23,119 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-06-11 19:19:23,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,133 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:23,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:23,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:23,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:23,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:23,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:23,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:23,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:23,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-06-11 19:19:23,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416507105] [2021-06-11 19:19:23,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-11 19:19:23,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:23,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-11 19:19:23,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-06-11 19:19:23,151 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2021-06-11 19:19:23,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 71 transitions, 663 flow. Second operand has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:23,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:23,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2021-06-11 19:19:23,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:23,302 INFO L129 PetriNetUnfolder]: 42/113 cut-off events. [2021-06-11 19:19:23,302 INFO L130 PetriNetUnfolder]: For 1941/1966 co-relation queries the response was YES. [2021-06-11 19:19:23,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 113 events. 42/113 cut-off events. For 1941/1966 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 455 event pairs, 0 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 729. Up to 75 conditions per place. [2021-06-11 19:19:23,303 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 51 selfloop transitions, 10 changer transitions 2/75 dead transitions. [2021-06-11 19:19:23,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 75 transitions, 903 flow [2021-06-11 19:19:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 19:19:23,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 19:19:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 107 transitions. [2021-06-11 19:19:23,304 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5459183673469388 [2021-06-11 19:19:23,304 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 107 transitions. [2021-06-11 19:19:23,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 107 transitions. [2021-06-11 19:19:23,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:23,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 107 transitions. [2021-06-11 19:19:23,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:23,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 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) [2021-06-11 19:19:23,304 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 28.0) internal successors, (224), 8 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) [2021-06-11 19:19:23,304 INFO L185 Difference]: Start difference. First operand has 96 places, 71 transitions, 663 flow. Second operand 7 states and 107 transitions. [2021-06-11 19:19:23,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 75 transitions, 903 flow [2021-06-11 19:19:23,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 75 transitions, 803 flow, removed 39 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:23,310 INFO L241 Difference]: Finished difference. Result has 98 places, 73 transitions, 652 flow [2021-06-11 19:19:23,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=652, PETRI_PLACES=98, PETRI_TRANSITIONS=73} [2021-06-11 19:19:23,310 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 83 predicate places. [2021-06-11 19:19:23,310 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:23,310 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 73 transitions, 652 flow [2021-06-11 19:19:23,311 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 73 transitions, 652 flow [2021-06-11 19:19:23,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 73 transitions, 652 flow [2021-06-11 19:19:23,316 INFO L129 PetriNetUnfolder]: 41/109 cut-off events. [2021-06-11 19:19:23,317 INFO L130 PetriNetUnfolder]: For 1268/1277 co-relation queries the response was YES. [2021-06-11 19:19:23,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 109 events. 41/109 cut-off events. For 1268/1277 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 458 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 581. Up to 28 conditions per place. [2021-06-11 19:19:23,317 INFO L151 LiptonReduction]: Number of co-enabled transitions 46 [2021-06-11 19:19:23,319 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:23,319 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:23,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:23,320 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 73 transitions, 652 flow [2021-06-11 19:19:23,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:23,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:23,320 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:23,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-06-11 19:19:23,520 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:23,521 INFO L82 PathProgramCache]: Analyzing trace with hash -477345779, now seen corresponding path program 23 times [2021-06-11 19:19:23,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:23,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832957307] [2021-06-11 19:19:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:23,529 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:23,533 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:23,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,545 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:23,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:23,555 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:23,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:23,564 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:23,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:23,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:23,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832957307] [2021-06-11 19:19:23,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322043490] [2021-06-11 19:19:23,572 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:23,587 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:23,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:23,588 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:23,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:23,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:23,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:23,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:23,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:23,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:23,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:23,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,631 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-06-11 19:19:23,632 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 19:19:23,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:23,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:23,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:23,648 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,649 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:23,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:23,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:23,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:23,665 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:23,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:23,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:23,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:23,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:23,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:23,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:23,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:23,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675363798] [2021-06-11 19:19:23,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:23,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:23,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:23,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:23,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:23,690 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 73 transitions, 652 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) [2021-06-11 19:19:23,690 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:23,690 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:23,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:23,831 INFO L129 PetriNetUnfolder]: 43/111 cut-off events. [2021-06-11 19:19:23,831 INFO L130 PetriNetUnfolder]: For 1762/1762 co-relation queries the response was YES. [2021-06-11 19:19:23,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 111 events. 43/111 cut-off events. For 1762/1762 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 429 event pairs, 1 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 714. Up to 80 conditions per place. [2021-06-11 19:19:23,832 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 53 selfloop transitions, 19 changer transitions 1/77 dead transitions. [2021-06-11 19:19:23,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 77 transitions, 845 flow [2021-06-11 19:19:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:23,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 137 transitions. [2021-06-11 19:19:23,833 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4448051948051948 [2021-06-11 19:19:23,833 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 137 transitions. [2021-06-11 19:19:23,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 137 transitions. [2021-06-11 19:19:23,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:23,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 137 transitions. [2021-06-11 19:19:23,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:23,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:23,834 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:23,834 INFO L185 Difference]: Start difference. First operand has 97 places, 73 transitions, 652 flow. Second operand 11 states and 137 transitions. [2021-06-11 19:19:23,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 77 transitions, 845 flow [2021-06-11 19:19:23,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 77 transitions, 792 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:23,840 INFO L241 Difference]: Finished difference. Result has 105 places, 75 transitions, 690 flow [2021-06-11 19:19:23,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=690, PETRI_PLACES=105, PETRI_TRANSITIONS=75} [2021-06-11 19:19:23,840 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 90 predicate places. [2021-06-11 19:19:23,840 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:23,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 75 transitions, 690 flow [2021-06-11 19:19:23,840 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 75 transitions, 690 flow [2021-06-11 19:19:23,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 75 transitions, 690 flow [2021-06-11 19:19:23,846 INFO L129 PetriNetUnfolder]: 41/106 cut-off events. [2021-06-11 19:19:23,846 INFO L130 PetriNetUnfolder]: For 1397/1397 co-relation queries the response was YES. [2021-06-11 19:19:23,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 106 events. 41/106 cut-off events. For 1397/1397 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 426 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 601. Up to 29 conditions per place. [2021-06-11 19:19:23,847 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 19:19:23,849 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:23,849 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:23,849 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:23,849 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 75 transitions, 690 flow [2021-06-11 19:19:23,856 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) [2021-06-11 19:19:23,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:23,856 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:24,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:24,069 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:24,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:24,069 INFO L82 PathProgramCache]: Analyzing trace with hash -422914739, now seen corresponding path program 24 times [2021-06-11 19:19:24,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:24,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701498008] [2021-06-11 19:19:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:24,076 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:24,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:24,081 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:24,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:24,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:24,098 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:24,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:24,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:24,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701498008] [2021-06-11 19:19:24,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371166939] [2021-06-11 19:19:24,115 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:24,144 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:24,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:24,144 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:24,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:24,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,161 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:24,162 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:24,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,176 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:24,176 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:24,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,194 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:24,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:24,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,196 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:24,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:24,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:24,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:24,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,217 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-06-11 19:19:24,218 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:24,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:24,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:24,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:19:24,237 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-06-11 19:19:24,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 19:19:24,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:24,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:24,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:24,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:24,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:24,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:24,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383671] [2021-06-11 19:19:24,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:24,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:24,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:24,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:24,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:24,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 75 transitions, 690 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) [2021-06-11 19:19:24,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:24,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:24,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:24,401 INFO L129 PetriNetUnfolder]: 43/110 cut-off events. [2021-06-11 19:19:24,401 INFO L130 PetriNetUnfolder]: For 1686/1686 co-relation queries the response was YES. [2021-06-11 19:19:24,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 110 events. 43/110 cut-off events. For 1686/1686 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 424 event pairs, 1 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 735. Up to 85 conditions per place. [2021-06-11 19:19:24,403 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 60 selfloop transitions, 13 changer transitions 2/79 dead transitions. [2021-06-11 19:19:24,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 79 transitions, 944 flow [2021-06-11 19:19:24,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 132 transitions. [2021-06-11 19:19:24,403 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-11 19:19:24,403 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 132 transitions. [2021-06-11 19:19:24,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 132 transitions. [2021-06-11 19:19:24,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:24,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 132 transitions. [2021-06-11 19:19:24,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 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) [2021-06-11 19:19:24,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:24,404 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:24,404 INFO L185 Difference]: Start difference. First operand has 104 places, 75 transitions, 690 flow. Second operand 11 states and 132 transitions. [2021-06-11 19:19:24,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 79 transitions, 944 flow [2021-06-11 19:19:24,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 79 transitions, 821 flow, removed 46 selfloop flow, removed 8 redundant places. [2021-06-11 19:19:24,410 INFO L241 Difference]: Finished difference. Result has 110 places, 77 transitions, 679 flow [2021-06-11 19:19:24,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=679, PETRI_PLACES=110, PETRI_TRANSITIONS=77} [2021-06-11 19:19:24,410 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 95 predicate places. [2021-06-11 19:19:24,411 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:24,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 77 transitions, 679 flow [2021-06-11 19:19:24,411 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 77 transitions, 679 flow [2021-06-11 19:19:24,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 77 transitions, 679 flow [2021-06-11 19:19:24,417 INFO L129 PetriNetUnfolder]: 41/104 cut-off events. [2021-06-11 19:19:24,417 INFO L130 PetriNetUnfolder]: For 1491/1491 co-relation queries the response was YES. [2021-06-11 19:19:24,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 104 events. 41/104 cut-off events. For 1491/1491 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 428 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 570. Up to 24 conditions per place. [2021-06-11 19:19:24,418 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 19:19:24,420 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:24,420 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:24,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:24,420 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 77 transitions, 679 flow [2021-06-11 19:19:24,420 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) [2021-06-11 19:19:24,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:24,420 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:24,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:24,635 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:24,636 INFO L82 PathProgramCache]: Analyzing trace with hash 383017127, now seen corresponding path program 25 times [2021-06-11 19:19:24,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:24,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282392307] [2021-06-11 19:19:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:24,642 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:24,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:24,647 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-06-11 19:19:24,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:24,653 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:24,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:24,661 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:24,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:24,673 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:24,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:24,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:24,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282392307] [2021-06-11 19:19:24,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505348851] [2021-06-11 19:19:24,692 INFO L93 rtionOrderModulation]: Changing assertion order to 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) [2021-06-11 19:19:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:24,710 WARN L261 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-11 19:19:24,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:24,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:24,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:24,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,727 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:24,728 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:24,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:24,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:24,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:24,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,756 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 47 [2021-06-11 19:19:24,756 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:24,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:24,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:24,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:19:24,775 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:24,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:24,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:24,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:24,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-11 19:19:24,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 19:19:24,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 19:19:24,799 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:24,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:24,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,801 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:24,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:24,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:24,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:24,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:24,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:24,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2021-06-11 19:19:24,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631630472] [2021-06-11 19:19:24,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-11 19:19:24,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:24,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-11 19:19:24,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-11 19:19:24,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:24,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 77 transitions, 679 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) [2021-06-11 19:19:24,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:24,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:24,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:24,960 INFO L129 PetriNetUnfolder]: 43/105 cut-off events. [2021-06-11 19:19:24,960 INFO L130 PetriNetUnfolder]: For 1600/1600 co-relation queries the response was YES. [2021-06-11 19:19:24,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 105 events. 43/105 cut-off events. For 1600/1600 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 401 event pairs, 1 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 674. Up to 82 conditions per place. [2021-06-11 19:19:24,961 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 61 selfloop transitions, 14 changer transitions 1/80 dead transitions. [2021-06-11 19:19:24,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 80 transitions, 880 flow [2021-06-11 19:19:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 100 transitions. [2021-06-11 19:19:24,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2021-06-11 19:19:24,962 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 100 transitions. [2021-06-11 19:19:24,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 100 transitions. [2021-06-11 19:19:24,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:24,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 100 transitions. [2021-06-11 19:19:24,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:24,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:24,963 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:24,963 INFO L185 Difference]: Start difference. First operand has 108 places, 77 transitions, 679 flow. Second operand 8 states and 100 transitions. [2021-06-11 19:19:24,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 80 transitions, 880 flow [2021-06-11 19:19:24,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 80 transitions, 826 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-06-11 19:19:24,968 INFO L241 Difference]: Finished difference. Result has 110 places, 79 transitions, 711 flow [2021-06-11 19:19:24,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=711, PETRI_PLACES=110, PETRI_TRANSITIONS=79} [2021-06-11 19:19:24,968 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 95 predicate places. [2021-06-11 19:19:24,968 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:24,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 79 transitions, 711 flow [2021-06-11 19:19:24,968 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 79 transitions, 711 flow [2021-06-11 19:19:24,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 79 transitions, 711 flow [2021-06-11 19:19:24,974 INFO L129 PetriNetUnfolder]: 41/102 cut-off events. [2021-06-11 19:19:24,974 INFO L130 PetriNetUnfolder]: For 1486/1486 co-relation queries the response was YES. [2021-06-11 19:19:24,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 102 events. 41/102 cut-off events. For 1486/1486 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 395 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 567. Up to 23 conditions per place. [2021-06-11 19:19:24,975 INFO L151 LiptonReduction]: Number of co-enabled transitions 46 [2021-06-11 19:19:24,977 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:24,977 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:24,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 19:19:24,978 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 79 transitions, 711 flow [2021-06-11 19:19:24,978 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) [2021-06-11 19:19:24,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:24,978 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:25,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:25,193 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash -456346649, now seen corresponding path program 26 times [2021-06-11 19:19:25,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:25,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625464451] [2021-06-11 19:19:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:25,201 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:25,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:25,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:25,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:25,225 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:25,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:25,237 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:25,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:25,248 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:25,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:25,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625464451] [2021-06-11 19:19:25,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050160932] [2021-06-11 19:19:25,257 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 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 [2021-06-11 19:19:25,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:25,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:25,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:25,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:25,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:25,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:25,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,295 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-06-11 19:19:25,296 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-11 19:19:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:25,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:25,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,308 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size 31 [2021-06-11 19:19:25,308 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-06-11 19:19:25,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:25,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:25,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:25,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,322 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:25,323 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:25,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:25,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:25,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:25,357 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:25,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:25,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:25,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:25,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:19:25,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:25,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:25,381 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:25,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:25,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:25,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:25,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:25,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,386 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:25,387 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:25,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:25,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:25,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:25,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:25,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:25,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541110168] [2021-06-11 19:19:25,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:25,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:25,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:25,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:25,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:25,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 79 transitions, 711 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:25,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:25,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:25,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:25,611 INFO L129 PetriNetUnfolder]: 46/116 cut-off events. [2021-06-11 19:19:25,611 INFO L130 PetriNetUnfolder]: For 2361/2361 co-relation queries the response was YES. [2021-06-11 19:19:25,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 116 events. 46/116 cut-off events. For 2361/2361 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 463 event pairs, 1 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 803. Up to 85 conditions per place. [2021-06-11 19:19:25,612 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 65 selfloop transitions, 16 changer transitions 1/86 dead transitions. [2021-06-11 19:19:25,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 86 transitions, 1057 flow [2021-06-11 19:19:25,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2021-06-11 19:19:25,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2021-06-11 19:19:25,613 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 115 transitions. [2021-06-11 19:19:25,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 115 transitions. [2021-06-11 19:19:25,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:25,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 115 transitions. [2021-06-11 19:19:25,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 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) [2021-06-11 19:19:25,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:25,614 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:25,614 INFO L185 Difference]: Start difference. First operand has 109 places, 79 transitions, 711 flow. Second operand 9 states and 115 transitions. [2021-06-11 19:19:25,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 86 transitions, 1057 flow [2021-06-11 19:19:25,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 86 transitions, 972 flow, removed 33 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:25,621 INFO L241 Difference]: Finished difference. Result has 115 places, 83 transitions, 799 flow [2021-06-11 19:19:25,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=799, PETRI_PLACES=115, PETRI_TRANSITIONS=83} [2021-06-11 19:19:25,621 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 100 predicate places. [2021-06-11 19:19:25,621 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:25,621 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 83 transitions, 799 flow [2021-06-11 19:19:25,621 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 83 transitions, 799 flow [2021-06-11 19:19:25,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 83 transitions, 799 flow [2021-06-11 19:19:25,628 INFO L129 PetriNetUnfolder]: 44/113 cut-off events. [2021-06-11 19:19:25,628 INFO L130 PetriNetUnfolder]: For 1963/1963 co-relation queries the response was YES. [2021-06-11 19:19:25,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 113 events. 44/113 cut-off events. For 1963/1963 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 458 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 654. Up to 27 conditions per place. [2021-06-11 19:19:25,629 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 19:19:25,631 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:25,631 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:25,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 19:19:25,632 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 83 transitions, 799 flow [2021-06-11 19:19:25,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:25,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:25,632 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:25,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-06-11 19:19:25,832 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash -570863253, now seen corresponding path program 27 times [2021-06-11 19:19:25,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:25,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304201388] [2021-06-11 19:19:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:25,849 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:25,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:25,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:25,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:25,872 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:25,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:25,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:25,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:25,895 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:25,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:25,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304201388] [2021-06-11 19:19:25,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559135917] [2021-06-11 19:19:25,905 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 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 [2021-06-11 19:19:25,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:25,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:25,927 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:25,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:25,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:25,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:25,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:25,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:25,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,962 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:25,962 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:25,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:25,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:25,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:25,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,976 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:25,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:25,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:25,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:25,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:25,991 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:25,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:25,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:25,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:25,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:25,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:25,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:25,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:26,013 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:26,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:26,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,014 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:26,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:26,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:26,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,039 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:26,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:26,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:26,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484197483] [2021-06-11 19:19:26,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:26,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:26,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:26,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:26,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:26,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 83 transitions, 799 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:26,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:26,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:26,335 INFO L129 PetriNetUnfolder]: 49/139 cut-off events. [2021-06-11 19:19:26,335 INFO L130 PetriNetUnfolder]: For 3169/3171 co-relation queries the response was YES. [2021-06-11 19:19:26,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 139 events. 49/139 cut-off events. For 3169/3171 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 594 event pairs, 1 based on Foata normal form. 3/141 useless extension candidates. Maximal degree in co-relation 1015. Up to 94 conditions per place. [2021-06-11 19:19:26,336 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 74 selfloop transitions, 20 changer transitions 1/99 dead transitions. [2021-06-11 19:19:26,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 99 transitions, 1371 flow [2021-06-11 19:19:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 165 transitions. [2021-06-11 19:19:26,337 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4532967032967033 [2021-06-11 19:19:26,337 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 165 transitions. [2021-06-11 19:19:26,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 165 transitions. [2021-06-11 19:19:26,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:26,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 165 transitions. [2021-06-11 19:19:26,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,338 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,338 INFO L185 Difference]: Start difference. First operand has 114 places, 83 transitions, 799 flow. Second operand 13 states and 165 transitions. [2021-06-11 19:19:26,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 99 transitions, 1371 flow [2021-06-11 19:19:26,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 99 transitions, 1254 flow, removed 51 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:26,347 INFO L241 Difference]: Finished difference. Result has 124 places, 90 transitions, 962 flow [2021-06-11 19:19:26,347 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=962, PETRI_PLACES=124, PETRI_TRANSITIONS=90} [2021-06-11 19:19:26,347 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 109 predicate places. [2021-06-11 19:19:26,347 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:26,348 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 90 transitions, 962 flow [2021-06-11 19:19:26,348 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 90 transitions, 962 flow [2021-06-11 19:19:26,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 90 transitions, 962 flow [2021-06-11 19:19:26,356 INFO L129 PetriNetUnfolder]: 47/136 cut-off events. [2021-06-11 19:19:26,356 INFO L130 PetriNetUnfolder]: For 2602/2602 co-relation queries the response was YES. [2021-06-11 19:19:26,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 136 events. 47/136 cut-off events. For 2602/2602 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 569 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 831. Up to 37 conditions per place. [2021-06-11 19:19:26,357 INFO L151 LiptonReduction]: Number of co-enabled transitions 56 [2021-06-11 19:19:26,360 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:26,360 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:26,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:26,360 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 962 flow [2021-06-11 19:19:26,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:26,360 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:26,575 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:26,575 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:26,575 INFO L82 PathProgramCache]: Analyzing trace with hash -466724719, now seen corresponding path program 28 times [2021-06-11 19:19:26,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:26,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550704177] [2021-06-11 19:19:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:26,595 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:26,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:26,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:26,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:26,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:26,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:26,632 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:26,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:26,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:26,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550704177] [2021-06-11 19:19:26,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947417075] [2021-06-11 19:19:26,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:26,681 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:26,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:26,682 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:26,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:26,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,693 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-06-11 19:19:26,693 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:26,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,705 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-06-11 19:19:26,706 INFO L142 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size [2021-06-11 19:19:26,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:26,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:26,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:26,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,718 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size 30 [2021-06-11 19:19:26,719 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size [2021-06-11 19:19:26,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:26,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:26,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:26,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,734 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:26,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,750 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:26,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:26,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:26,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:26,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:26,768 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:26,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:26,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:26,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:26,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:26,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:26,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:26,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:26,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736122620] [2021-06-11 19:19:26,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:26,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:26,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:26,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:26,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:26,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 90 transitions, 962 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:26,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:26,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:26,974 INFO L129 PetriNetUnfolder]: 52/150 cut-off events. [2021-06-11 19:19:26,974 INFO L130 PetriNetUnfolder]: For 3722/3722 co-relation queries the response was YES. [2021-06-11 19:19:26,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 150 events. 52/150 cut-off events. For 3722/3722 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 680 event pairs, 1 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 1118. Up to 100 conditions per place. [2021-06-11 19:19:26,976 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 60 selfloop transitions, 32 changer transitions 1/97 dead transitions. [2021-06-11 19:19:26,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 97 transitions, 1350 flow [2021-06-11 19:19:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:26,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions. [2021-06-11 19:19:26,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2021-06-11 19:19:26,977 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 153 transitions. [2021-06-11 19:19:26,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 153 transitions. [2021-06-11 19:19:26,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:26,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 153 transitions. [2021-06-11 19:19:26,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,978 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:26,978 INFO L185 Difference]: Start difference. First operand has 123 places, 90 transitions, 962 flow. Second operand 12 states and 153 transitions. [2021-06-11 19:19:26,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 97 transitions, 1350 flow [2021-06-11 19:19:26,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 97 transitions, 1187 flow, removed 73 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:26,988 INFO L241 Difference]: Finished difference. Result has 131 places, 94 transitions, 1016 flow [2021-06-11 19:19:26,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1016, PETRI_PLACES=131, PETRI_TRANSITIONS=94} [2021-06-11 19:19:26,988 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 116 predicate places. [2021-06-11 19:19:26,988 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:26,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 94 transitions, 1016 flow [2021-06-11 19:19:26,989 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 94 transitions, 1016 flow [2021-06-11 19:19:26,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 94 transitions, 1016 flow [2021-06-11 19:19:26,998 INFO L129 PetriNetUnfolder]: 50/147 cut-off events. [2021-06-11 19:19:26,998 INFO L130 PetriNetUnfolder]: For 3028/3028 co-relation queries the response was YES. [2021-06-11 19:19:26,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 147 events. 50/147 cut-off events. For 3028/3028 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 650 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 907. Up to 41 conditions per place. [2021-06-11 19:19:26,999 INFO L151 LiptonReduction]: Number of co-enabled transitions 58 [2021-06-11 19:19:27,001 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:27,002 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:27,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:27,002 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 94 transitions, 1016 flow [2021-06-11 19:19:27,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:27,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:27,002 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:27,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-11 19:19:27,217 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1090989239, now seen corresponding path program 29 times [2021-06-11 19:19:27,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:27,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665042800] [2021-06-11 19:19:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:27,224 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:27,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:27,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:27,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:27,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:27,257 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:27,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:27,267 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:27,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:27,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665042800] [2021-06-11 19:19:27,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770594501] [2021-06-11 19:19:27,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:27,295 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:27,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:27,295 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:27,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:27,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:27,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,317 INFO L147 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size 16 [2021-06-11 19:19:27,317 INFO L142 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-06-11 19:19:27,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:27,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,331 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:27,331 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:27,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,345 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:27,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:27,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,346 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:27,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:27,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:27,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:27,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:27,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:27,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:27,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:27,388 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:27,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:27,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:27,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:27,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:27,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:27,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:27,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:27,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900104741] [2021-06-11 19:19:27,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:27,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:27,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:27,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:27,413 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:27,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 94 transitions, 1016 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:27,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:27,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:27,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:27,675 INFO L129 PetriNetUnfolder]: 52/148 cut-off events. [2021-06-11 19:19:27,675 INFO L130 PetriNetUnfolder]: For 3382/3382 co-relation queries the response was YES. [2021-06-11 19:19:27,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 148 events. 52/148 cut-off events. For 3382/3382 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 654 event pairs, 1 based on Foata normal form. 4/151 useless extension candidates. Maximal degree in co-relation 1092. Up to 106 conditions per place. [2021-06-11 19:19:27,676 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 74 selfloop transitions, 11 changer transitions 8/97 dead transitions. [2021-06-11 19:19:27,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 97 transitions, 1304 flow [2021-06-11 19:19:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 134 transitions. [2021-06-11 19:19:27,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43506493506493504 [2021-06-11 19:19:27,677 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 134 transitions. [2021-06-11 19:19:27,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 134 transitions. [2021-06-11 19:19:27,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:27,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 134 transitions. [2021-06-11 19:19:27,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 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) [2021-06-11 19:19:27,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:27,678 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:27,678 INFO L185 Difference]: Start difference. First operand has 130 places, 94 transitions, 1016 flow. Second operand 11 states and 134 transitions. [2021-06-11 19:19:27,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 97 transitions, 1304 flow [2021-06-11 19:19:27,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 97 transitions, 1142 flow, removed 57 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:27,689 INFO L241 Difference]: Finished difference. Result has 135 places, 89 transitions, 818 flow [2021-06-11 19:19:27,689 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=818, PETRI_PLACES=135, PETRI_TRANSITIONS=89} [2021-06-11 19:19:27,689 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 120 predicate places. [2021-06-11 19:19:27,689 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:27,689 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 89 transitions, 818 flow [2021-06-11 19:19:27,689 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 89 transitions, 818 flow [2021-06-11 19:19:27,690 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 89 transitions, 818 flow [2021-06-11 19:19:27,697 INFO L129 PetriNetUnfolder]: 49/132 cut-off events. [2021-06-11 19:19:27,697 INFO L130 PetriNetUnfolder]: For 2288/2288 co-relation queries the response was YES. [2021-06-11 19:19:27,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 132 events. 49/132 cut-off events. For 2288/2288 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 558 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 734. Up to 33 conditions per place. [2021-06-11 19:19:27,698 INFO L151 LiptonReduction]: Number of co-enabled transitions 50 [2021-06-11 19:19:27,701 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:27,701 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:27,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 19:19:27,701 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 89 transitions, 818 flow [2021-06-11 19:19:27,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:27,701 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:27,701 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:27,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:27,916 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:27,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash 407015961, now seen corresponding path program 30 times [2021-06-11 19:19:27,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:27,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457710875] [2021-06-11 19:19:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:27,929 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:27,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:27,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:27,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:27,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:27,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:27,962 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:27,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:27,974 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:27,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:27,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:27,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:27,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:27,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457710875] [2021-06-11 19:19:27,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535173265] [2021-06-11 19:19:27,993 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:28,009 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:28,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:28,010 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:28,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:28,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:28,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:28,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:28,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:28,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:28,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:28,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:28,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:28,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:28,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,046 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-06-11 19:19:28,046 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:28,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:28,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:28,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:28,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,076 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:28,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:28,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:28,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:28,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:28,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:28,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:28,094 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:28,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:28,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:28,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:28,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:28,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:28,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:28,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105476252] [2021-06-11 19:19:28,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:28,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:28,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:28,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:28,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 89 transitions, 818 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:28,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:28,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:28,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:28,478 INFO L129 PetriNetUnfolder]: 54/156 cut-off events. [2021-06-11 19:19:28,478 INFO L130 PetriNetUnfolder]: For 4035/4035 co-relation queries the response was YES. [2021-06-11 19:19:28,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 156 events. 54/156 cut-off events. For 4035/4035 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 708 event pairs, 1 based on Foata normal form. 1/156 useless extension candidates. Maximal degree in co-relation 1130. Up to 100 conditions per place. [2021-06-11 19:19:28,479 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 62 selfloop transitions, 35 changer transitions 1/102 dead transitions. [2021-06-11 19:19:28,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 102 transitions, 1394 flow [2021-06-11 19:19:28,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-11 19:19:28,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-11 19:19:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 222 transitions. [2021-06-11 19:19:28,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2021-06-11 19:19:28,480 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 222 transitions. [2021-06-11 19:19:28,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 222 transitions. [2021-06-11 19:19:28,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:28,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 222 transitions. [2021-06-11 19:19:28,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:28,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 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) [2021-06-11 19:19:28,481 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 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) [2021-06-11 19:19:28,481 INFO L185 Difference]: Start difference. First operand has 126 places, 89 transitions, 818 flow. Second operand 18 states and 222 transitions. [2021-06-11 19:19:28,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 102 transitions, 1394 flow [2021-06-11 19:19:28,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 102 transitions, 1336 flow, removed 15 selfloop flow, removed 12 redundant places. [2021-06-11 19:19:28,492 INFO L241 Difference]: Finished difference. Result has 133 places, 97 transitions, 1148 flow [2021-06-11 19:19:28,492 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1148, PETRI_PLACES=133, PETRI_TRANSITIONS=97} [2021-06-11 19:19:28,492 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 118 predicate places. [2021-06-11 19:19:28,492 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:28,492 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 97 transitions, 1148 flow [2021-06-11 19:19:28,492 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 97 transitions, 1148 flow [2021-06-11 19:19:28,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 132 places, 97 transitions, 1148 flow [2021-06-11 19:19:28,501 INFO L129 PetriNetUnfolder]: 52/153 cut-off events. [2021-06-11 19:19:28,502 INFO L130 PetriNetUnfolder]: For 3570/3570 co-relation queries the response was YES. [2021-06-11 19:19:28,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 153 events. 52/153 cut-off events. For 3570/3570 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 706 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 965. Up to 40 conditions per place. [2021-06-11 19:19:28,503 INFO L151 LiptonReduction]: Number of co-enabled transitions 52 [2021-06-11 19:19:28,506 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:28,506 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:28,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:28,506 INFO L480 AbstractCegarLoop]: Abstraction has has 132 places, 97 transitions, 1148 flow [2021-06-11 19:19:28,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:28,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:28,507 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:28,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-06-11 19:19:28,721 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:28,721 INFO L82 PathProgramCache]: Analyzing trace with hash -581327813, now seen corresponding path program 31 times [2021-06-11 19:19:28,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:28,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527110300] [2021-06-11 19:19:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:28,730 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:28,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:28,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:28,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:28,753 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:28,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:28,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:28,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:28,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:28,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527110300] [2021-06-11 19:19:28,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336593684] [2021-06-11 19:19:28,794 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-06-11 19:19:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:28,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:28,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:28,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:28,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:28,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,833 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-06-11 19:19:28,834 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 19:19:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,846 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size 31 [2021-06-11 19:19:28,846 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-06-11 19:19:28,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:28,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:28,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,860 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:28,860 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:28,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:28,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:28,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:28,877 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:28,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:28,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,878 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:28,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:28,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:28,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,906 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:28,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:28,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,907 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:28,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:28,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:28,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,910 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:28,910 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:28,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:28,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:28,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:28,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:28,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:28,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317610138] [2021-06-11 19:19:28,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:28,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:28,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:28,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 97 transitions, 1148 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:28,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:28,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:28,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:29,120 INFO L129 PetriNetUnfolder]: 57/171 cut-off events. [2021-06-11 19:19:29,120 INFO L130 PetriNetUnfolder]: For 5152/5154 co-relation queries the response was YES. [2021-06-11 19:19:29,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 171 events. 57/171 cut-off events. For 5152/5154 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 824 event pairs, 2 based on Foata normal form. 3/173 useless extension candidates. Maximal degree in co-relation 1323. Up to 120 conditions per place. [2021-06-11 19:19:29,122 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 82 selfloop transitions, 18 changer transitions 1/105 dead transitions. [2021-06-11 19:19:29,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 105 transitions, 1576 flow [2021-06-11 19:19:29,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:29,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2021-06-11 19:19:29,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2021-06-11 19:19:29,123 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 116 transitions. [2021-06-11 19:19:29,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 116 transitions. [2021-06-11 19:19:29,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:29,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 116 transitions. [2021-06-11 19:19:29,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 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) [2021-06-11 19:19:29,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,123 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,123 INFO L185 Difference]: Start difference. First operand has 132 places, 97 transitions, 1148 flow. Second operand 9 states and 116 transitions. [2021-06-11 19:19:29,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 105 transitions, 1576 flow [2021-06-11 19:19:29,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 105 transitions, 1210 flow, removed 144 selfloop flow, removed 19 redundant places. [2021-06-11 19:19:29,136 INFO L241 Difference]: Finished difference. Result has 124 places, 101 transitions, 987 flow [2021-06-11 19:19:29,136 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=987, PETRI_PLACES=124, PETRI_TRANSITIONS=101} [2021-06-11 19:19:29,136 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 109 predicate places. [2021-06-11 19:19:29,136 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:29,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 101 transitions, 987 flow [2021-06-11 19:19:29,136 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 101 transitions, 987 flow [2021-06-11 19:19:29,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 101 transitions, 987 flow [2021-06-11 19:19:29,146 INFO L129 PetriNetUnfolder]: 55/168 cut-off events. [2021-06-11 19:19:29,146 INFO L130 PetriNetUnfolder]: For 3462/3462 co-relation queries the response was YES. [2021-06-11 19:19:29,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 168 events. 55/168 cut-off events. For 3462/3462 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 811 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 944. Up to 44 conditions per place. [2021-06-11 19:19:29,147 INFO L151 LiptonReduction]: Number of co-enabled transitions 56 [2021-06-11 19:19:29,150 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:29,150 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:29,150 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:29,150 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 101 transitions, 987 flow [2021-06-11 19:19:29,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:29,150 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:29,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-06-11 19:19:29,351 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:29,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:29,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1216195055, now seen corresponding path program 32 times [2021-06-11 19:19:29,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:29,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379666850] [2021-06-11 19:19:29,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:29,358 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:29,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:29,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:29,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:29,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:29,388 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:29,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:29,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:29,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:29,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379666850] [2021-06-11 19:19:29,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514155678] [2021-06-11 19:19:29,407 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 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 [2021-06-11 19:19:29,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:29,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:29,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:29,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:29,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,430 INFO L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-06-11 19:19:29,430 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-06-11 19:19:29,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:29,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:29,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:29,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,442 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:29,443 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:29,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,458 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-06-11 19:19:29,459 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-06-11 19:19:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:29,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:29,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:29,473 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:29,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:19:29,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,474 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:29,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:29,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:29,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:29,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:29,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,491 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 46 [2021-06-11 19:19:29,492 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:29,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,512 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:29,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:29,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:29,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:29,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:29,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,516 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:29,517 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:29,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:29,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:29,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:29,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:29,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324008575] [2021-06-11 19:19:29,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:29,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:29,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:29,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:29,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:29,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 101 transitions, 987 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:29,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:29,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:29,688 INFO L129 PetriNetUnfolder]: 57/168 cut-off events. [2021-06-11 19:19:29,688 INFO L130 PetriNetUnfolder]: For 3745/3745 co-relation queries the response was YES. [2021-06-11 19:19:29,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 168 events. 57/168 cut-off events. For 3745/3745 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 802 event pairs, 1 based on Foata normal form. 1/167 useless extension candidates. Maximal degree in co-relation 1110. Up to 126 conditions per place. [2021-06-11 19:19:29,689 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 83 selfloop transitions, 15 changer transitions 1/103 dead transitions. [2021-06-11 19:19:29,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 103 transitions, 1258 flow [2021-06-11 19:19:29,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:29,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2021-06-11 19:19:29,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2021-06-11 19:19:29,690 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 111 transitions. [2021-06-11 19:19:29,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 111 transitions. [2021-06-11 19:19:29,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:29,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 111 transitions. [2021-06-11 19:19:29,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 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) [2021-06-11 19:19:29,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,691 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,691 INFO L185 Difference]: Start difference. First operand has 123 places, 101 transitions, 987 flow. Second operand 9 states and 111 transitions. [2021-06-11 19:19:29,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 103 transitions, 1258 flow [2021-06-11 19:19:29,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 103 transitions, 1121 flow, removed 60 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:29,701 INFO L241 Difference]: Finished difference. Result has 128 places, 102 transitions, 923 flow [2021-06-11 19:19:29,701 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=118, 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=9, PETRI_FLOW=923, PETRI_PLACES=128, PETRI_TRANSITIONS=102} [2021-06-11 19:19:29,701 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 113 predicate places. [2021-06-11 19:19:29,701 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:29,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 102 transitions, 923 flow [2021-06-11 19:19:29,701 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 102 transitions, 923 flow [2021-06-11 19:19:29,702 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 102 transitions, 923 flow [2021-06-11 19:19:29,710 INFO L129 PetriNetUnfolder]: 55/165 cut-off events. [2021-06-11 19:19:29,710 INFO L130 PetriNetUnfolder]: For 2771/2771 co-relation queries the response was YES. [2021-06-11 19:19:29,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 165 events. 55/165 cut-off events. For 2771/2771 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 759 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 855. Up to 42 conditions per place. [2021-06-11 19:19:29,711 INFO L151 LiptonReduction]: Number of co-enabled transitions 56 [2021-06-11 19:19:29,714 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:29,714 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:29,714 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:29,714 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 102 transitions, 923 flow [2021-06-11 19:19:29,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:29,714 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:29,714 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:29,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-11 19:19:29,917 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:29,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1315815825, now seen corresponding path program 33 times [2021-06-11 19:19:29,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:29,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298568056] [2021-06-11 19:19:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:29,924 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:29,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:29,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:29,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:29,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:29,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:29,951 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:29,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:29,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:29,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:29,972 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:29,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:29,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298568056] [2021-06-11 19:19:29,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760952461] [2021-06-11 19:19:29,982 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 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 [2021-06-11 19:19:29,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:29,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:30,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:30,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:30,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,024 INFO L147 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size 18 [2021-06-11 19:19:30,024 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-06-11 19:19:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:30,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:30,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:30,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,036 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size 25 [2021-06-11 19:19:30,037 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:30,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:30,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:30,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:30,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,051 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:30,051 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:30,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,069 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:30,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:30,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:30,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,092 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:30,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:30,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:30,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:30,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,101 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:30,101 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:30,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:30,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:30,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:30,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:30,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:30,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827725217] [2021-06-11 19:19:30,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:30,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:30,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:30,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:30,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:30,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 102 transitions, 923 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:30,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:30,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:30,293 INFO L129 PetriNetUnfolder]: 60/183 cut-off events. [2021-06-11 19:19:30,293 INFO L130 PetriNetUnfolder]: For 4303/4303 co-relation queries the response was YES. [2021-06-11 19:19:30,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 183 events. 60/183 cut-off events. For 4303/4303 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 913 event pairs, 2 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 1226. Up to 130 conditions per place. [2021-06-11 19:19:30,294 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 88 selfloop transitions, 17 changer transitions 1/110 dead transitions. [2021-06-11 19:19:30,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 110 transitions, 1361 flow [2021-06-11 19:19:30,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2021-06-11 19:19:30,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2021-06-11 19:19:30,296 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 116 transitions. [2021-06-11 19:19:30,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 116 transitions. [2021-06-11 19:19:30,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:30,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 116 transitions. [2021-06-11 19:19:30,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 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) [2021-06-11 19:19:30,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,296 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,296 INFO L185 Difference]: Start difference. First operand has 127 places, 102 transitions, 923 flow. Second operand 9 states and 116 transitions. [2021-06-11 19:19:30,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 110 transitions, 1361 flow [2021-06-11 19:19:30,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 110 transitions, 1311 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:30,307 INFO L241 Difference]: Finished difference. Result has 131 places, 106 transitions, 1066 flow [2021-06-11 19:19:30,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1066, PETRI_PLACES=131, PETRI_TRANSITIONS=106} [2021-06-11 19:19:30,308 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 116 predicate places. [2021-06-11 19:19:30,308 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:30,308 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 106 transitions, 1066 flow [2021-06-11 19:19:30,308 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 106 transitions, 1066 flow [2021-06-11 19:19:30,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 106 transitions, 1066 flow [2021-06-11 19:19:30,318 INFO L129 PetriNetUnfolder]: 58/180 cut-off events. [2021-06-11 19:19:30,318 INFO L130 PetriNetUnfolder]: For 4202/4202 co-relation queries the response was YES. [2021-06-11 19:19:30,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 180 events. 58/180 cut-off events. For 4202/4202 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 915 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 1050. Up to 48 conditions per place. [2021-06-11 19:19:30,320 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 19:19:30,322 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:30,322 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:30,323 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:30,323 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 1066 flow [2021-06-11 19:19:30,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,323 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:30,323 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:30,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-11 19:19:30,538 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:30,538 INFO L82 PathProgramCache]: Analyzing trace with hash -582135053, now seen corresponding path program 34 times [2021-06-11 19:19:30,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:30,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589754148] [2021-06-11 19:19:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:30,548 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:30,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:30,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:30,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:30,572 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:30,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:30,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:30,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:30,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:30,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:30,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589754148] [2021-06-11 19:19:30,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799664759] [2021-06-11 19:19:30,603 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:30,618 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:30,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:30,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:30,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:30,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,627 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:30,627 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:30,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:30,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,638 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-06-11 19:19:30,638 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 19:19:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:30,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:30,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,651 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size 37 [2021-06-11 19:19:30,652 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size [2021-06-11 19:19:30,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:30,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:30,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:30,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,677 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 46 [2021-06-11 19:19:30,678 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:30,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:30,697 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:30,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:30,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:30,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:30,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:19:30,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:30,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:30,725 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:30,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:30,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,733 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:30,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:30,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:30,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,736 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:30,737 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:30,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:30,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:30,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:30,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:30,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:30,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224708043] [2021-06-11 19:19:30,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:30,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:30,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:30,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:30,774 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:30,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 106 transitions, 1066 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:30,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:30,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:30,965 INFO L129 PetriNetUnfolder]: 60/180 cut-off events. [2021-06-11 19:19:30,965 INFO L130 PetriNetUnfolder]: For 4509/4509 co-relation queries the response was YES. [2021-06-11 19:19:30,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 180 events. 60/180 cut-off events. For 4509/4509 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 900 event pairs, 2 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 1229. Up to 131 conditions per place. [2021-06-11 19:19:30,966 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 84 selfloop transitions, 20 changer transitions 1/109 dead transitions. [2021-06-11 19:19:30,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 109 transitions, 1335 flow [2021-06-11 19:19:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:30,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 114 transitions. [2021-06-11 19:19:30,967 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-06-11 19:19:30,967 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 114 transitions. [2021-06-11 19:19:30,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 114 transitions. [2021-06-11 19:19:30,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:30,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 114 transitions. [2021-06-11 19:19:30,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.666666666666666) internal successors, (114), 9 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,968 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,968 INFO L185 Difference]: Start difference. First operand has 130 places, 106 transitions, 1066 flow. Second operand 9 states and 114 transitions. [2021-06-11 19:19:30,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 109 transitions, 1335 flow [2021-06-11 19:19:30,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 109 transitions, 1206 flow, removed 56 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:30,979 INFO L241 Difference]: Finished difference. Result has 136 places, 108 transitions, 1047 flow [2021-06-11 19:19:30,980 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1047, PETRI_PLACES=136, PETRI_TRANSITIONS=108} [2021-06-11 19:19:30,980 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 121 predicate places. [2021-06-11 19:19:30,980 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:30,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 108 transitions, 1047 flow [2021-06-11 19:19:30,980 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 108 transitions, 1047 flow [2021-06-11 19:19:30,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 108 transitions, 1047 flow [2021-06-11 19:19:30,990 INFO L129 PetriNetUnfolder]: 58/176 cut-off events. [2021-06-11 19:19:30,990 INFO L130 PetriNetUnfolder]: For 3558/3558 co-relation queries the response was YES. [2021-06-11 19:19:30,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 176 events. 58/176 cut-off events. For 3558/3558 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 871 event pairs, 1 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 981. Up to 47 conditions per place. [2021-06-11 19:19:30,992 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 19:19:30,994 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:30,994 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:30,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:30,995 INFO L480 AbstractCegarLoop]: Abstraction has has 135 places, 108 transitions, 1047 flow [2021-06-11 19:19:30,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:30,995 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:30,995 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:31,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:31,195 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:31,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:31,196 INFO L82 PathProgramCache]: Analyzing trace with hash 291605627, now seen corresponding path program 35 times [2021-06-11 19:19:31,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:31,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065865317] [2021-06-11 19:19:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:31,206 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:31,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:31,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:31,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:31,229 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:31,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:31,242 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:31,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,252 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:31,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:31,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065865317] [2021-06-11 19:19:31,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405979704] [2021-06-11 19:19:31,261 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:31,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:31,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:31,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:31,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:31,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:31,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,284 INFO L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-06-11 19:19:31,285 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-06-11 19:19:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:31,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:31,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:31,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:31,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:31,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:31,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:31,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,308 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size 25 [2021-06-11 19:19:31,308 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:31,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:31,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:31,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:31,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,322 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.8 percent of original size 46 [2021-06-11 19:19:31,322 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.8 percent of original size [2021-06-11 19:19:31,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:31,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:31,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:31,339 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:31,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:31,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,341 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:31,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,362 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:31,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:31,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:31,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:31,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,365 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:31,366 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:31,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:31,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:31,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:31,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:31,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:31,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458062275] [2021-06-11 19:19:31,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:31,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:31,400 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:31,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 108 transitions, 1047 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:31,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:31,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:31,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:31,588 INFO L129 PetriNetUnfolder]: 60/176 cut-off events. [2021-06-11 19:19:31,588 INFO L130 PetriNetUnfolder]: For 4017/4017 co-relation queries the response was YES. [2021-06-11 19:19:31,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 176 events. 60/176 cut-off events. For 4017/4017 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 841 event pairs, 2 based on Foata normal form. 1/176 useless extension candidates. Maximal degree in co-relation 1160. Up to 128 conditions per place. [2021-06-11 19:19:31,590 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 89 selfloop transitions, 18 changer transitions 1/112 dead transitions. [2021-06-11 19:19:31,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 112 transitions, 1328 flow [2021-06-11 19:19:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2021-06-11 19:19:31,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2021-06-11 19:19:31,590 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 115 transitions. [2021-06-11 19:19:31,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 115 transitions. [2021-06-11 19:19:31,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:31,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 115 transitions. [2021-06-11 19:19:31,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 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) [2021-06-11 19:19:31,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:31,592 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:31,592 INFO L185 Difference]: Start difference. First operand has 135 places, 108 transitions, 1047 flow. Second operand 9 states and 115 transitions. [2021-06-11 19:19:31,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 112 transitions, 1328 flow [2021-06-11 19:19:31,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 112 transitions, 1223 flow, removed 38 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:31,605 INFO L241 Difference]: Finished difference. Result has 140 places, 110 transitions, 1049 flow [2021-06-11 19:19:31,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1049, PETRI_PLACES=140, PETRI_TRANSITIONS=110} [2021-06-11 19:19:31,605 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 125 predicate places. [2021-06-11 19:19:31,605 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:31,605 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 110 transitions, 1049 flow [2021-06-11 19:19:31,606 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 110 transitions, 1049 flow [2021-06-11 19:19:31,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 110 transitions, 1049 flow [2021-06-11 19:19:31,616 INFO L129 PetriNetUnfolder]: 58/172 cut-off events. [2021-06-11 19:19:31,616 INFO L130 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2021-06-11 19:19:31,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 172 events. 58/172 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 838 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 943. Up to 43 conditions per place. [2021-06-11 19:19:31,617 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 19:19:31,620 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:31,620 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:31,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:31,620 INFO L480 AbstractCegarLoop]: Abstraction has has 139 places, 110 transitions, 1049 flow [2021-06-11 19:19:31,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:31,620 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:31,620 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:31,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-06-11 19:19:31,821 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:31,821 INFO L82 PathProgramCache]: Analyzing trace with hash -467618449, now seen corresponding path program 36 times [2021-06-11 19:19:31,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:31,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257598673] [2021-06-11 19:19:31,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:31,837 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:31,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:31,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:31,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:31,861 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:31,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:31,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:31,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:31,883 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:31,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:31,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257598673] [2021-06-11 19:19:31,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050919395] [2021-06-11 19:19:31,892 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:31,908 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:31,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:31,909 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:31,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:31,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:31,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,917 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:31,917 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:31,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,929 INFO L147 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size 23 [2021-06-11 19:19:31,929 INFO L142 QuantifierPusher]: treesize reduction 8, result has 74.2 percent of original size [2021-06-11 19:19:31,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:31,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:31,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:31,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,942 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size 30 [2021-06-11 19:19:31,942 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.4 percent of original size [2021-06-11 19:19:31,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:31,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:31,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,957 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:31,957 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:31,973 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:31,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:31,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:31,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:31,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:31,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:31,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:31,994 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:31,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:31,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:31,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:31,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:31,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:31,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:31,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:32,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:32,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:32,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331986896] [2021-06-11 19:19:32,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:32,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:32,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:32,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:32,020 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:32,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 110 transitions, 1049 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:32,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:32,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:32,213 INFO L129 PetriNetUnfolder]: 60/177 cut-off events. [2021-06-11 19:19:32,213 INFO L130 PetriNetUnfolder]: For 3557/3557 co-relation queries the response was YES. [2021-06-11 19:19:32,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 177 events. 60/177 cut-off events. For 3557/3557 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 872 event pairs, 2 based on Foata normal form. 1/177 useless extension candidates. Maximal degree in co-relation 1133. Up to 120 conditions per place. [2021-06-11 19:19:32,215 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 77 selfloop transitions, 32 changer transitions 1/114 dead transitions. [2021-06-11 19:19:32,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 114 transitions, 1330 flow [2021-06-11 19:19:32,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:32,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions. [2021-06-11 19:19:32,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2021-06-11 19:19:32,216 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 153 transitions. [2021-06-11 19:19:32,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 153 transitions. [2021-06-11 19:19:32,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:32,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 153 transitions. [2021-06-11 19:19:32,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,217 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,217 INFO L185 Difference]: Start difference. First operand has 139 places, 110 transitions, 1049 flow. Second operand 12 states and 153 transitions. [2021-06-11 19:19:32,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 114 transitions, 1330 flow [2021-06-11 19:19:32,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 114 transitions, 1228 flow, removed 37 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:32,230 INFO L241 Difference]: Finished difference. Result has 147 places, 112 transitions, 1078 flow [2021-06-11 19:19:32,230 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1078, PETRI_PLACES=147, PETRI_TRANSITIONS=112} [2021-06-11 19:19:32,230 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 132 predicate places. [2021-06-11 19:19:32,230 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:32,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 112 transitions, 1078 flow [2021-06-11 19:19:32,230 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 112 transitions, 1078 flow [2021-06-11 19:19:32,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 112 transitions, 1078 flow [2021-06-11 19:19:32,240 INFO L129 PetriNetUnfolder]: 58/173 cut-off events. [2021-06-11 19:19:32,240 INFO L130 PetriNetUnfolder]: For 2872/2872 co-relation queries the response was YES. [2021-06-11 19:19:32,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 173 events. 58/173 cut-off events. For 2872/2872 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 835 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 913. Up to 38 conditions per place. [2021-06-11 19:19:32,241 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 19:19:32,244 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:32,244 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:32,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:32,245 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 112 transitions, 1078 flow [2021-06-11 19:19:32,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,245 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:32,245 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:32,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:32,445 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:32,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:32,445 INFO L82 PathProgramCache]: Analyzing trace with hash 323005341, now seen corresponding path program 37 times [2021-06-11 19:19:32,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:32,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527343378] [2021-06-11 19:19:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:32,452 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:32,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:32,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:32,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:32,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:32,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:32,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:32,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:32,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:32,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527343378] [2021-06-11 19:19:32,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700239947] [2021-06-11 19:19:32,505 INFO L93 rtionOrderModulation]: Changing assertion order to 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 [2021-06-11 19:19:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:32,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:32,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:32,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:32,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:32,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:32,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:32,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:32,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,551 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:32,552 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:32,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:32,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:32,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:32,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,568 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size 32 [2021-06-11 19:19:32,568 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-06-11 19:19:32,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:32,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:32,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:32,585 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:32,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:32,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:32,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:32,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:32,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:32,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:32,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,605 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-06-11 19:19:32,605 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size [2021-06-11 19:19:32,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:32,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:32,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:32,628 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:32,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:32,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,630 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:32,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:32,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:32,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:32,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:32,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:32,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:32,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335794253] [2021-06-11 19:19:32,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:32,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:32,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:32,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:32,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:32,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 112 transitions, 1078 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:32,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:32,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:32,986 INFO L129 PetriNetUnfolder]: 60/176 cut-off events. [2021-06-11 19:19:32,986 INFO L130 PetriNetUnfolder]: For 3434/3434 co-relation queries the response was YES. [2021-06-11 19:19:32,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 176 events. 60/176 cut-off events. For 3434/3434 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 853 event pairs, 2 based on Foata normal form. 3/178 useless extension candidates. Maximal degree in co-relation 1128. Up to 123 conditions per place. [2021-06-11 19:19:32,987 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 83 selfloop transitions, 15 changer transitions 12/114 dead transitions. [2021-06-11 19:19:32,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 114 transitions, 1372 flow [2021-06-11 19:19:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 19:19:32,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 19:19:32,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 181 transitions. [2021-06-11 19:19:32,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.430952380952381 [2021-06-11 19:19:32,988 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 181 transitions. [2021-06-11 19:19:32,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 181 transitions. [2021-06-11 19:19:32,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:32,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 181 transitions. [2021-06-11 19:19:32,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 12.066666666666666) internal successors, (181), 15 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,989 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:32,989 INFO L185 Difference]: Start difference. First operand has 146 places, 112 transitions, 1078 flow. Second operand 15 states and 181 transitions. [2021-06-11 19:19:32,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 114 transitions, 1372 flow [2021-06-11 19:19:32,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 114 transitions, 1250 flow, removed 33 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:33,000 INFO L241 Difference]: Finished difference. Result has 154 places, 102 transitions, 941 flow [2021-06-11 19:19:33,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=941, PETRI_PLACES=154, PETRI_TRANSITIONS=102} [2021-06-11 19:19:33,000 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 139 predicate places. [2021-06-11 19:19:33,000 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:33,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 102 transitions, 941 flow [2021-06-11 19:19:33,000 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 102 transitions, 941 flow [2021-06-11 19:19:33,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 102 transitions, 941 flow [2021-06-11 19:19:33,009 INFO L129 PetriNetUnfolder]: 56/157 cut-off events. [2021-06-11 19:19:33,010 INFO L130 PetriNetUnfolder]: For 2592/2592 co-relation queries the response was YES. [2021-06-11 19:19:33,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 157 events. 56/157 cut-off events. For 2592/2592 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 734 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 830. Up to 32 conditions per place. [2021-06-11 19:19:33,011 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 19:19:33,013 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:33,013 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:33,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:33,014 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 102 transitions, 941 flow [2021-06-11 19:19:33,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:33,014 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:33,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:33,228 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:33,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:33,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1241100331, now seen corresponding path program 38 times [2021-06-11 19:19:33,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:33,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553148227] [2021-06-11 19:19:33,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:33,237 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:33,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:33,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:33,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:33,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,269 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:33,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:33,280 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:33,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:33,288 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:33,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553148227] [2021-06-11 19:19:33,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106907111] [2021-06-11 19:19:33,288 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 [2021-06-11 19:19:33,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:33,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:33,304 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:33,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:33,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,310 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:33,311 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:33,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:33,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:33,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:33,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,323 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-06-11 19:19:33,323 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-06-11 19:19:33,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:33,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,339 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.2 percent of original size 32 [2021-06-11 19:19:33,339 INFO L142 QuantifierPusher]: treesize reduction 6, result has 84.2 percent of original size [2021-06-11 19:19:33,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:33,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:33,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:33,354 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:33,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:33,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:33,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:33,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:33,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:33,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:33,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,374 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-06-11 19:19:33,375 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:33,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:33,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:33,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:33,396 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:33,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:33,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:33,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:33,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:33,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:33,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:33,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:33,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114716629] [2021-06-11 19:19:33,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:33,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:33,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:33,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:33,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:33,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 102 transitions, 941 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:33,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:33,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:33,606 INFO L129 PetriNetUnfolder]: 58/161 cut-off events. [2021-06-11 19:19:33,606 INFO L130 PetriNetUnfolder]: For 3169/3169 co-relation queries the response was YES. [2021-06-11 19:19:33,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 161 events. 58/161 cut-off events. For 3169/3169 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 743 event pairs, 2 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 1033. Up to 118 conditions per place. [2021-06-11 19:19:33,607 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 80 selfloop transitions, 20 changer transitions 2/106 dead transitions. [2021-06-11 19:19:33,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 106 transitions, 1234 flow [2021-06-11 19:19:33,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 146 transitions. [2021-06-11 19:19:33,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2021-06-11 19:19:33,608 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 146 transitions. [2021-06-11 19:19:33,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 146 transitions. [2021-06-11 19:19:33,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:33,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 146 transitions. [2021-06-11 19:19:33,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,609 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,609 INFO L185 Difference]: Start difference. First operand has 141 places, 102 transitions, 941 flow. Second operand 12 states and 146 transitions. [2021-06-11 19:19:33,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 106 transitions, 1234 flow [2021-06-11 19:19:33,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 106 transitions, 1176 flow, removed 9 selfloop flow, removed 13 redundant places. [2021-06-11 19:19:33,620 INFO L241 Difference]: Finished difference. Result has 143 places, 104 transitions, 984 flow [2021-06-11 19:19:33,620 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=984, PETRI_PLACES=143, PETRI_TRANSITIONS=104} [2021-06-11 19:19:33,620 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 128 predicate places. [2021-06-11 19:19:33,620 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:33,620 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 104 transitions, 984 flow [2021-06-11 19:19:33,620 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 104 transitions, 984 flow [2021-06-11 19:19:33,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 104 transitions, 984 flow [2021-06-11 19:19:33,629 INFO L129 PetriNetUnfolder]: 56/154 cut-off events. [2021-06-11 19:19:33,630 INFO L130 PetriNetUnfolder]: For 2783/2783 co-relation queries the response was YES. [2021-06-11 19:19:33,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 154 events. 56/154 cut-off events. For 2783/2783 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 707 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 842. Up to 33 conditions per place. [2021-06-11 19:19:33,631 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 19:19:33,633 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:33,633 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:33,634 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:33,634 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 104 transitions, 984 flow [2021-06-11 19:19:33,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:33,635 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:33,635 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:33,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-06-11 19:19:33,849 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:33,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:33,849 INFO L82 PathProgramCache]: Analyzing trace with hash 406122231, now seen corresponding path program 39 times [2021-06-11 19:19:33,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:33,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880423080] [2021-06-11 19:19:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:33,859 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:33,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:33,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:33,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:33,882 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:33,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:33,893 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:33,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:33,903 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:33,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:33,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:33,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880423080] [2021-06-11 19:19:33,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045128160] [2021-06-11 19:19:33,914 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 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 [2021-06-11 19:19:33,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-11 19:19:33,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:33,930 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:33,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:33,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,939 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-06-11 19:19:33,939 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:33,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,951 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size 30 [2021-06-11 19:19:33,952 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-06-11 19:19:33,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:33,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:33,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:33,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,966 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-06-11 19:19:33,966 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:33,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:33,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:33,996 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:33,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:33,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:33,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:33,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:33,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:33,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:33,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:34,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:34,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:34,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,019 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:34,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:34,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:34,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:34,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:34,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:34,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259273972] [2021-06-11 19:19:34,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:34,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:34,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:34,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:34,043 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:34,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 104 transitions, 984 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:34,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:34,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:34,250 INFO L129 PetriNetUnfolder]: 58/154 cut-off events. [2021-06-11 19:19:34,250 INFO L130 PetriNetUnfolder]: For 3047/3047 co-relation queries the response was YES. [2021-06-11 19:19:34,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 154 events. 58/154 cut-off events. For 3047/3047 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 693 event pairs, 2 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 1003. Up to 114 conditions per place. [2021-06-11 19:19:34,252 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 77 selfloop transitions, 25 changer transitions 1/107 dead transitions. [2021-06-11 19:19:34,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 107 transitions, 1243 flow [2021-06-11 19:19:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:34,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 162 transitions. [2021-06-11 19:19:34,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44505494505494503 [2021-06-11 19:19:34,255 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 162 transitions. [2021-06-11 19:19:34,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 162 transitions. [2021-06-11 19:19:34,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:34,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 162 transitions. [2021-06-11 19:19:34,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,256 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,256 INFO L185 Difference]: Start difference. First operand has 141 places, 104 transitions, 984 flow. Second operand 13 states and 162 transitions. [2021-06-11 19:19:34,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 107 transitions, 1243 flow [2021-06-11 19:19:34,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 107 transitions, 1157 flow, removed 25 selfloop flow, removed 10 redundant places. [2021-06-11 19:19:34,267 INFO L241 Difference]: Finished difference. Result has 146 places, 106 transitions, 1009 flow [2021-06-11 19:19:34,267 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1009, PETRI_PLACES=146, PETRI_TRANSITIONS=106} [2021-06-11 19:19:34,267 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 131 predicate places. [2021-06-11 19:19:34,267 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:34,267 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 106 transitions, 1009 flow [2021-06-11 19:19:34,267 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 106 transitions, 1009 flow [2021-06-11 19:19:34,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 145 places, 106 transitions, 1009 flow [2021-06-11 19:19:34,276 INFO L129 PetriNetUnfolder]: 56/150 cut-off events. [2021-06-11 19:19:34,277 INFO L130 PetriNetUnfolder]: For 2647/2647 co-relation queries the response was YES. [2021-06-11 19:19:34,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 150 events. 56/150 cut-off events. For 2647/2647 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 680 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 826. Up to 32 conditions per place. [2021-06-11 19:19:34,278 INFO L151 LiptonReduction]: Number of co-enabled transitions 62 [2021-06-11 19:19:34,280 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:34,281 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:34,281 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:34,281 INFO L480 AbstractCegarLoop]: Abstraction has has 145 places, 106 transitions, 1009 flow [2021-06-11 19:19:34,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:34,281 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:34,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-06-11 19:19:34,489 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:34,489 INFO L82 PathProgramCache]: Analyzing trace with hash 347910617, now seen corresponding path program 40 times [2021-06-11 19:19:34,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:34,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392494636] [2021-06-11 19:19:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:34,499 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:34,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:34,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:34,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:34,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:34,531 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-06-11 19:19:34,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:34,542 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-11 19:19:34,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:34,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392494636] [2021-06-11 19:19:34,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858471755] [2021-06-11 19:19:34,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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) [2021-06-11 19:19:34,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:34,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:34,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:34,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:34,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:34,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:34,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:34,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:34,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:34,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:34,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,589 INFO L147 QuantifierPusher]: treesize reduction -2, result has 112.5 percent of original size 18 [2021-06-11 19:19:34,589 INFO L142 QuantifierPusher]: treesize reduction -2, result has 112.5 percent of original size [2021-06-11 19:19:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:34,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:34,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:34,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,603 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size 25 [2021-06-11 19:19:34,603 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:34,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:34,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:34,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:34,618 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:34,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:34,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,619 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:34,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:34,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:34,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:34,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:34,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,637 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:34,637 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,660 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:34,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:34,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:34,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:34,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:34,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,664 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:34,664 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:34,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:34,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:34,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:34,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:34,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:34,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083883815] [2021-06-11 19:19:34,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:34,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:34,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:34,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:34,700 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:34,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 106 transitions, 1009 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:34,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:34,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:34,824 INFO L129 PetriNetUnfolder]: 58/150 cut-off events. [2021-06-11 19:19:34,824 INFO L130 PetriNetUnfolder]: For 2946/2946 co-relation queries the response was YES. [2021-06-11 19:19:34,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 150 events. 58/150 cut-off events. For 2946/2946 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 666 event pairs, 2 based on Foata normal form. 1/150 useless extension candidates. Maximal degree in co-relation 990. Up to 120 conditions per place. [2021-06-11 19:19:34,825 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 91 selfloop transitions, 12 changer transitions 1/108 dead transitions. [2021-06-11 19:19:34,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 108 transitions, 1230 flow [2021-06-11 19:19:34,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:34,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:34,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 109 transitions. [2021-06-11 19:19:34,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43253968253968256 [2021-06-11 19:19:34,832 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 109 transitions. [2021-06-11 19:19:34,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 109 transitions. [2021-06-11 19:19:34,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:34,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 109 transitions. [2021-06-11 19:19:34,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,833 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,833 INFO L185 Difference]: Start difference. First operand has 145 places, 106 transitions, 1009 flow. Second operand 9 states and 109 transitions. [2021-06-11 19:19:34,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 108 transitions, 1230 flow [2021-06-11 19:19:34,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 108 transitions, 1117 flow, removed 35 selfloop flow, removed 10 redundant places. [2021-06-11 19:19:34,843 INFO L241 Difference]: Finished difference. Result has 145 places, 107 transitions, 933 flow [2021-06-11 19:19:34,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=933, PETRI_PLACES=145, PETRI_TRANSITIONS=107} [2021-06-11 19:19:34,843 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 130 predicate places. [2021-06-11 19:19:34,843 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:34,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 107 transitions, 933 flow [2021-06-11 19:19:34,844 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 107 transitions, 933 flow [2021-06-11 19:19:34,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 144 places, 107 transitions, 933 flow [2021-06-11 19:19:34,852 INFO L129 PetriNetUnfolder]: 56/147 cut-off events. [2021-06-11 19:19:34,852 INFO L130 PetriNetUnfolder]: For 2334/2334 co-relation queries the response was YES. [2021-06-11 19:19:34,853 INFO L84 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 147 events. 56/147 cut-off events. For 2334/2334 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 673 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 775. Up to 28 conditions per place. [2021-06-11 19:19:34,853 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 19:19:34,856 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:34,856 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:34,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:34,856 INFO L480 AbstractCegarLoop]: Abstraction has has 144 places, 107 transitions, 933 flow [2021-06-11 19:19:34,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:34,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:34,856 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:35,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-06-11 19:19:35,061 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:35,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:35,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1151074803, now seen corresponding path program 41 times [2021-06-11 19:19:35,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:35,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352911267] [2021-06-11 19:19:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:35,069 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:35,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:35,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:35,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:35,091 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:35,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:35,104 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:35,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:35,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:35,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:35,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352911267] [2021-06-11 19:19:35,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017389571] [2021-06-11 19:19:35,125 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:35,141 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:35,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:35,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:35,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:35,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:35,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,149 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:35,149 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:35,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:35,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:35,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:35,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,160 INFO L147 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size 18 [2021-06-11 19:19:35,160 INFO L142 QuantifierPusher]: treesize reduction 1, result has 94.7 percent of original size [2021-06-11 19:19:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:35,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:35,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:35,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,176 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size 25 [2021-06-11 19:19:35,176 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:35,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:35,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:35,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,190 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:35,190 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:35,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:35,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:35,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:35,207 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:35,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:35,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,209 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:35,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:35,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:35,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,231 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:35,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:35,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:35,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:35,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,237 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:35,238 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:35,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:35,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:35,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:35,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:35,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133172831] [2021-06-11 19:19:35,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:35,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:35,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:35,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:35,273 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:35,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 107 transitions, 933 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:35,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:35,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:35,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:35,442 INFO L129 PetriNetUnfolder]: 58/152 cut-off events. [2021-06-11 19:19:35,442 INFO L130 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2021-06-11 19:19:35,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 152 events. 58/152 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 680 event pairs, 2 based on Foata normal form. 1/151 useless extension candidates. Maximal degree in co-relation 948. Up to 116 conditions per place. [2021-06-11 19:19:35,444 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 91 selfloop transitions, 15 changer transitions 1/111 dead transitions. [2021-06-11 19:19:35,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 111 transitions, 1206 flow [2021-06-11 19:19:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:35,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:35,444 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:35,444 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:35,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:35,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:35,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:35,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:35,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:35,445 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:35,445 INFO L185 Difference]: Start difference. First operand has 144 places, 107 transitions, 933 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:35,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 111 transitions, 1206 flow [2021-06-11 19:19:35,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 111 transitions, 1178 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:35,455 INFO L241 Difference]: Finished difference. Result has 148 places, 109 transitions, 1000 flow [2021-06-11 19:19:35,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1000, PETRI_PLACES=148, PETRI_TRANSITIONS=109} [2021-06-11 19:19:35,455 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 133 predicate places. [2021-06-11 19:19:35,455 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:35,455 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 109 transitions, 1000 flow [2021-06-11 19:19:35,455 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 109 transitions, 1000 flow [2021-06-11 19:19:35,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 109 transitions, 1000 flow [2021-06-11 19:19:35,464 INFO L129 PetriNetUnfolder]: 56/148 cut-off events. [2021-06-11 19:19:35,464 INFO L130 PetriNetUnfolder]: For 2440/2440 co-relation queries the response was YES. [2021-06-11 19:19:35,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 148 events. 56/148 cut-off events. For 2440/2440 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 674 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 796. Up to 29 conditions per place. [2021-06-11 19:19:35,465 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 19:19:35,468 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:35,468 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:35,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 19:19:35,468 INFO L480 AbstractCegarLoop]: Abstraction has has 147 places, 109 transitions, 1000 flow [2021-06-11 19:19:35,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:35,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:35,468 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:35,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:35,673 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:35,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash -571756983, now seen corresponding path program 42 times [2021-06-11 19:19:35,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:35,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710627773] [2021-06-11 19:19:35,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:35,694 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:35,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:35,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:35,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:35,719 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:35,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:35,731 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:35,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:35,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:35,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:35,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710627773] [2021-06-11 19:19:35,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041529853] [2021-06-11 19:19:35,751 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:35,767 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-11 19:19:35,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:35,768 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:35,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:35,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:35,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,774 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:35,774 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:35,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:35,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,790 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-06-11 19:19:35,790 INFO L142 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size [2021-06-11 19:19:35,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:35,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:35,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:35,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,804 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size 32 [2021-06-11 19:19:35,812 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.1 percent of original size [2021-06-11 19:19:35,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:35,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:35,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:35,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,828 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-06-11 19:19:35,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size [2021-06-11 19:19:35,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:35,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:35,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:35,846 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 19:19:35,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:35,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,848 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:35,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:35,848 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size 23 [2021-06-11 19:19:35,849 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-06-11 19:19:35,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:35,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:35,865 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:35,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:35,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:35,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:35,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:35,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:35,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:35,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:35,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:35,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702771007] [2021-06-11 19:19:35,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:35,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:35,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:35,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:35,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:35,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 109 transitions, 1000 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:35,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:35,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:35,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:36,126 INFO L129 PetriNetUnfolder]: 58/148 cut-off events. [2021-06-11 19:19:36,126 INFO L130 PetriNetUnfolder]: For 2743/2745 co-relation queries the response was YES. [2021-06-11 19:19:36,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 148 events. 58/148 cut-off events. For 2743/2745 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 652 event pairs, 2 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 960. Up to 117 conditions per place. [2021-06-11 19:19:36,128 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 91 selfloop transitions, 16 changer transitions 1/112 dead transitions. [2021-06-11 19:19:36,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 112 transitions, 1273 flow [2021-06-11 19:19:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2021-06-11 19:19:36,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4392857142857143 [2021-06-11 19:19:36,129 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 123 transitions. [2021-06-11 19:19:36,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 123 transitions. [2021-06-11 19:19:36,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:36,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 123 transitions. [2021-06-11 19:19:36,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.3) internal successors, (123), 10 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) [2021-06-11 19:19:36,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,129 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,129 INFO L185 Difference]: Start difference. First operand has 147 places, 109 transitions, 1000 flow. Second operand 10 states and 123 transitions. [2021-06-11 19:19:36,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 112 transitions, 1273 flow [2021-06-11 19:19:36,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 112 transitions, 1183 flow, removed 34 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:36,140 INFO L241 Difference]: Finished difference. Result has 153 places, 111 transitions, 1006 flow [2021-06-11 19:19:36,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1006, PETRI_PLACES=153, PETRI_TRANSITIONS=111} [2021-06-11 19:19:36,140 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 138 predicate places. [2021-06-11 19:19:36,140 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:36,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 111 transitions, 1006 flow [2021-06-11 19:19:36,141 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 111 transitions, 1006 flow [2021-06-11 19:19:36,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 111 transitions, 1006 flow [2021-06-11 19:19:36,149 INFO L129 PetriNetUnfolder]: 56/144 cut-off events. [2021-06-11 19:19:36,149 INFO L130 PetriNetUnfolder]: For 2229/2229 co-relation queries the response was YES. [2021-06-11 19:19:36,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 144 events. 56/144 cut-off events. For 2229/2229 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 643 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 765. Up to 27 conditions per place. [2021-06-11 19:19:36,151 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 19:19:36,153 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:36,154 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:36,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:36,154 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 111 transitions, 1006 flow [2021-06-11 19:19:36,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:36,154 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:36,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-06-11 19:19:36,354 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:36,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:36,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1326193895, now seen corresponding path program 43 times [2021-06-11 19:19:36,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:36,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314311462] [2021-06-11 19:19:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:36,362 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:36,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:36,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:36,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:36,385 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:36,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:36,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:36,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:36,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314311462] [2021-06-11 19:19:36,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142961738] [2021-06-11 19:19:36,421 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:36,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:36,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,446 INFO L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-06-11 19:19:36,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-06-11 19:19:36,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,457 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-06-11 19:19:36,457 INFO L142 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size [2021-06-11 19:19:36,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:36,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:36,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:36,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,469 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-06-11 19:19:36,469 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:36,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:36,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:36,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:36,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,502 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:36,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:36,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:36,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:36,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:36,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:36,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:36,519 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:36,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:36,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:36,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:36,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:36,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:36,550 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:36,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:36,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:36,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622472722] [2021-06-11 19:19:36,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:36,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:36,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:36,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:36,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 111 transitions, 1006 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:36,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:36,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:36,702 INFO L129 PetriNetUnfolder]: 61/163 cut-off events. [2021-06-11 19:19:36,702 INFO L130 PetriNetUnfolder]: For 3982/3982 co-relation queries the response was YES. [2021-06-11 19:19:36,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 163 events. 61/163 cut-off events. For 3982/3982 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 745 event pairs, 1 based on Foata normal form. 1/162 useless extension candidates. Maximal degree in co-relation 1135. Up to 122 conditions per place. [2021-06-11 19:19:36,703 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 101 selfloop transitions, 14 changer transitions 1/120 dead transitions. [2021-06-11 19:19:36,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 120 transitions, 1512 flow [2021-06-11 19:19:36,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2021-06-11 19:19:36,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2021-06-11 19:19:36,705 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 115 transitions. [2021-06-11 19:19:36,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 115 transitions. [2021-06-11 19:19:36,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:36,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 115 transitions. [2021-06-11 19:19:36,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 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) [2021-06-11 19:19:36,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,705 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,705 INFO L185 Difference]: Start difference. First operand has 152 places, 111 transitions, 1006 flow. Second operand 9 states and 115 transitions. [2021-06-11 19:19:36,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 120 transitions, 1512 flow [2021-06-11 19:19:36,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 120 transitions, 1409 flow, removed 39 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:36,718 INFO L241 Difference]: Finished difference. Result has 156 places, 115 transitions, 1101 flow [2021-06-11 19:19:36,718 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1101, PETRI_PLACES=156, PETRI_TRANSITIONS=115} [2021-06-11 19:19:36,718 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 141 predicate places. [2021-06-11 19:19:36,718 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:36,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 115 transitions, 1101 flow [2021-06-11 19:19:36,718 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 115 transitions, 1101 flow [2021-06-11 19:19:36,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 115 transitions, 1101 flow [2021-06-11 19:19:36,728 INFO L129 PetriNetUnfolder]: 59/159 cut-off events. [2021-06-11 19:19:36,728 INFO L130 PetriNetUnfolder]: For 3362/3362 co-relation queries the response was YES. [2021-06-11 19:19:36,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 159 events. 59/159 cut-off events. For 3362/3362 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 726 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 928. Up to 34 conditions per place. [2021-06-11 19:19:36,730 INFO L151 LiptonReduction]: Number of co-enabled transitions 64 [2021-06-11 19:19:36,733 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:36,733 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:36,733 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:36,733 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 115 transitions, 1101 flow [2021-06-11 19:19:36,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:36,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:36,733 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:36,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-06-11 19:19:36,937 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:36,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:36,937 INFO L82 PathProgramCache]: Analyzing trace with hash -269562991, now seen corresponding path program 44 times [2021-06-11 19:19:36,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:36,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001269106] [2021-06-11 19:19:36,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:36,946 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:36,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:36,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:36,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:36,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:36,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:36,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:36,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:36,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:37,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:37,017 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:37,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001269106] [2021-06-11 19:19:37,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559120709] [2021-06-11 19:19:37,018 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 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 [2021-06-11 19:19:37,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:37,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:37,042 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:37,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:37,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,062 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-06-11 19:19:37,062 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-11 19:19:37,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,093 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-06-11 19:19:37,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:37,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:37,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:37,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,114 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-06-11 19:19:37,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-06-11 19:19:37,115 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size 42 [2021-06-11 19:19:37,115 INFO L142 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size [2021-06-11 19:19:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:37,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:37,134 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:37,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:37,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,136 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:37,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 19:19:37,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:37,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:37,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:37,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165247320] [2021-06-11 19:19:37,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:37,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:37,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:37,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:37,167 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:37,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 115 transitions, 1101 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,167 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:37,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:37,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:37,316 INFO L129 PetriNetUnfolder]: 61/163 cut-off events. [2021-06-11 19:19:37,316 INFO L130 PetriNetUnfolder]: For 3854/3854 co-relation queries the response was YES. [2021-06-11 19:19:37,317 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 163 events. 61/163 cut-off events. For 3854/3854 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 747 event pairs, 1 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 1144. Up to 127 conditions per place. [2021-06-11 19:19:37,318 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 101 selfloop transitions, 14 changer transitions 2/121 dead transitions. [2021-06-11 19:19:37,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 121 transitions, 1545 flow [2021-06-11 19:19:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:37,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 133 transitions. [2021-06-11 19:19:37,319 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4318181818181818 [2021-06-11 19:19:37,319 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 133 transitions. [2021-06-11 19:19:37,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 133 transitions. [2021-06-11 19:19:37,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:37,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 133 transitions. [2021-06-11 19:19:37,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:37,320 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:37,320 INFO L185 Difference]: Start difference. First operand has 155 places, 115 transitions, 1101 flow. Second operand 11 states and 133 transitions. [2021-06-11 19:19:37,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 121 transitions, 1545 flow [2021-06-11 19:19:37,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 121 transitions, 1391 flow, removed 70 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:37,333 INFO L241 Difference]: Finished difference. Result has 165 places, 119 transitions, 1123 flow [2021-06-11 19:19:37,333 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1123, PETRI_PLACES=165, PETRI_TRANSITIONS=119} [2021-06-11 19:19:37,333 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 150 predicate places. [2021-06-11 19:19:37,333 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:37,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 119 transitions, 1123 flow [2021-06-11 19:19:37,334 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 119 transitions, 1123 flow [2021-06-11 19:19:37,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 163 places, 119 transitions, 1123 flow [2021-06-11 19:19:37,344 INFO L129 PetriNetUnfolder]: 59/157 cut-off events. [2021-06-11 19:19:37,344 INFO L130 PetriNetUnfolder]: For 2713/2713 co-relation queries the response was YES. [2021-06-11 19:19:37,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 157 events. 59/157 cut-off events. For 2713/2713 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 730 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 855. Up to 28 conditions per place. [2021-06-11 19:19:37,345 INFO L151 LiptonReduction]: Number of co-enabled transitions 68 [2021-06-11 19:19:37,348 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:37,348 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:37,348 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:37,348 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 119 transitions, 1123 flow [2021-06-11 19:19:37,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,348 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:37,348 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:37,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:37,552 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:37,552 INFO L82 PathProgramCache]: Analyzing trace with hash -325273335, now seen corresponding path program 45 times [2021-06-11 19:19:37,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:37,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260130068] [2021-06-11 19:19:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:37,559 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:37,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:37,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:37,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:37,584 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:37,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:37,597 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:37,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:37,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260130068] [2021-06-11 19:19:37,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905856752] [2021-06-11 19:19:37,620 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 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 [2021-06-11 19:19:37,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:37,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:37,637 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:37,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:37,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:37,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,643 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:37,643 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:37,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:37,701 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:37,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:37,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:37,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:37,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:37,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:37,722 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:37,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:37,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,723 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:37,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:37,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:37,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:37,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:37,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:37,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959570789] [2021-06-11 19:19:37,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:37,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:37,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:37,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:37,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:37,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 119 transitions, 1123 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:37,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:37,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:37,874 INFO L129 PetriNetUnfolder]: 61/158 cut-off events. [2021-06-11 19:19:37,874 INFO L130 PetriNetUnfolder]: For 3215/3215 co-relation queries the response was YES. [2021-06-11 19:19:37,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 158 events. 61/158 cut-off events. For 3215/3215 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 713 event pairs, 1 based on Foata normal form. 1/156 useless extension candidates. Maximal degree in co-relation 1032. Up to 123 conditions per place. [2021-06-11 19:19:37,875 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 100 selfloop transitions, 17 changer transitions 1/122 dead transitions. [2021-06-11 19:19:37,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 122 transitions, 1422 flow [2021-06-11 19:19:37,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:37,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:37,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:37,876 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:37,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:37,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:37,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:37,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:37,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,877 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,877 INFO L185 Difference]: Start difference. First operand has 163 places, 119 transitions, 1123 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:37,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 122 transitions, 1422 flow [2021-06-11 19:19:37,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 122 transitions, 1286 flow, removed 57 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:37,890 INFO L241 Difference]: Finished difference. Result has 167 places, 121 transitions, 1093 flow [2021-06-11 19:19:37,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1093, PETRI_PLACES=167, PETRI_TRANSITIONS=121} [2021-06-11 19:19:37,890 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 152 predicate places. [2021-06-11 19:19:37,890 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:37,890 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 121 transitions, 1093 flow [2021-06-11 19:19:37,890 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 121 transitions, 1093 flow [2021-06-11 19:19:37,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 121 transitions, 1093 flow [2021-06-11 19:19:37,900 INFO L129 PetriNetUnfolder]: 59/153 cut-off events. [2021-06-11 19:19:37,900 INFO L130 PetriNetUnfolder]: For 2788/2788 co-relation queries the response was YES. [2021-06-11 19:19:37,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 153 events. 59/153 cut-off events. For 2788/2788 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 696 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 811. Up to 26 conditions per place. [2021-06-11 19:19:37,901 INFO L151 LiptonReduction]: Number of co-enabled transitions 68 [2021-06-11 19:19:37,904 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:37,904 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:37,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:37,904 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 121 transitions, 1093 flow [2021-06-11 19:19:37,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:37,905 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:37,905 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:38,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-06-11 19:19:38,106 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:38,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:38,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1067957913, now seen corresponding path program 46 times [2021-06-11 19:19:38,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:38,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885579739] [2021-06-11 19:19:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:38,139 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:38,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:38,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:38,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:38,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:38,177 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:38,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:38,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:38,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885579739] [2021-06-11 19:19:38,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484708335] [2021-06-11 19:19:38,197 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:38,213 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:38,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:38,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:38,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:38,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:38,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,222 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:38,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:38,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:38,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:38,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:38,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,235 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-06-11 19:19:38,235 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-11 19:19:38,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:38,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:38,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:38,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,249 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size 31 [2021-06-11 19:19:38,249 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size [2021-06-11 19:19:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,265 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:38,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:38,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,267 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:38,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:38,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:38,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,285 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:38,285 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:38,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,318 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:38,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:38,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,322 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:38,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:38,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:38,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,341 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:38,342 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:38,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:38,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:38,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:38,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229005090] [2021-06-11 19:19:38,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:38,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:38,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:38,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:38,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:38,379 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 121 transitions, 1093 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:38,379 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:38,379 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:38,379 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:38,512 INFO L129 PetriNetUnfolder]: 61/154 cut-off events. [2021-06-11 19:19:38,512 INFO L130 PetriNetUnfolder]: For 3332/3332 co-relation queries the response was YES. [2021-06-11 19:19:38,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 154 events. 61/154 cut-off events. For 3332/3332 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 678 event pairs, 1 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 989. Up to 125 conditions per place. [2021-06-11 19:19:38,514 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 106 selfloop transitions, 12 changer transitions 1/123 dead transitions. [2021-06-11 19:19:38,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 123 transitions, 1344 flow [2021-06-11 19:19:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:38,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 109 transitions. [2021-06-11 19:19:38,514 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43253968253968256 [2021-06-11 19:19:38,514 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 109 transitions. [2021-06-11 19:19:38,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 109 transitions. [2021-06-11 19:19:38,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:38,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 109 transitions. [2021-06-11 19:19:38,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:38,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:38,515 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:38,515 INFO L185 Difference]: Start difference. First operand has 166 places, 121 transitions, 1093 flow. Second operand 9 states and 109 transitions. [2021-06-11 19:19:38,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 123 transitions, 1344 flow [2021-06-11 19:19:38,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 123 transitions, 1217 flow, removed 46 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:38,527 INFO L241 Difference]: Finished difference. Result has 167 places, 122 transitions, 1003 flow [2021-06-11 19:19:38,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=966, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1003, PETRI_PLACES=167, PETRI_TRANSITIONS=122} [2021-06-11 19:19:38,527 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 152 predicate places. [2021-06-11 19:19:38,528 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:38,528 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 122 transitions, 1003 flow [2021-06-11 19:19:38,528 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 122 transitions, 1003 flow [2021-06-11 19:19:38,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 122 transitions, 1003 flow [2021-06-11 19:19:38,537 INFO L129 PetriNetUnfolder]: 59/149 cut-off events. [2021-06-11 19:19:38,537 INFO L130 PetriNetUnfolder]: For 2053/2053 co-relation queries the response was YES. [2021-06-11 19:19:38,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 149 events. 59/149 cut-off events. For 2053/2053 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 694 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 735. Up to 26 conditions per place. [2021-06-11 19:19:38,538 INFO L151 LiptonReduction]: Number of co-enabled transitions 68 [2021-06-11 19:19:38,541 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:38,541 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:38,541 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 19:19:38,541 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 122 transitions, 1003 flow [2021-06-11 19:19:38,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:38,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:38,542 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:38,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:38,745 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:38,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:38,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1506397683, now seen corresponding path program 4 times [2021-06-11 19:19:38,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:38,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774750405] [2021-06-11 19:19:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:38,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:38,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,783 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:38,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:38,811 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:38,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:38,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774750405] [2021-06-11 19:19:38,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208727109] [2021-06-11 19:19:38,828 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:38,843 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:38,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:38,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-11 19:19:38,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:38,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:38,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:38,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:38,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:38,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,871 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:38,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:38,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,885 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-06-11 19:19:38,885 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-06-11 19:19:38,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,900 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-06-11 19:19:38,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-06-11 19:19:38,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:38,917 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:38,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:38,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:38,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:38,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:38,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:38,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:38,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:38,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:38,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444085266] [2021-06-11 19:19:38,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:38,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:38,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:38,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:38,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2021-06-11 19:19:38,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 122 transitions, 1003 flow. Second operand has 13 states, 13 states have (on average 14.0) internal successors, (182), 13 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) [2021-06-11 19:19:38,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:38,994 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2021-06-11 19:19:38,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:39,233 INFO L129 PetriNetUnfolder]: 62/155 cut-off events. [2021-06-11 19:19:39,233 INFO L130 PetriNetUnfolder]: For 2568/2602 co-relation queries the response was YES. [2021-06-11 19:19:39,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 155 events. 62/155 cut-off events. For 2568/2602 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 697 event pairs, 0 based on Foata normal form. 1/153 useless extension candidates. Maximal degree in co-relation 944. Up to 109 conditions per place. [2021-06-11 19:19:39,235 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 91 selfloop transitions, 13 changer transitions 2/126 dead transitions. [2021-06-11 19:19:39,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 126 transitions, 1365 flow [2021-06-11 19:19:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 122 transitions. [2021-06-11 19:19:39,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5446428571428571 [2021-06-11 19:19:39,235 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 122 transitions. [2021-06-11 19:19:39,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 122 transitions. [2021-06-11 19:19:39,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:39,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 122 transitions. [2021-06-11 19:19:39,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:39,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:39,236 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:39,236 INFO L185 Difference]: Start difference. First operand has 166 places, 122 transitions, 1003 flow. Second operand 8 states and 122 transitions. [2021-06-11 19:19:39,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 126 transitions, 1365 flow [2021-06-11 19:19:39,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 126 transitions, 1339 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:39,247 INFO L241 Difference]: Finished difference. Result has 168 places, 124 transitions, 1086 flow [2021-06-11 19:19:39,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1086, PETRI_PLACES=168, PETRI_TRANSITIONS=124} [2021-06-11 19:19:39,247 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 153 predicate places. [2021-06-11 19:19:39,247 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:39,247 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 168 places, 124 transitions, 1086 flow [2021-06-11 19:19:39,247 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 168 places, 124 transitions, 1086 flow [2021-06-11 19:19:39,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 167 places, 124 transitions, 1086 flow [2021-06-11 19:19:39,257 INFO L129 PetriNetUnfolder]: 61/154 cut-off events. [2021-06-11 19:19:39,257 INFO L130 PetriNetUnfolder]: For 2334/2334 co-relation queries the response was YES. [2021-06-11 19:19:39,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 154 events. 61/154 cut-off events. For 2334/2334 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 718 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 823. Up to 30 conditions per place. [2021-06-11 19:19:39,258 INFO L151 LiptonReduction]: Number of co-enabled transitions 72 [2021-06-11 19:19:39,261 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:39,262 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:39,262 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 19:19:39,262 INFO L480 AbstractCegarLoop]: Abstraction has has 167 places, 124 transitions, 1086 flow [2021-06-11 19:19:39,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 14.0) internal successors, (182), 13 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) [2021-06-11 19:19:39,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:39,262 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:39,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-06-11 19:19:39,477 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:39,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:39,477 INFO L82 PathProgramCache]: Analyzing trace with hash -953994509, now seen corresponding path program 47 times [2021-06-11 19:19:39,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:39,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308865821] [2021-06-11 19:19:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:39,483 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:39,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,488 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:39,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:39,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:39,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:39,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:39,511 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:39,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:39,535 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:39,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:39,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308865821] [2021-06-11 19:19:39,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174928692] [2021-06-11 19:19:39,545 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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 [2021-06-11 19:19:39,562 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:39,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:39,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:39,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:39,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:39,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:39,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:39,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:39,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:39,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,582 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size 21 [2021-06-11 19:19:39,583 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.3 percent of original size [2021-06-11 19:19:39,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:39,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:39,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:39,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,597 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 37 [2021-06-11 19:19:39,597 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-11 19:19:39,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:39,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:39,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:39,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,612 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:39,612 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:39,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:39,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:39,629 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:39,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:39,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,631 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:39,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:39,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,653 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:39,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:39,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,655 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:39,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:39,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:39,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,657 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:39,658 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:39,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:39,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:39,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:39,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:39,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:39,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507366625] [2021-06-11 19:19:39,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:39,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:39,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:39,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:39,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:39,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 124 transitions, 1086 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:39,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:39,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:39,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:39,859 INFO L129 PetriNetUnfolder]: 65/172 cut-off events. [2021-06-11 19:19:39,859 INFO L130 PetriNetUnfolder]: For 4355/4355 co-relation queries the response was YES. [2021-06-11 19:19:39,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 172 events. 65/172 cut-off events. For 4355/4355 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 803 event pairs, 0 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 1207. Up to 129 conditions per place. [2021-06-11 19:19:39,860 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 110 selfloop transitions, 17 changer transitions 1/132 dead transitions. [2021-06-11 19:19:39,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 132 transitions, 1576 flow [2021-06-11 19:19:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2021-06-11 19:19:39,861 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2021-06-11 19:19:39,861 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 116 transitions. [2021-06-11 19:19:39,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 116 transitions. [2021-06-11 19:19:39,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:39,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 116 transitions. [2021-06-11 19:19:39,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 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) [2021-06-11 19:19:39,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:39,862 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:39,862 INFO L185 Difference]: Start difference. First operand has 167 places, 124 transitions, 1086 flow. Second operand 9 states and 116 transitions. [2021-06-11 19:19:39,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 132 transitions, 1576 flow [2021-06-11 19:19:39,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 132 transitions, 1509 flow, removed 22 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:39,876 INFO L241 Difference]: Finished difference. Result has 172 places, 128 transitions, 1233 flow [2021-06-11 19:19:39,877 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1233, PETRI_PLACES=172, PETRI_TRANSITIONS=128} [2021-06-11 19:19:39,877 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 157 predicate places. [2021-06-11 19:19:39,877 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:39,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 128 transitions, 1233 flow [2021-06-11 19:19:39,877 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 128 transitions, 1233 flow [2021-06-11 19:19:39,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 128 transitions, 1233 flow [2021-06-11 19:19:39,888 INFO L129 PetriNetUnfolder]: 64/169 cut-off events. [2021-06-11 19:19:39,888 INFO L130 PetriNetUnfolder]: For 3846/3846 co-relation queries the response was YES. [2021-06-11 19:19:39,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 169 events. 64/169 cut-off events. For 3846/3846 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 811 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 997. Up to 37 conditions per place. [2021-06-11 19:19:39,889 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 19:19:39,893 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:39,893 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:39,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 19:19:39,893 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 128 transitions, 1233 flow [2021-06-11 19:19:39,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:39,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:39,893 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:40,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-06-11 19:19:40,109 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:40,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash -953100779, now seen corresponding path program 48 times [2021-06-11 19:19:40,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:40,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411070480] [2021-06-11 19:19:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:40,115 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:40,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,119 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:40,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:40,125 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:40,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:40,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:40,140 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:40,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:40,152 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:40,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,162 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:40,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:40,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411070480] [2021-06-11 19:19:40,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605517308] [2021-06-11 19:19:40,171 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:40,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:40,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:40,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:40,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:40,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:40,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,219 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:40,219 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:40,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:40,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:40,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:40,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,244 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-06-11 19:19:40,244 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-06-11 19:19:40,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:40,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:40,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:40,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,260 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:40,261 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:40,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:40,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:40,280 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:40,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:40,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,282 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:40,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:40,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:19:40,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:40,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:40,306 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:40,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:40,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,308 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:40,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:40,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:40,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,318 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:40,319 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:40,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:40,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:40,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:40,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:40,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658099788] [2021-06-11 19:19:40,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:40,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:40,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:40,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:40,363 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:40,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 128 transitions, 1233 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:40,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:40,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:40,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:40,522 INFO L129 PetriNetUnfolder]: 66/170 cut-off events. [2021-06-11 19:19:40,523 INFO L130 PetriNetUnfolder]: For 4350/4350 co-relation queries the response was YES. [2021-06-11 19:19:40,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 170 events. 66/170 cut-off events. For 4350/4350 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 785 event pairs, 1 based on Foata normal form. 1/168 useless extension candidates. Maximal degree in co-relation 1187. Up to 129 conditions per place. [2021-06-11 19:19:40,524 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 109 selfloop transitions, 18 changer transitions 1/132 dead transitions. [2021-06-11 19:19:40,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 132 transitions, 1622 flow [2021-06-11 19:19:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2021-06-11 19:19:40,525 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2021-06-11 19:19:40,525 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 115 transitions. [2021-06-11 19:19:40,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 115 transitions. [2021-06-11 19:19:40,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:40,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 115 transitions. [2021-06-11 19:19:40,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 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) [2021-06-11 19:19:40,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:40,526 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:40,526 INFO L185 Difference]: Start difference. First operand has 171 places, 128 transitions, 1233 flow. Second operand 9 states and 115 transitions. [2021-06-11 19:19:40,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 132 transitions, 1622 flow [2021-06-11 19:19:40,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 132 transitions, 1394 flow, removed 101 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:40,540 INFO L241 Difference]: Finished difference. Result has 176 places, 130 transitions, 1181 flow [2021-06-11 19:19:40,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1083, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1181, PETRI_PLACES=176, PETRI_TRANSITIONS=130} [2021-06-11 19:19:40,540 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 161 predicate places. [2021-06-11 19:19:40,540 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:40,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 130 transitions, 1181 flow [2021-06-11 19:19:40,541 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 130 transitions, 1181 flow [2021-06-11 19:19:40,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 130 transitions, 1181 flow [2021-06-11 19:19:40,551 INFO L129 PetriNetUnfolder]: 64/166 cut-off events. [2021-06-11 19:19:40,551 INFO L130 PetriNetUnfolder]: For 3145/3145 co-relation queries the response was YES. [2021-06-11 19:19:40,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 166 events. 64/166 cut-off events. For 3145/3145 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 797 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 929. Up to 36 conditions per place. [2021-06-11 19:19:40,553 INFO L151 LiptonReduction]: Number of co-enabled transitions 74 [2021-06-11 19:19:40,556 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:40,556 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:40,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 19:19:40,556 INFO L480 AbstractCegarLoop]: Abstraction has has 175 places, 130 transitions, 1181 flow [2021-06-11 19:19:40,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:40,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:40,556 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:40,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:40,760 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:40,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1068511113, now seen corresponding path program 49 times [2021-06-11 19:19:40,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:40,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389418164] [2021-06-11 19:19:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:40,767 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:40,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,772 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:40,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:40,778 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:40,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:40,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:40,792 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:40,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:40,803 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:40,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,814 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:40,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:40,822 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:40,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389418164] [2021-06-11 19:19:40,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920214787] [2021-06-11 19:19:40,823 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:40,844 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:40,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:40,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:40,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,852 INFO L147 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size 17 [2021-06-11 19:19:40,853 INFO L142 QuantifierPusher]: treesize reduction 6, result has 73.9 percent of original size [2021-06-11 19:19:40,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:40,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:40,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:40,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,864 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:40,864 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:40,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,877 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size 32 [2021-06-11 19:19:40,877 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 19:19:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:40,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:40,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,893 INFO L147 QuantifierPusher]: treesize reduction 11, result has 78.8 percent of original size 41 [2021-06-11 19:19:40,894 INFO L142 QuantifierPusher]: treesize reduction 11, result has 78.8 percent of original size [2021-06-11 19:19:40,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:19:40,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:19:40,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:19:40,912 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:40,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-11 19:19:40,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:40,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:40,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:40,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:40,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:40,933 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:40,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:40,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:40,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:40,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 19:19:40,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:40,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:40,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:40,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:40,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540272099] [2021-06-11 19:19:40,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:40,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:40,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:40,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:40,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 130 transitions, 1181 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:40,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:40,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:40,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:41,196 INFO L129 PetriNetUnfolder]: 69/181 cut-off events. [2021-06-11 19:19:41,197 INFO L130 PetriNetUnfolder]: For 4662/4662 co-relation queries the response was YES. [2021-06-11 19:19:41,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 181 events. 69/181 cut-off events. For 4662/4662 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 855 event pairs, 2 based on Foata normal form. 1/179 useless extension candidates. Maximal degree in co-relation 1271. Up to 130 conditions per place. [2021-06-11 19:19:41,198 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 102 selfloop transitions, 30 changer transitions 1/137 dead transitions. [2021-06-11 19:19:41,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 137 transitions, 1689 flow [2021-06-11 19:19:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:41,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 153 transitions. [2021-06-11 19:19:41,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2021-06-11 19:19:41,199 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 153 transitions. [2021-06-11 19:19:41,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 153 transitions. [2021-06-11 19:19:41,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:41,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 153 transitions. [2021-06-11 19:19:41,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.75) internal successors, (153), 12 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,200 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,200 INFO L185 Difference]: Start difference. First operand has 175 places, 130 transitions, 1181 flow. Second operand 12 states and 153 transitions. [2021-06-11 19:19:41,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 137 transitions, 1689 flow [2021-06-11 19:19:41,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 137 transitions, 1580 flow, removed 41 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:41,215 INFO L241 Difference]: Finished difference. Result has 183 places, 134 transitions, 1317 flow [2021-06-11 19:19:41,215 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1317, PETRI_PLACES=183, PETRI_TRANSITIONS=134} [2021-06-11 19:19:41,216 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 168 predicate places. [2021-06-11 19:19:41,216 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:41,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 134 transitions, 1317 flow [2021-06-11 19:19:41,216 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 134 transitions, 1317 flow [2021-06-11 19:19:41,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 182 places, 134 transitions, 1317 flow [2021-06-11 19:19:41,227 INFO L129 PetriNetUnfolder]: 67/175 cut-off events. [2021-06-11 19:19:41,227 INFO L130 PetriNetUnfolder]: For 4197/4197 co-relation queries the response was YES. [2021-06-11 19:19:41,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 175 events. 67/175 cut-off events. For 4197/4197 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 854 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 1044. Up to 35 conditions per place. [2021-06-11 19:19:41,229 INFO L151 LiptonReduction]: Number of co-enabled transitions 78 [2021-06-11 19:19:41,232 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:41,232 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:41,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 19:19:41,233 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 134 transitions, 1317 flow [2021-06-11 19:19:41,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,233 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:41,233 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:41,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-06-11 19:19:41,433 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:41,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:41,433 INFO L82 PathProgramCache]: Analyzing trace with hash -209041937, now seen corresponding path program 50 times [2021-06-11 19:19:41,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:41,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973824104] [2021-06-11 19:19:41,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:41,440 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:41,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,446 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:41,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:41,452 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:41,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:41,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,468 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:41,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:41,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:41,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:41,492 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:41,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:41,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973824104] [2021-06-11 19:19:41,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747419703] [2021-06-11 19:19:41,511 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 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 [2021-06-11 19:19:41,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:41,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:41,528 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:41,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:41,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:41,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:41,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:41,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:41,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:41,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:41,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:41,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:41,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:41,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,560 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size 22 [2021-06-11 19:19:41,561 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:41,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:41,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:41,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:41,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,575 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:41,576 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:41,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:41,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:41,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:41,591 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:41,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:41,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:41,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:41,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:41,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:41,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:41,609 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:41,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:41,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,610 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:41,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:41,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:41,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:41,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:41,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:41,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:41,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066989190] [2021-06-11 19:19:41,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:41,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:41,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:41,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:41,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:41,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 134 transitions, 1317 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,644 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:41,644 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:41,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:41,826 INFO L129 PetriNetUnfolder]: 72/194 cut-off events. [2021-06-11 19:19:41,826 INFO L130 PetriNetUnfolder]: For 5820/5820 co-relation queries the response was YES. [2021-06-11 19:19:41,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 194 events. 72/194 cut-off events. For 5820/5820 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 959 event pairs, 1 based on Foata normal form. 1/192 useless extension candidates. Maximal degree in co-relation 1441. Up to 149 conditions per place. [2021-06-11 19:19:41,828 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 124 selfloop transitions, 14 changer transitions 1/143 dead transitions. [2021-06-11 19:19:41,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 143 transitions, 1899 flow [2021-06-11 19:19:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 115 transitions. [2021-06-11 19:19:41,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2021-06-11 19:19:41,829 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 115 transitions. [2021-06-11 19:19:41,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 115 transitions. [2021-06-11 19:19:41,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:41,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 115 transitions. [2021-06-11 19:19:41,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 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) [2021-06-11 19:19:41,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,829 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,829 INFO L185 Difference]: Start difference. First operand has 182 places, 134 transitions, 1317 flow. Second operand 9 states and 115 transitions. [2021-06-11 19:19:41,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 143 transitions, 1899 flow [2021-06-11 19:19:41,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 143 transitions, 1731 flow, removed 66 selfloop flow, removed 8 redundant places. [2021-06-11 19:19:41,848 INFO L241 Difference]: Finished difference. Result has 185 places, 138 transitions, 1367 flow [2021-06-11 19:19:41,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1367, PETRI_PLACES=185, PETRI_TRANSITIONS=138} [2021-06-11 19:19:41,848 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 170 predicate places. [2021-06-11 19:19:41,848 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:41,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 138 transitions, 1367 flow [2021-06-11 19:19:41,848 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 138 transitions, 1367 flow [2021-06-11 19:19:41,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 184 places, 138 transitions, 1367 flow [2021-06-11 19:19:41,861 INFO L129 PetriNetUnfolder]: 70/188 cut-off events. [2021-06-11 19:19:41,861 INFO L130 PetriNetUnfolder]: For 4487/4506 co-relation queries the response was YES. [2021-06-11 19:19:41,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 188 events. 70/188 cut-off events. For 4487/4506 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 952 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 1119. Up to 40 conditions per place. [2021-06-11 19:19:41,862 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:41,866 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:41,866 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:41,866 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 19:19:41,866 INFO L480 AbstractCegarLoop]: Abstraction has has 184 places, 138 transitions, 1367 flow [2021-06-11 19:19:41,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:41,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:41,867 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:42,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:42,067 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:42,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1012206123, now seen corresponding path program 51 times [2021-06-11 19:19:42,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:42,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667548591] [2021-06-11 19:19:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:42,074 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:42,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,080 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:42,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:42,086 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:42,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:42,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,107 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:42,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:42,117 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:42,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:42,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667548591] [2021-06-11 19:19:42,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244545565] [2021-06-11 19:19:42,126 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 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-06-11 19:19:42,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-11 19:19:42,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:42,147 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:42,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:42,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,155 INFO L147 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size 19 [2021-06-11 19:19:42,155 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 19:19:42,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,168 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-06-11 19:19:42,169 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-11 19:19:42,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:42,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,198 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:42,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:42,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:42,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:42,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:42,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:42,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,218 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.0 percent of original size 45 [2021-06-11 19:19:42,218 INFO L142 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size [2021-06-11 19:19:42,219 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.5 percent of original size 67 [2021-06-11 19:19:42,219 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.5 percent of original size [2021-06-11 19:19:42,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-06-11 19:19:42,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-06-11 19:19:42,245 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-06-11 19:19:42,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-11 19:19:42,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,246 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:42,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:42,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:42,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:42,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:42,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:42,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623761070] [2021-06-11 19:19:42,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:42,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:42,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:42,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:42,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:42,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 138 transitions, 1367 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:42,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:42,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:42,487 INFO L129 PetriNetUnfolder]: 72/199 cut-off events. [2021-06-11 19:19:42,487 INFO L130 PetriNetUnfolder]: For 5472/5472 co-relation queries the response was YES. [2021-06-11 19:19:42,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 199 events. 72/199 cut-off events. For 5472/5472 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1001 event pairs, 1 based on Foata normal form. 2/198 useless extension candidates. Maximal degree in co-relation 1413. Up to 151 conditions per place. [2021-06-11 19:19:42,489 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 113 selfloop transitions, 23 changer transitions 2/142 dead transitions. [2021-06-11 19:19:42,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 142 transitions, 1756 flow [2021-06-11 19:19:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 158 transitions. [2021-06-11 19:19:42,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4340659340659341 [2021-06-11 19:19:42,490 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 158 transitions. [2021-06-11 19:19:42,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 158 transitions. [2021-06-11 19:19:42,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:42,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 158 transitions. [2021-06-11 19:19:42,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,491 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,491 INFO L185 Difference]: Start difference. First operand has 184 places, 138 transitions, 1367 flow. Second operand 13 states and 158 transitions. [2021-06-11 19:19:42,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 142 transitions, 1756 flow [2021-06-11 19:19:42,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 142 transitions, 1609 flow, removed 67 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:42,511 INFO L241 Difference]: Finished difference. Result has 195 places, 140 transitions, 1339 flow [2021-06-11 19:19:42,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1339, PETRI_PLACES=195, PETRI_TRANSITIONS=140} [2021-06-11 19:19:42,512 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 180 predicate places. [2021-06-11 19:19:42,512 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:42,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 140 transitions, 1339 flow [2021-06-11 19:19:42,512 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 140 transitions, 1339 flow [2021-06-11 19:19:42,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 140 transitions, 1339 flow [2021-06-11 19:19:42,525 INFO L129 PetriNetUnfolder]: 70/193 cut-off events. [2021-06-11 19:19:42,525 INFO L130 PetriNetUnfolder]: For 3608/3608 co-relation queries the response was YES. [2021-06-11 19:19:42,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 193 events. 70/193 cut-off events. For 3608/3608 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1000 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 1090. Up to 42 conditions per place. [2021-06-11 19:19:42,527 INFO L151 LiptonReduction]: Number of co-enabled transitions 86 [2021-06-11 19:19:42,531 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:42,531 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:42,531 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:42,531 INFO L480 AbstractCegarLoop]: Abstraction has has 193 places, 140 transitions, 1339 flow [2021-06-11 19:19:42,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:42,531 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:42,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-06-11 19:19:42,732 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:42,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash -292158827, now seen corresponding path program 52 times [2021-06-11 19:19:42,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:42,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672211419] [2021-06-11 19:19:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:42,738 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:42,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,744 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:42,750 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:42,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:42,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,766 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:42,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:42,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:42,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:42,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:42,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672211419] [2021-06-11 19:19:42,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133853153] [2021-06-11 19:19:42,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:42,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:42,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:42,811 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:42,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:42,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:42,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:42,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:42,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:42,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:42,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,837 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:42,837 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:42,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:42,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:42,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:42,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,881 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:42,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:42,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,882 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:42,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:42,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:42,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:42,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,900 INFO L147 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size 35 [2021-06-11 19:19:42,900 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-06-11 19:19:42,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:42,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:42,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:42,917 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:42,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:42,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,919 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:42,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:42,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:42,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:42,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:42,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:42,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167036034] [2021-06-11 19:19:42,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:42,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:42,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:42,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:42,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:42,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 140 transitions, 1339 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:42,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:42,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:42,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:43,072 INFO L129 PetriNetUnfolder]: 72/193 cut-off events. [2021-06-11 19:19:43,072 INFO L130 PetriNetUnfolder]: For 4293/4293 co-relation queries the response was YES. [2021-06-11 19:19:43,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 193 events. 72/193 cut-off events. For 4293/4293 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 957 event pairs, 1 based on Foata normal form. 1/191 useless extension candidates. Maximal degree in co-relation 1300. Up to 156 conditions per place. [2021-06-11 19:19:43,074 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 126 selfloop transitions, 13 changer transitions 1/144 dead transitions. [2021-06-11 19:19:43,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 144 transitions, 1752 flow [2021-06-11 19:19:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:43,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2021-06-11 19:19:43,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2021-06-11 19:19:43,076 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 110 transitions. [2021-06-11 19:19:43,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 110 transitions. [2021-06-11 19:19:43,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:43,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 110 transitions. [2021-06-11 19:19:43,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 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) [2021-06-11 19:19:43,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,077 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,077 INFO L185 Difference]: Start difference. First operand has 193 places, 140 transitions, 1339 flow. Second operand 9 states and 110 transitions. [2021-06-11 19:19:43,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 144 transitions, 1752 flow [2021-06-11 19:19:43,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 144 transitions, 1658 flow, removed 27 selfloop flow, removed 10 redundant places. [2021-06-11 19:19:43,096 INFO L241 Difference]: Finished difference. Result has 194 places, 143 transitions, 1378 flow [2021-06-11 19:19:43,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1245, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1378, PETRI_PLACES=194, PETRI_TRANSITIONS=143} [2021-06-11 19:19:43,096 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 179 predicate places. [2021-06-11 19:19:43,096 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:43,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 194 places, 143 transitions, 1378 flow [2021-06-11 19:19:43,096 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 194 places, 143 transitions, 1378 flow [2021-06-11 19:19:43,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 143 transitions, 1378 flow [2021-06-11 19:19:43,109 INFO L129 PetriNetUnfolder]: 70/189 cut-off events. [2021-06-11 19:19:43,110 INFO L130 PetriNetUnfolder]: For 3718/3718 co-relation queries the response was YES. [2021-06-11 19:19:43,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 189 events. 70/189 cut-off events. For 3718/3718 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 976 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 1047. Up to 39 conditions per place. [2021-06-11 19:19:43,111 INFO L151 LiptonReduction]: Number of co-enabled transitions 86 [2021-06-11 19:19:43,115 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:43,115 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:43,116 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:43,116 INFO L480 AbstractCegarLoop]: Abstraction has has 193 places, 143 transitions, 1378 flow [2021-06-11 19:19:43,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,116 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:43,116 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:43,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-06-11 19:19:43,316 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:43,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:43,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1067617383, now seen corresponding path program 53 times [2021-06-11 19:19:43,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:43,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096176418] [2021-06-11 19:19:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:43,329 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:43,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:43,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:43,341 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:43,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:43,356 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:43,370 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:43,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:43,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:43,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:43,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096176418] [2021-06-11 19:19:43,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931899721] [2021-06-11 19:19:43,393 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 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) [2021-06-11 19:19:43,419 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:43,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:43,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:43,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:43,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:43,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:43,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:43,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:43,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:43,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:43,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,441 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:43,441 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:43,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:43,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:43,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:43,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,454 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-06-11 19:19:43,454 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:43,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:43,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:43,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:43,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:43,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:43,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:43,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:43,488 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:43,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:43,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:43,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:43,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:43,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:43,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:43,512 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:43,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:43,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:43,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:43,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:43,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:43,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:43,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:43,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:43,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328477747] [2021-06-11 19:19:43,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:43,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:43,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:43,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:43,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:43,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 143 transitions, 1378 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:43,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:43,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:43,743 INFO L129 PetriNetUnfolder]: 72/189 cut-off events. [2021-06-11 19:19:43,743 INFO L130 PetriNetUnfolder]: For 4128/4128 co-relation queries the response was YES. [2021-06-11 19:19:43,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 189 events. 72/189 cut-off events. For 4128/4128 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 933 event pairs, 1 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 1260. Up to 141 conditions per place. [2021-06-11 19:19:43,745 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 109 selfloop transitions, 32 changer transitions 1/146 dead transitions. [2021-06-11 19:19:43,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 146 transitions, 1723 flow [2021-06-11 19:19:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 152 transitions. [2021-06-11 19:19:43,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2021-06-11 19:19:43,746 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 152 transitions. [2021-06-11 19:19:43,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 152 transitions. [2021-06-11 19:19:43,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:43,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 152 transitions. [2021-06-11 19:19:43,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,749 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,749 INFO L185 Difference]: Start difference. First operand has 193 places, 143 transitions, 1378 flow. Second operand 12 states and 152 transitions. [2021-06-11 19:19:43,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 146 transitions, 1723 flow [2021-06-11 19:19:43,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 146 transitions, 1595 flow, removed 53 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:43,767 INFO L241 Difference]: Finished difference. Result has 201 places, 145 transitions, 1382 flow [2021-06-11 19:19:43,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1382, PETRI_PLACES=201, PETRI_TRANSITIONS=145} [2021-06-11 19:19:43,768 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 186 predicate places. [2021-06-11 19:19:43,768 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:43,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 145 transitions, 1382 flow [2021-06-11 19:19:43,768 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 145 transitions, 1382 flow [2021-06-11 19:19:43,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 145 transitions, 1382 flow [2021-06-11 19:19:43,781 INFO L129 PetriNetUnfolder]: 70/186 cut-off events. [2021-06-11 19:19:43,781 INFO L130 PetriNetUnfolder]: For 3425/3425 co-relation queries the response was YES. [2021-06-11 19:19:43,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1124 conditions, 186 events. 70/186 cut-off events. For 3425/3425 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 938 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 1023. Up to 38 conditions per place. [2021-06-11 19:19:43,783 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:43,787 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:43,787 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:43,787 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:43,787 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 145 transitions, 1382 flow [2021-06-11 19:19:43,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:43,787 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:43,787 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:43,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:43,997 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:43,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1037111399, now seen corresponding path program 54 times [2021-06-11 19:19:43,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:43,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691514483] [2021-06-11 19:19:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:44,003 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:44,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,008 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:44,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:44,015 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:44,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:44,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:44,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:44,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:44,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:44,052 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:44,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:44,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691514483] [2021-06-11 19:19:44,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562175234] [2021-06-11 19:19:44,061 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE 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 [2021-06-11 19:19:44,076 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 19:19:44,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:44,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:44,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:44,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:44,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,085 INFO L147 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size 16 [2021-06-11 19:19:44,085 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size [2021-06-11 19:19:44,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:44,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:44,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:44,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:44,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:44,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:44,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:44,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,113 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-06-11 19:19:44,113 INFO L142 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size [2021-06-11 19:19:44,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:44,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:44,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:44,129 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:44,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:19:44,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:44,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:44,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:44,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:44,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,147 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:44,147 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,169 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:44,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:44,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:44,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:44,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,179 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:44,179 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:44,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:44,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:44,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:44,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:44,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722843352] [2021-06-11 19:19:44,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:44,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:44,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:44,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:44,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:44,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 145 transitions, 1382 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:44,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:44,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:44,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:44,362 INFO L129 PetriNetUnfolder]: 72/191 cut-off events. [2021-06-11 19:19:44,362 INFO L130 PetriNetUnfolder]: For 4181/4181 co-relation queries the response was YES. [2021-06-11 19:19:44,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 191 events. 72/191 cut-off events. For 4181/4181 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 952 event pairs, 1 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 1246. Up to 153 conditions per place. [2021-06-11 19:19:44,364 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 127 selfloop transitions, 15 changer transitions 1/147 dead transitions. [2021-06-11 19:19:44,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 147 transitions, 1681 flow [2021-06-11 19:19:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:44,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 111 transitions. [2021-06-11 19:19:44,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2021-06-11 19:19:44,364 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 111 transitions. [2021-06-11 19:19:44,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 111 transitions. [2021-06-11 19:19:44,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:44,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 111 transitions. [2021-06-11 19:19:44,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 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) [2021-06-11 19:19:44,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:44,365 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:44,365 INFO L185 Difference]: Start difference. First operand has 200 places, 145 transitions, 1382 flow. Second operand 9 states and 111 transitions. [2021-06-11 19:19:44,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 147 transitions, 1681 flow [2021-06-11 19:19:44,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 147 transitions, 1544 flow, removed 41 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:44,382 INFO L241 Difference]: Finished difference. Result has 201 places, 146 transitions, 1288 flow [2021-06-11 19:19:44,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1245, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1288, PETRI_PLACES=201, PETRI_TRANSITIONS=146} [2021-06-11 19:19:44,382 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 186 predicate places. [2021-06-11 19:19:44,382 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:44,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 146 transitions, 1288 flow [2021-06-11 19:19:44,383 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 146 transitions, 1288 flow [2021-06-11 19:19:44,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 146 transitions, 1288 flow [2021-06-11 19:19:44,395 INFO L129 PetriNetUnfolder]: 70/187 cut-off events. [2021-06-11 19:19:44,395 INFO L130 PetriNetUnfolder]: For 3045/3045 co-relation queries the response was YES. [2021-06-11 19:19:44,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 187 events. 70/187 cut-off events. For 3045/3045 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 945 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 973. Up to 34 conditions per place. [2021-06-11 19:19:44,397 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:44,401 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:44,401 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:44,401 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:44,401 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 146 transitions, 1288 flow [2021-06-11 19:19:44,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:44,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:44,402 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:44,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:44,613 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:44,613 INFO L82 PathProgramCache]: Analyzing trace with hash -322664811, now seen corresponding path program 4 times [2021-06-11 19:19:44,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:44,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163474678] [2021-06-11 19:19:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:44,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:44,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,655 INFO L142 QuantifierPusher]: treesize reduction 13, result has 71.1 percent of original size [2021-06-11 19:19:44,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:44,683 INFO L142 QuantifierPusher]: treesize reduction 13, result has 62.9 percent of original size [2021-06-11 19:19:44,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:44,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163474678] [2021-06-11 19:19:44,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949876607] [2021-06-11 19:19:44,700 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-11 19:19:44,715 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:44,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:44,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-11 19:19:44,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:44,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:44,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:44,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:44,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:44,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,744 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:44,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:44,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,769 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-06-11 19:19:44,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-06-11 19:19:44,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:44,782 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.2 percent of original size [2021-06-11 19:19:44,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:44,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:44,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:44,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:44,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:44,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:44,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:44,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:19:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:44,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:44,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-06-11 19:19:44,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185833103] [2021-06-11 19:19:44,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-11 19:19:44,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:44,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-11 19:19:44,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-06-11 19:19:44,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2021-06-11 19:19:44,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 146 transitions, 1288 flow. Second operand has 13 states, 13 states have (on average 14.0) internal successors, (182), 13 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) [2021-06-11 19:19:44,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:44,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2021-06-11 19:19:44,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:45,018 INFO L129 PetriNetUnfolder]: 72/193 cut-off events. [2021-06-11 19:19:45,018 INFO L130 PetriNetUnfolder]: For 4618/4638 co-relation queries the response was YES. [2021-06-11 19:19:45,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 193 events. 72/193 cut-off events. For 4618/4638 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 980 event pairs, 0 based on Foata normal form. 1/191 useless extension candidates. Maximal degree in co-relation 1257. Up to 137 conditions per place. [2021-06-11 19:19:45,020 INFO L132 encePairwiseOnDemand]: 23/28 looper letters, 113 selfloop transitions, 13 changer transitions 2/150 dead transitions. [2021-06-11 19:19:45,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 150 transitions, 1722 flow [2021-06-11 19:19:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-11 19:19:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-11 19:19:45,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 122 transitions. [2021-06-11 19:19:45,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5446428571428571 [2021-06-11 19:19:45,021 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 122 transitions. [2021-06-11 19:19:45,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 122 transitions. [2021-06-11 19:19:45,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:45,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 122 transitions. [2021-06-11 19:19:45,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:45,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:45,022 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 28.0) internal successors, (252), 9 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) [2021-06-11 19:19:45,022 INFO L185 Difference]: Start difference. First operand has 200 places, 146 transitions, 1288 flow. Second operand 8 states and 122 transitions. [2021-06-11 19:19:45,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 150 transitions, 1722 flow [2021-06-11 19:19:45,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 150 transitions, 1692 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:45,040 INFO L241 Difference]: Finished difference. Result has 202 places, 148 transitions, 1383 flow [2021-06-11 19:19:45,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1383, PETRI_PLACES=202, PETRI_TRANSITIONS=148} [2021-06-11 19:19:45,040 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 187 predicate places. [2021-06-11 19:19:45,040 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:45,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 148 transitions, 1383 flow [2021-06-11 19:19:45,040 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 148 transitions, 1383 flow [2021-06-11 19:19:45,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 148 transitions, 1383 flow [2021-06-11 19:19:45,054 INFO L129 PetriNetUnfolder]: 72/191 cut-off events. [2021-06-11 19:19:45,054 INFO L130 PetriNetUnfolder]: For 4109/4109 co-relation queries the response was YES. [2021-06-11 19:19:45,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 191 events. 72/191 cut-off events. For 4109/4109 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 982 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 1080. Up to 37 conditions per place. [2021-06-11 19:19:45,056 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:45,060 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:45,060 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:45,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:45,061 INFO L480 AbstractCegarLoop]: Abstraction has has 201 places, 148 transitions, 1383 flow [2021-06-11 19:19:45,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 14.0) internal successors, (182), 13 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) [2021-06-11 19:19:45,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:45,061 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:45,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:45,262 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:45,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash 681232307, now seen corresponding path program 55 times [2021-06-11 19:19:45,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:45,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231554033] [2021-06-11 19:19:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:45,269 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:45,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,273 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:45,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:45,279 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:45,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:45,286 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:45,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:45,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:45,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:45,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:45,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:45,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:45,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231554033] [2021-06-11 19:19:45,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265480708] [2021-06-11 19:19:45,328 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:45,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:45,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:45,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:45,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,352 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 19:19:45,352 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-11 19:19:45,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:45,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:45,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:45,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,364 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29 [2021-06-11 19:19:45,364 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size [2021-06-11 19:19:45,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,384 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.0 percent of original size [2021-06-11 19:19:45,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:45,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:45,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:45,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,400 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size 35 [2021-06-11 19:19:45,401 INFO L142 QuantifierPusher]: treesize reduction -2, result has 106.1 percent of original size [2021-06-11 19:19:45,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:45,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:45,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:45,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,417 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:45,417 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,438 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:45,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:45,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,439 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:45,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:45,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:45,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,442 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:45,442 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:45,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:45,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:45,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:45,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:45,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944788277] [2021-06-11 19:19:45,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:45,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:45,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:45,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:45,479 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:45,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 148 transitions, 1383 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:45,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:45,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:45,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:45,596 INFO L129 PetriNetUnfolder]: 73/190 cut-off events. [2021-06-11 19:19:45,596 INFO L130 PetriNetUnfolder]: For 4860/4860 co-relation queries the response was YES. [2021-06-11 19:19:45,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 190 events. 73/190 cut-off events. For 4860/4860 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 945 event pairs, 0 based on Foata normal form. 1/188 useless extension candidates. Maximal degree in co-relation 1296. Up to 158 conditions per place. [2021-06-11 19:19:45,598 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 134 selfloop transitions, 11 changer transitions 1/150 dead transitions. [2021-06-11 19:19:45,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 150 transitions, 1692 flow [2021-06-11 19:19:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:45,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 108 transitions. [2021-06-11 19:19:45,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-11 19:19:45,598 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 108 transitions. [2021-06-11 19:19:45,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 108 transitions. [2021-06-11 19:19:45,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:45,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 108 transitions. [2021-06-11 19:19:45,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.0) internal successors, (108), 9 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) [2021-06-11 19:19:45,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:45,599 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:45,599 INFO L185 Difference]: Start difference. First operand has 201 places, 148 transitions, 1383 flow. Second operand 9 states and 108 transitions. [2021-06-11 19:19:45,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 150 transitions, 1692 flow [2021-06-11 19:19:45,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 150 transitions, 1615 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:45,617 INFO L241 Difference]: Finished difference. Result has 205 places, 149 transitions, 1343 flow [2021-06-11 19:19:45,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1343, PETRI_PLACES=205, PETRI_TRANSITIONS=149} [2021-06-11 19:19:45,617 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 190 predicate places. [2021-06-11 19:19:45,618 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:45,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 149 transitions, 1343 flow [2021-06-11 19:19:45,618 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 149 transitions, 1343 flow [2021-06-11 19:19:45,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 149 transitions, 1343 flow [2021-06-11 19:19:45,631 INFO L129 PetriNetUnfolder]: 72/187 cut-off events. [2021-06-11 19:19:45,631 INFO L130 PetriNetUnfolder]: For 3660/3660 co-relation queries the response was YES. [2021-06-11 19:19:45,632 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 187 events. 72/187 cut-off events. For 3660/3660 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 952 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 1032. Up to 34 conditions per place. [2021-06-11 19:19:45,633 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:45,637 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:45,637 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:45,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:45,637 INFO L480 AbstractCegarLoop]: Abstraction has has 204 places, 149 transitions, 1343 flow [2021-06-11 19:19:45,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:45,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:45,637 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:45,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:45,839 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:45,839 INFO L82 PathProgramCache]: Analyzing trace with hash -208148207, now seen corresponding path program 56 times [2021-06-11 19:19:45,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:45,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48082973] [2021-06-11 19:19:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:45,847 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:45,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,852 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:45,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:45,858 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:45,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:45,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-06-11 19:19:45,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:45,880 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:45,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:45,895 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-06-11 19:19:45,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:45,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:45,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:45,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48082973] [2021-06-11 19:19:45,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217176241] [2021-06-11 19:19:45,918 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 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:45,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:45,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:45,934 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:45,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:45,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:45,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,942 INFO L147 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size 19 [2021-06-11 19:19:45,942 INFO L142 QuantifierPusher]: treesize reduction 7, result has 73.1 percent of original size [2021-06-11 19:19:45,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:45,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:45,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:45,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,954 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-06-11 19:19:45,954 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-06-11 19:19:45,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:45,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:45,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:45,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:45,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:45,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:45,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:45,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:45,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:45,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:45,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:45,998 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:45,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:45,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,999 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:45,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:45,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:46,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:46,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:46,020 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:46,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:46,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,021 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:46,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:46,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:46,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:46,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:46,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:46,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863312526] [2021-06-11 19:19:46,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:46,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:46,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:46,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:46,045 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:46,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 149 transitions, 1343 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:46,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:46,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:46,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:46,181 INFO L129 PetriNetUnfolder]: 73/186 cut-off events. [2021-06-11 19:19:46,181 INFO L130 PetriNetUnfolder]: For 4410/4410 co-relation queries the response was YES. [2021-06-11 19:19:46,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1349 conditions, 186 events. 73/186 cut-off events. For 4410/4410 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 915 event pairs, 0 based on Foata normal form. 1/184 useless extension candidates. Maximal degree in co-relation 1247. Up to 152 conditions per place. [2021-06-11 19:19:46,183 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 130 selfloop transitions, 17 changer transitions 1/152 dead transitions. [2021-06-11 19:19:46,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 152 transitions, 1700 flow [2021-06-11 19:19:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:46,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:46,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:46,185 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:46,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:46,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:46,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:46,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:46,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:46,185 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:46,185 INFO L185 Difference]: Start difference. First operand has 204 places, 149 transitions, 1343 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:46,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 152 transitions, 1700 flow [2021-06-11 19:19:46,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 152 transitions, 1674 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:46,203 INFO L241 Difference]: Finished difference. Result has 208 places, 151 transitions, 1421 flow [2021-06-11 19:19:46,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1421, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2021-06-11 19:19:46,203 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 193 predicate places. [2021-06-11 19:19:46,203 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:46,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 151 transitions, 1421 flow [2021-06-11 19:19:46,204 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 151 transitions, 1421 flow [2021-06-11 19:19:46,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 207 places, 151 transitions, 1421 flow [2021-06-11 19:19:46,217 INFO L129 PetriNetUnfolder]: 72/184 cut-off events. [2021-06-11 19:19:46,217 INFO L130 PetriNetUnfolder]: For 3763/3763 co-relation queries the response was YES. [2021-06-11 19:19:46,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 184 events. 72/184 cut-off events. For 3763/3763 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 949 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 1044. Up to 34 conditions per place. [2021-06-11 19:19:46,219 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:46,223 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:46,223 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:46,223 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:46,223 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 151 transitions, 1421 flow [2021-06-11 19:19:46,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:46,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:46,223 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:46,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:46,425 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:46,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:46,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1887820753, now seen corresponding path program 57 times [2021-06-11 19:19:46,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:46,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004797891] [2021-06-11 19:19:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:46,434 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:46,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,440 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:46,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:46,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:46,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:46,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:46,469 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:46,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:46,481 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:46,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:46,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004797891] [2021-06-11 19:19:46,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577748044] [2021-06-11 19:19:46,490 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 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:46,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:46,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:46,515 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:46,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:46,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:46,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:46,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:46,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:46,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,536 INFO L147 QuantifierPusher]: treesize reduction 5, result has 83.9 percent of original size 26 [2021-06-11 19:19:46,537 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.9 percent of original size [2021-06-11 19:19:46,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:46,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:46,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:46,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,561 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size 28 [2021-06-11 19:19:46,562 INFO L142 QuantifierPusher]: treesize reduction 3, result has 90.3 percent of original size [2021-06-11 19:19:46,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,577 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-06-11 19:19:46,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,578 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:46,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:46,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:46,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,600 INFO L147 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size 35 [2021-06-11 19:19:46,601 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.0 percent of original size [2021-06-11 19:19:46,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:46,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:46,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:46,624 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-06-11 19:19:46,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,625 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:46,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:46,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:46,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:46,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:46,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:46,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:46,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356717744] [2021-06-11 19:19:46,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:46,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:46,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:46,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:46,650 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:46,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 151 transitions, 1421 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:46,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:46,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:46,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:47,003 INFO L129 PetriNetUnfolder]: 74/191 cut-off events. [2021-06-11 19:19:47,003 INFO L130 PetriNetUnfolder]: For 5729/5729 co-relation queries the response was YES. [2021-06-11 19:19:47,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 191 events. 74/191 cut-off events. For 5729/5729 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 954 event pairs, 1 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 1371. Up to 149 conditions per place. [2021-06-11 19:19:47,005 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 127 selfloop transitions, 14 changer transitions 10/155 dead transitions. [2021-06-11 19:19:47,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 155 transitions, 1935 flow [2021-06-11 19:19:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-11 19:19:47,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-11 19:19:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 180 transitions. [2021-06-11 19:19:47,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2021-06-11 19:19:47,006 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 180 transitions. [2021-06-11 19:19:47,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 180 transitions. [2021-06-11 19:19:47,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:47,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 180 transitions. [2021-06-11 19:19:47,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 12.0) internal successors, (180), 15 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) [2021-06-11 19:19:47,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,007 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 28.0) internal successors, (448), 16 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,007 INFO L185 Difference]: Start difference. First operand has 207 places, 151 transitions, 1421 flow. Second operand 15 states and 180 transitions. [2021-06-11 19:19:47,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 155 transitions, 1935 flow [2021-06-11 19:19:47,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 155 transitions, 1824 flow, removed 43 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:47,029 INFO L241 Difference]: Finished difference. Result has 219 places, 145 transitions, 1304 flow [2021-06-11 19:19:47,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1304, PETRI_PLACES=219, PETRI_TRANSITIONS=145} [2021-06-11 19:19:47,029 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 204 predicate places. [2021-06-11 19:19:47,029 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:47,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 219 places, 145 transitions, 1304 flow [2021-06-11 19:19:47,029 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 219 places, 145 transitions, 1304 flow [2021-06-11 19:19:47,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 208 places, 145 transitions, 1304 flow [2021-06-11 19:19:47,042 INFO L129 PetriNetUnfolder]: 70/176 cut-off events. [2021-06-11 19:19:47,043 INFO L130 PetriNetUnfolder]: For 4048/4048 co-relation queries the response was YES. [2021-06-11 19:19:47,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 176 events. 70/176 cut-off events. For 4048/4048 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 874 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 1008. Up to 29 conditions per place. [2021-06-11 19:19:47,044 INFO L151 LiptonReduction]: Number of co-enabled transitions 74 [2021-06-11 19:19:47,048 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:47,048 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:47,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:47,048 INFO L480 AbstractCegarLoop]: Abstraction has has 208 places, 145 transitions, 1304 flow [2021-06-11 19:19:47,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,049 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:47,049 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:47,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-06-11 19:19:47,253 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:47,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1826841459, now seen corresponding path program 58 times [2021-06-11 19:19:47,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:47,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171219919] [2021-06-11 19:19:47,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:47,260 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:47,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,265 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:47,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:47,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:47,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:47,286 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:47,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:47,298 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:47,309 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:47,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:47,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171219919] [2021-06-11 19:19:47,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499771456] [2021-06-11 19:19:47,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:47,333 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:47,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:47,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:47,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,342 INFO L147 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size 16 [2021-06-11 19:19:47,342 INFO L142 QuantifierPusher]: treesize reduction 3, result has 84.2 percent of original size [2021-06-11 19:19:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,354 INFO L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-06-11 19:19:47,354 INFO L142 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-06-11 19:19:47,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:47,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:47,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:47,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,366 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size 31 [2021-06-11 19:19:47,367 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-06-11 19:19:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:47,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:47,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:47,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,381 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 46 [2021-06-11 19:19:47,382 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:47,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:47,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:47,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:47,399 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:47,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:47,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:47,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:47,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:47,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,422 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:47,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:47,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:47,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,426 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:47,427 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:47,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:47,462 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:47,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:47,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:47,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829003795] [2021-06-11 19:19:47,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:47,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:47,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:47,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:47,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:47,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 145 transitions, 1304 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:47,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:47,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:47,641 INFO L129 PetriNetUnfolder]: 75/190 cut-off events. [2021-06-11 19:19:47,641 INFO L130 PetriNetUnfolder]: For 6464/6464 co-relation queries the response was YES. [2021-06-11 19:19:47,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 190 events. 75/190 cut-off events. For 6464/6464 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 915 event pairs, 1 based on Foata normal form. 1/188 useless extension candidates. Maximal degree in co-relation 1400. Up to 153 conditions per place. [2021-06-11 19:19:47,642 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 133 selfloop transitions, 14 changer transitions 1/152 dead transitions. [2021-06-11 19:19:47,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 152 transitions, 1914 flow [2021-06-11 19:19:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:47,643 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:47,643 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:47,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:47,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:47,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:47,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:47,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,644 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,644 INFO L185 Difference]: Start difference. First operand has 208 places, 145 transitions, 1304 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:47,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 152 transitions, 1914 flow [2021-06-11 19:19:47,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 152 transitions, 1830 flow, removed 25 selfloop flow, removed 16 redundant places. [2021-06-11 19:19:47,664 INFO L241 Difference]: Finished difference. Result has 203 places, 149 transitions, 1469 flow [2021-06-11 19:19:47,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1469, PETRI_PLACES=203, PETRI_TRANSITIONS=149} [2021-06-11 19:19:47,664 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 188 predicate places. [2021-06-11 19:19:47,664 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:47,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 149 transitions, 1469 flow [2021-06-11 19:19:47,664 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 149 transitions, 1469 flow [2021-06-11 19:19:47,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 202 places, 149 transitions, 1469 flow [2021-06-11 19:19:47,678 INFO L129 PetriNetUnfolder]: 73/185 cut-off events. [2021-06-11 19:19:47,678 INFO L130 PetriNetUnfolder]: For 4840/4860 co-relation queries the response was YES. [2021-06-11 19:19:47,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 185 events. 73/185 cut-off events. For 4840/4860 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 927 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 1116. Up to 34 conditions per place. [2021-06-11 19:19:47,680 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 19:19:47,684 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:47,684 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:47,684 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:47,684 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 149 transitions, 1469 flow [2021-06-11 19:19:47,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:47,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:47,684 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:47,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-06-11 19:19:47,885 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:47,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:47,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1827735189, now seen corresponding path program 59 times [2021-06-11 19:19:47,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:47,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612789051] [2021-06-11 19:19:47,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:47,896 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:47,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,901 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:47,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:47,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:47,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:47,922 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:47,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:47,942 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:47,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:47,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:47,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612789051] [2021-06-11 19:19:47,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495680381] [2021-06-11 19:19:47,962 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:47,977 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:47,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:47,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:47,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:47,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,986 INFO L147 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size 16 [2021-06-11 19:19:47,986 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size [2021-06-11 19:19:47,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:47,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,997 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size 18 [2021-06-11 19:19:47,998 INFO L142 QuantifierPusher]: treesize reduction -1, result has 105.9 percent of original size [2021-06-11 19:19:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:47,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:47,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:47,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:48,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,010 INFO L147 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size 31 [2021-06-11 19:19:48,010 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-06-11 19:19:48,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:48,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:48,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:48,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,025 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 46 [2021-06-11 19:19:48,026 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:48,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:48,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:48,043 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:48,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:48,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:48,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:19:48,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:48,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:48,075 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:48,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:48,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,077 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:48,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:48,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,081 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:48,081 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:48,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:48,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:48,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:48,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:48,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527234296] [2021-06-11 19:19:48,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:48,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:48,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:48,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:48,119 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:48,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 149 transitions, 1469 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:48,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:48,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:48,309 INFO L129 PetriNetUnfolder]: 74/191 cut-off events. [2021-06-11 19:19:48,309 INFO L130 PetriNetUnfolder]: For 6178/6178 co-relation queries the response was YES. [2021-06-11 19:19:48,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 191 events. 74/191 cut-off events. For 6178/6178 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 927 event pairs, 0 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 1404. Up to 154 conditions per place. [2021-06-11 19:19:48,311 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 133 selfloop transitions, 15 changer transitions 1/153 dead transitions. [2021-06-11 19:19:48,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 153 transitions, 1918 flow [2021-06-11 19:19:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:48,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:48,312 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:48,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:48,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:48,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:48,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:48,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,312 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,313 INFO L185 Difference]: Start difference. First operand has 202 places, 149 transitions, 1469 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:48,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 153 transitions, 1918 flow [2021-06-11 19:19:48,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 153 transitions, 1685 flow, removed 110 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:48,334 INFO L241 Difference]: Finished difference. Result has 208 places, 151 transitions, 1423 flow [2021-06-11 19:19:48,334 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1423, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2021-06-11 19:19:48,334 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 193 predicate places. [2021-06-11 19:19:48,334 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:48,334 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 151 transitions, 1423 flow [2021-06-11 19:19:48,334 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 151 transitions, 1423 flow [2021-06-11 19:19:48,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 207 places, 151 transitions, 1423 flow [2021-06-11 19:19:48,348 INFO L129 PetriNetUnfolder]: 73/186 cut-off events. [2021-06-11 19:19:48,348 INFO L130 PetriNetUnfolder]: For 3840/3860 co-relation queries the response was YES. [2021-06-11 19:19:48,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 186 events. 73/186 cut-off events. For 3840/3860 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 926 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 1037. Up to 28 conditions per place. [2021-06-11 19:19:48,350 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 19:19:48,354 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:48,354 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:48,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:48,354 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 151 transitions, 1423 flow [2021-06-11 19:19:48,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:48,355 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:48,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:48,555 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:48,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1664067921, now seen corresponding path program 60 times [2021-06-11 19:19:48,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:48,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932202223] [2021-06-11 19:19:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:48,562 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,567 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:48,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:48,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:48,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:48,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:48,595 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-06-11 19:19:48,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:48,606 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-11 19:19:48,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:48,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932202223] [2021-06-11 19:19:48,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219164449] [2021-06-11 19:19:48,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:48,632 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:48,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:48,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:48,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:48,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,641 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:48,641 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:48,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,654 INFO L147 QuantifierPusher]: treesize reduction -2, result has 112.5 percent of original size 18 [2021-06-11 19:19:48,654 INFO L142 QuantifierPusher]: treesize reduction -2, result has 112.5 percent of original size [2021-06-11 19:19:48,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:48,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:48,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:48,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,667 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size 25 [2021-06-11 19:19:48,667 INFO L142 QuantifierPusher]: treesize reduction -1, result has 104.2 percent of original size [2021-06-11 19:19:48,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:48,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:48,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:48,682 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.6 percent of original size [2021-06-11 19:19:48,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:48,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:48,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:48,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:48,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:48,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:48,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,699 INFO L147 QuantifierPusher]: treesize reduction 2, result has 95.7 percent of original size 44 [2021-06-11 19:19:48,699 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.7 percent of original size [2021-06-11 19:19:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:48,722 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:48,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:48,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,726 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:48,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:48,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:48,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,728 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:48,729 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:48,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:48,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:48,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:48,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:48,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:48,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497040348] [2021-06-11 19:19:48,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:48,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:48,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:48,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:48,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 151 transitions, 1423 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:48,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:48,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:48,920 INFO L129 PetriNetUnfolder]: 75/193 cut-off events. [2021-06-11 19:19:48,920 INFO L130 PetriNetUnfolder]: For 5469/5471 co-relation queries the response was YES. [2021-06-11 19:19:48,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 193 events. 75/193 cut-off events. For 5469/5471 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 944 event pairs, 0 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 1337. Up to 159 conditions per place. [2021-06-11 19:19:48,922 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 135 selfloop transitions, 13 changer transitions 1/153 dead transitions. [2021-06-11 19:19:48,922 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 153 transitions, 1829 flow [2021-06-11 19:19:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2021-06-11 19:19:48,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4365079365079365 [2021-06-11 19:19:48,923 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 110 transitions. [2021-06-11 19:19:48,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 110 transitions. [2021-06-11 19:19:48,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:48,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 110 transitions. [2021-06-11 19:19:48,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 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) [2021-06-11 19:19:48,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,923 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,924 INFO L185 Difference]: Start difference. First operand has 207 places, 151 transitions, 1423 flow. Second operand 9 states and 110 transitions. [2021-06-11 19:19:48,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 153 transitions, 1829 flow [2021-06-11 19:19:48,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 153 transitions, 1709 flow, removed 49 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:48,942 INFO L241 Difference]: Finished difference. Result has 211 places, 152 transitions, 1389 flow [2021-06-11 19:19:48,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1305, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1389, PETRI_PLACES=211, PETRI_TRANSITIONS=152} [2021-06-11 19:19:48,943 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 196 predicate places. [2021-06-11 19:19:48,943 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:48,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 152 transitions, 1389 flow [2021-06-11 19:19:48,943 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 152 transitions, 1389 flow [2021-06-11 19:19:48,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 152 transitions, 1389 flow [2021-06-11 19:19:48,957 INFO L129 PetriNetUnfolder]: 73/189 cut-off events. [2021-06-11 19:19:48,957 INFO L130 PetriNetUnfolder]: For 3848/3848 co-relation queries the response was YES. [2021-06-11 19:19:48,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 189 events. 73/189 cut-off events. For 3848/3848 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 947 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 1040. Up to 30 conditions per place. [2021-06-11 19:19:48,958 INFO L151 LiptonReduction]: Number of co-enabled transitions 78 [2021-06-11 19:19:48,963 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:48,963 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:48,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-06-11 19:19:48,963 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 152 transitions, 1389 flow [2021-06-11 19:19:48,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:48,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:48,963 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:49,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-06-11 19:19:49,164 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:49,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1639162645, now seen corresponding path program 61 times [2021-06-11 19:19:49,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:49,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146653623] [2021-06-11 19:19:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:49,185 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:49,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:49,189 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:49,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:49,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:49,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:49,218 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:49,229 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:49,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:49,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146653623] [2021-06-11 19:19:49,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280758760] [2021-06-11 19:19:49,238 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:49,256 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:49,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:49,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:49,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,273 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:49,273 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:49,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:49,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:49,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:49,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,290 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-06-11 19:19:49,290 INFO L142 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size [2021-06-11 19:19:49,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:49,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:49,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:49,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,307 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size 32 [2021-06-11 19:19:49,307 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-06-11 19:19:49,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:49,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:49,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:49,325 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.2 percent of original size [2021-06-11 19:19:49,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 19:19:49,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,326 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:49,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:49,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:49,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:49,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:49,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,346 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-06-11 19:19:49,346 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size [2021-06-11 19:19:49,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:49,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:49,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:49,369 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:49,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:49,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:49,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:49,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:49,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:49,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:49,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 19:19:49,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739652467] [2021-06-11 19:19:49,411 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 19:19:49,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:49,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 19:19:49,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-06-11 19:19:49,411 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:49,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 152 transitions, 1389 flow. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:49,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:49,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:49,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:49,683 INFO L129 PetriNetUnfolder]: 75/198 cut-off events. [2021-06-11 19:19:49,683 INFO L130 PetriNetUnfolder]: For 5118/5118 co-relation queries the response was YES. [2021-06-11 19:19:49,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 198 events. 75/198 cut-off events. For 5118/5118 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 965 event pairs, 1 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 1356. Up to 159 conditions per place. [2021-06-11 19:19:49,685 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 136 selfloop transitions, 10 changer transitions 6/156 dead transitions. [2021-06-11 19:19:49,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 156 transitions, 1869 flow [2021-06-11 19:19:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 19:19:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 19:19:49,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 133 transitions. [2021-06-11 19:19:49,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4318181818181818 [2021-06-11 19:19:49,686 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 133 transitions. [2021-06-11 19:19:49,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 133 transitions. [2021-06-11 19:19:49,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:49,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 133 transitions. [2021-06-11 19:19:49,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.090909090909092) internal successors, (133), 11 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:49,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:49,686 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 28.0) internal successors, (336), 12 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) [2021-06-11 19:19:49,687 INFO L185 Difference]: Start difference. First operand has 210 places, 152 transitions, 1389 flow. Second operand 11 states and 133 transitions. [2021-06-11 19:19:49,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 156 transitions, 1869 flow [2021-06-11 19:19:49,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 156 transitions, 1793 flow, removed 26 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:49,709 INFO L241 Difference]: Finished difference. Result has 217 places, 150 transitions, 1331 flow [2021-06-11 19:19:49,710 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1331, PETRI_PLACES=217, PETRI_TRANSITIONS=150} [2021-06-11 19:19:49,710 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 202 predicate places. [2021-06-11 19:19:49,710 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:49,710 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 150 transitions, 1331 flow [2021-06-11 19:19:49,710 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 150 transitions, 1331 flow [2021-06-11 19:19:49,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 150 transitions, 1331 flow [2021-06-11 19:19:49,723 INFO L129 PetriNetUnfolder]: 72/185 cut-off events. [2021-06-11 19:19:49,724 INFO L130 PetriNetUnfolder]: For 3556/3580 co-relation queries the response was YES. [2021-06-11 19:19:49,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 185 events. 72/185 cut-off events. For 3556/3580 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 934 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 993. Up to 27 conditions per place. [2021-06-11 19:19:49,725 INFO L151 LiptonReduction]: Number of co-enabled transitions 78 [2021-06-11 19:19:49,729 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:49,729 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:49,729 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 19:19:49,730 INFO L480 AbstractCegarLoop]: Abstraction has has 211 places, 150 transitions, 1331 flow [2021-06-11 19:19:49,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:49,730 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:49,730 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:49,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-06-11 19:19:49,938 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:49,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:49,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1723173265, now seen corresponding path program 62 times [2021-06-11 19:19:49,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:49,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169660408] [2021-06-11 19:19:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:49,944 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:49,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:49,949 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:49,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:49,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:49,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:49,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:49,969 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:49,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:49,982 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:49,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:49,993 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:49,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:50,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169660408] [2021-06-11 19:19:50,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310912037] [2021-06-11 19:19:50,002 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 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:50,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:50,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:50,019 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:50,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:50,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,037 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:50,037 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:50,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:50,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:50,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:50,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,061 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-06-11 19:19:50,061 INFO L142 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size [2021-06-11 19:19:50,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,082 INFO L147 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size 32 [2021-06-11 19:19:50,082 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-06-11 19:19:50,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:50,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:50,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:50,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,100 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size 39 [2021-06-11 19:19:50,100 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-06-11 19:19:50,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:19:50,120 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-06-11 19:19:50,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:50,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:50,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:50,122 INFO L147 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size 51 [2021-06-11 19:19:50,122 INFO L142 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size [2021-06-11 19:19:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:50,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:50,142 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-06-11 19:19:50,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:19:50,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:50,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:50,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 19:19:50,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-06-11 19:19:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:50,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:50,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 19:19:50,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726408965] [2021-06-11 19:19:50,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 19:19:50,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:50,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 19:19:50,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-06-11 19:19:50,177 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:50,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 150 transitions, 1331 flow. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:50,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:50,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:50,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:50,433 INFO L129 PetriNetUnfolder]: 77/201 cut-off events. [2021-06-11 19:19:50,434 INFO L130 PetriNetUnfolder]: For 6805/6805 co-relation queries the response was YES. [2021-06-11 19:19:50,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 201 events. 77/201 cut-off events. For 6805/6805 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 996 event pairs, 1 based on Foata normal form. 1/199 useless extension candidates. Maximal degree in co-relation 1452. Up to 162 conditions per place. [2021-06-11 19:19:50,436 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 137 selfloop transitions, 15 changer transitions 1/157 dead transitions. [2021-06-11 19:19:50,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 157 transitions, 1957 flow [2021-06-11 19:19:50,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-11 19:19:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-11 19:19:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 124 transitions. [2021-06-11 19:19:50,436 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2021-06-11 19:19:50,436 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 124 transitions. [2021-06-11 19:19:50,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 124 transitions. [2021-06-11 19:19:50,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:50,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 124 transitions. [2021-06-11 19:19:50,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:50,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:50,437 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 28.0) internal successors, (308), 11 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:50,437 INFO L185 Difference]: Start difference. First operand has 211 places, 150 transitions, 1331 flow. Second operand 10 states and 124 transitions. [2021-06-11 19:19:50,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 157 transitions, 1957 flow [2021-06-11 19:19:50,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 157 transitions, 1909 flow, removed 11 selfloop flow, removed 12 redundant places. [2021-06-11 19:19:50,463 INFO L241 Difference]: Finished difference. Result has 211 places, 154 transitions, 1531 flow [2021-06-11 19:19:50,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1531, PETRI_PLACES=211, PETRI_TRANSITIONS=154} [2021-06-11 19:19:50,463 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 196 predicate places. [2021-06-11 19:19:50,463 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:50,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 154 transitions, 1531 flow [2021-06-11 19:19:50,464 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 154 transitions, 1531 flow [2021-06-11 19:19:50,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 154 transitions, 1531 flow [2021-06-11 19:19:50,478 INFO L129 PetriNetUnfolder]: 75/196 cut-off events. [2021-06-11 19:19:50,479 INFO L130 PetriNetUnfolder]: For 5523/5545 co-relation queries the response was YES. [2021-06-11 19:19:50,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 196 events. 75/196 cut-off events. For 5523/5545 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 998 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 1180. Up to 33 conditions per place. [2021-06-11 19:19:50,480 INFO L151 LiptonReduction]: Number of co-enabled transitions 80 [2021-06-11 19:19:50,487 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:50,487 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:50,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 19:19:50,487 INFO L480 AbstractCegarLoop]: Abstraction has has 210 places, 154 transitions, 1531 flow [2021-06-11 19:19:50,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:50,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:50,488 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:50,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2021-06-11 19:19:50,697 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:50,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1941358063, now seen corresponding path program 63 times [2021-06-11 19:19:50,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:50,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216257680] [2021-06-11 19:19:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:50,706 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,712 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:50,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,733 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:50,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:50,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:50,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:50,758 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:50,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:50,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216257680] [2021-06-11 19:19:50,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060518071] [2021-06-11 19:19:50,769 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 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:50,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-11 19:19:50,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:50,786 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:50,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:50,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,807 INFO L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-06-11 19:19:50,808 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-11 19:19:50,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:50,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:50,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:50,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,831 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size 30 [2021-06-11 19:19:50,832 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-06-11 19:19:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,848 INFO L147 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size 24 [2021-06-11 19:19:50,848 INFO L142 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size [2021-06-11 19:19:50,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:50,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,867 INFO L147 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size 27 [2021-06-11 19:19:50,867 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-06-11 19:19:50,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:50,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:50,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:50,886 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-06-11 19:19:50,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:50,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,888 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:50,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:50,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:50,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:50,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:50,912 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:50,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:19:50,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:50,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:50,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:50,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:50,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:50,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:50,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64546722] [2021-06-11 19:19:50,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:50,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:50,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:50,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:50,941 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:50,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 154 transitions, 1531 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:50,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:50,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:50,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:51,225 INFO L129 PetriNetUnfolder]: 80/212 cut-off events. [2021-06-11 19:19:51,225 INFO L130 PetriNetUnfolder]: For 8783/8783 co-relation queries the response was YES. [2021-06-11 19:19:51,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1764 conditions, 212 events. 80/212 cut-off events. For 8783/8783 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1065 event pairs, 1 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 1649. Up to 166 conditions per place. [2021-06-11 19:19:51,227 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 135 selfloop transitions, 21 changer transitions 1/161 dead transitions. [2021-06-11 19:19:51,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 161 transitions, 2169 flow [2021-06-11 19:19:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:51,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2021-06-11 19:19:51,245 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2021-06-11 19:19:51,245 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 150 transitions. [2021-06-11 19:19:51,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 150 transitions. [2021-06-11 19:19:51,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:51,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 150 transitions. [2021-06-11 19:19:51,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 12.5) internal successors, (150), 12 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) [2021-06-11 19:19:51,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:51,246 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:51,246 INFO L185 Difference]: Start difference. First operand has 210 places, 154 transitions, 1531 flow. Second operand 12 states and 150 transitions. [2021-06-11 19:19:51,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 161 transitions, 2169 flow [2021-06-11 19:19:51,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 161 transitions, 1998 flow, removed 78 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:51,305 INFO L241 Difference]: Finished difference. Result has 218 places, 158 transitions, 1620 flow [2021-06-11 19:19:51,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1362, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1620, PETRI_PLACES=218, PETRI_TRANSITIONS=158} [2021-06-11 19:19:51,305 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 203 predicate places. [2021-06-11 19:19:51,305 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:51,305 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 158 transitions, 1620 flow [2021-06-11 19:19:51,305 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 158 transitions, 1620 flow [2021-06-11 19:19:51,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 217 places, 158 transitions, 1620 flow [2021-06-11 19:19:51,338 INFO L129 PetriNetUnfolder]: 78/207 cut-off events. [2021-06-11 19:19:51,338 INFO L130 PetriNetUnfolder]: For 6501/6523 co-relation queries the response was YES. [2021-06-11 19:19:51,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 207 events. 78/207 cut-off events. For 6501/6523 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1093 event pairs, 0 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 1283. Up to 33 conditions per place. [2021-06-11 19:19:51,340 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:51,345 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:51,345 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:51,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-06-11 19:19:51,345 INFO L480 AbstractCegarLoop]: Abstraction has has 217 places, 158 transitions, 1620 flow [2021-06-11 19:19:51,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:51,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:51,346 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:51,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:51,561 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:51,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1942251793, now seen corresponding path program 64 times [2021-06-11 19:19:51,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:51,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569865155] [2021-06-11 19:19:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:51,581 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:51,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,587 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:51,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:51,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:51,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:51,620 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:51,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:51,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:51,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:51,645 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:51,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:51,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569865155] [2021-06-11 19:19:51,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400923066] [2021-06-11 19:19:51,655 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:51,671 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:51,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:51,672 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:51,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:51,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,681 INFO L147 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size 15 [2021-06-11 19:19:51,681 INFO L142 QuantifierPusher]: treesize reduction 2, result has 88.2 percent of original size [2021-06-11 19:19:51,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:51,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:51,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:19:51,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,693 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size 26 [2021-06-11 19:19:51,694 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:51,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:51,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:51,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,710 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-06-11 19:19:51,710 INFO L142 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size [2021-06-11 19:19:51,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,728 INFO L147 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size 27 [2021-06-11 19:19:51,728 INFO L142 QuantifierPusher]: treesize reduction 8, result has 77.1 percent of original size [2021-06-11 19:19:51,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:51,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:51,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:51,748 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-06-11 19:19:51,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:51,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:51,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:51,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:51,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:51,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:51,769 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:51,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:51,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:51,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:51,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:51,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:51,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:51,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:51,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652155439] [2021-06-11 19:19:51,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:51,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:51,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:51,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:51,799 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:51,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 158 transitions, 1620 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:51,799 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:51,799 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:51,799 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:52,056 INFO L129 PetriNetUnfolder]: 80/209 cut-off events. [2021-06-11 19:19:52,056 INFO L130 PetriNetUnfolder]: For 7545/7545 co-relation queries the response was YES. [2021-06-11 19:19:52,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 209 events. 80/209 cut-off events. For 7545/7545 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1058 event pairs, 1 based on Foata normal form. 1/208 useless extension candidates. Maximal degree in co-relation 1544. Up to 166 conditions per place. [2021-06-11 19:19:52,059 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 132 selfloop transitions, 24 changer transitions 1/161 dead transitions. [2021-06-11 19:19:52,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 161 transitions, 2095 flow [2021-06-11 19:19:52,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-11 19:19:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-11 19:19:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 171 transitions. [2021-06-11 19:19:52,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4362244897959184 [2021-06-11 19:19:52,060 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 171 transitions. [2021-06-11 19:19:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 171 transitions. [2021-06-11 19:19:52,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:52,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 171 transitions. [2021-06-11 19:19:52,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 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) [2021-06-11 19:19:52,061 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 28.0) internal successors, (420), 15 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) [2021-06-11 19:19:52,061 INFO L185 Difference]: Start difference. First operand has 217 places, 158 transitions, 1620 flow. Second operand 14 states and 171 transitions. [2021-06-11 19:19:52,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 161 transitions, 2095 flow [2021-06-11 19:19:52,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 161 transitions, 1817 flow, removed 123 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:52,090 INFO L241 Difference]: Finished difference. Result has 224 places, 160 transitions, 1558 flow [2021-06-11 19:19:52,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1558, PETRI_PLACES=224, PETRI_TRANSITIONS=160} [2021-06-11 19:19:52,090 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 209 predicate places. [2021-06-11 19:19:52,090 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:52,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 160 transitions, 1558 flow [2021-06-11 19:19:52,091 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 160 transitions, 1558 flow [2021-06-11 19:19:52,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 160 transitions, 1558 flow [2021-06-11 19:19:52,106 INFO L129 PetriNetUnfolder]: 78/203 cut-off events. [2021-06-11 19:19:52,106 INFO L130 PetriNetUnfolder]: For 5067/5093 co-relation queries the response was YES. [2021-06-11 19:19:52,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1285 conditions, 203 events. 78/203 cut-off events. For 5067/5093 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1071 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 1172. Up to 28 conditions per place. [2021-06-11 19:19:52,108 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:52,113 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:52,113 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:52,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 19:19:52,114 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 160 transitions, 1558 flow [2021-06-11 19:19:52,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:52,114 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:52,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:52,325 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:52,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:52,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1910852079, now seen corresponding path program 65 times [2021-06-11 19:19:52,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:52,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230790903] [2021-06-11 19:19:52,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:52,330 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:52,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,335 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:52,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:52,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:52,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:52,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:52,363 INFO L142 QuantifierPusher]: treesize reduction 10, result has 67.7 percent of original size [2021-06-11 19:19:52,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:52,374 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-11 19:19:52,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:52,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230790903] [2021-06-11 19:19:52,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667840424] [2021-06-11 19:19:52,383 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:52,399 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:52,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:52,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:52,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:52,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,408 INFO L147 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size 16 [2021-06-11 19:19:52,408 INFO L142 QuantifierPusher]: treesize reduction -1, result has 106.7 percent of original size [2021-06-11 19:19:52,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:52,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:52,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:52,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,421 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:52,421 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:52,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:52,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:52,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:52,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,435 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 37 [2021-06-11 19:19:52,435 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-06-11 19:19:52,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:52,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:52,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:52,452 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.6 percent of original size [2021-06-11 19:19:52,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:19:52,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:52,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:52,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:52,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:52,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,473 INFO L147 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size 46 [2021-06-11 19:19:52,473 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.9 percent of original size [2021-06-11 19:19:52,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,495 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:52,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:52,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:52,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:52,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:52,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,499 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:52,499 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:52,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:52,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:52,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:52,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:52,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423911340] [2021-06-11 19:19:52,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:52,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:52,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:52,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:52,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:52,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 160 transitions, 1558 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:52,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:52,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:52,651 INFO L129 PetriNetUnfolder]: 80/205 cut-off events. [2021-06-11 19:19:52,651 INFO L130 PetriNetUnfolder]: For 6277/6277 co-relation queries the response was YES. [2021-06-11 19:19:52,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1548 conditions, 205 events. 80/205 cut-off events. For 6277/6277 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1019 event pairs, 1 based on Foata normal form. 1/204 useless extension candidates. Maximal degree in co-relation 1434. Up to 170 conditions per place. [2021-06-11 19:19:52,653 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 145 selfloop transitions, 12 changer transitions 1/162 dead transitions. [2021-06-11 19:19:52,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 162 transitions, 1887 flow [2021-06-11 19:19:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 109 transitions. [2021-06-11 19:19:52,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43253968253968256 [2021-06-11 19:19:52,654 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 109 transitions. [2021-06-11 19:19:52,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 109 transitions. [2021-06-11 19:19:52,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:52,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 109 transitions. [2021-06-11 19:19:52,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,654 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,654 INFO L185 Difference]: Start difference. First operand has 223 places, 160 transitions, 1558 flow. Second operand 9 states and 109 transitions. [2021-06-11 19:19:52,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 162 transitions, 1887 flow [2021-06-11 19:19:52,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 162 transitions, 1738 flow, removed 54 selfloop flow, removed 11 redundant places. [2021-06-11 19:19:52,680 INFO L241 Difference]: Finished difference. Result has 222 places, 161 transitions, 1446 flow [2021-06-11 19:19:52,680 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1409, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1446, PETRI_PLACES=222, PETRI_TRANSITIONS=161} [2021-06-11 19:19:52,680 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 207 predicate places. [2021-06-11 19:19:52,680 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:52,680 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 161 transitions, 1446 flow [2021-06-11 19:19:52,680 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 161 transitions, 1446 flow [2021-06-11 19:19:52,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 221 places, 161 transitions, 1446 flow [2021-06-11 19:19:52,695 INFO L129 PetriNetUnfolder]: 78/199 cut-off events. [2021-06-11 19:19:52,696 INFO L130 PetriNetUnfolder]: For 4476/4498 co-relation queries the response was YES. [2021-06-11 19:19:52,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 199 events. 78/199 cut-off events. For 4476/4498 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1031 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 1103. Up to 27 conditions per place. [2021-06-11 19:19:52,697 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:52,702 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:52,702 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:52,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 19:19:52,702 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 161 transitions, 1446 flow [2021-06-11 19:19:52,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:52,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:52,703 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:52,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:52,903 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1722279535, now seen corresponding path program 66 times [2021-06-11 19:19:52,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:52,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679442535] [2021-06-11 19:19:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:52,909 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-06-11 19:19:52,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:52,914 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-06-11 19:19:52,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:52,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:52,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:52,934 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:52,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:52,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-11 19:19:52,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:52,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:52,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:52,967 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:52,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679442535] [2021-06-11 19:19:52,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510608571] [2021-06-11 19:19:52,967 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:52,984 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-06-11 19:19:52,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:52,984 WARN L261 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-11 19:19:52,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:52,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:52,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:52,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:53,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,003 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:53,003 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:53,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:53,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:53,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:53,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:53,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:53,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:53,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:19:53,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,034 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size 18 [2021-06-11 19:19:53,035 INFO L142 QuantifierPusher]: treesize reduction 4, result has 81.8 percent of original size [2021-06-11 19:19:53,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:53,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:53,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:53,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,051 INFO L147 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size 21 [2021-06-11 19:19:53,051 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-06-11 19:19:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:53,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:53,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:53,069 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:53,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:53,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,071 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:53,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:53,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:53,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:53,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:53,094 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-06-11 19:19:53,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:53,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,095 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:53,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:53,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:53,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:53,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2021-06-11 19:19:53,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749601572] [2021-06-11 19:19:53,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-11 19:19:53,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-11 19:19:53,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-06-11 19:19:53,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:53,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 161 transitions, 1446 flow. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:53,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:53,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:53,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:53,357 INFO L129 PetriNetUnfolder]: 80/201 cut-off events. [2021-06-11 19:19:53,357 INFO L130 PetriNetUnfolder]: For 5536/5536 co-relation queries the response was YES. [2021-06-11 19:19:53,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 201 events. 80/201 cut-off events. For 5536/5536 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1005 event pairs, 1 based on Foata normal form. 1/199 useless extension candidates. Maximal degree in co-relation 1362. Up to 166 conditions per place. [2021-06-11 19:19:53,359 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 144 selfloop transitions, 15 changer transitions 1/164 dead transitions. [2021-06-11 19:19:53,359 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 164 transitions, 1845 flow [2021-06-11 19:19:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:53,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2021-06-11 19:19:53,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2021-06-11 19:19:53,360 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 112 transitions. [2021-06-11 19:19:53,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 112 transitions. [2021-06-11 19:19:53,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:53,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 112 transitions. [2021-06-11 19:19:53,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2021-06-11 19:19:53,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:53,361 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:53,361 INFO L185 Difference]: Start difference. First operand has 221 places, 161 transitions, 1446 flow. Second operand 9 states and 112 transitions. [2021-06-11 19:19:53,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 164 transitions, 1845 flow [2021-06-11 19:19:53,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 164 transitions, 1819 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:53,384 INFO L241 Difference]: Finished difference. Result has 225 places, 163 transitions, 1536 flow [2021-06-11 19:19:53,384 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1420, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1536, PETRI_PLACES=225, PETRI_TRANSITIONS=163} [2021-06-11 19:19:53,384 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 210 predicate places. [2021-06-11 19:19:53,384 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:53,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 163 transitions, 1536 flow [2021-06-11 19:19:53,384 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 163 transitions, 1536 flow [2021-06-11 19:19:53,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 163 transitions, 1536 flow [2021-06-11 19:19:53,399 INFO L129 PetriNetUnfolder]: 78/195 cut-off events. [2021-06-11 19:19:53,399 INFO L130 PetriNetUnfolder]: For 4512/4538 co-relation queries the response was YES. [2021-06-11 19:19:53,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 195 events. 78/195 cut-off events. For 4512/4538 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1003 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 1110. Up to 27 conditions per place. [2021-06-11 19:19:53,401 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:53,405 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:53,406 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:53,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 19:19:53,406 INFO L480 AbstractCegarLoop]: Abstraction has has 224 places, 163 transitions, 1536 flow [2021-06-11 19:19:53,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 16 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) [2021-06-11 19:19:53,406 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:53,406 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:53,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-06-11 19:19:53,607 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:53,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1608656661, now seen corresponding path program 67 times [2021-06-11 19:19:53,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:53,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961500671] [2021-06-11 19:19:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:53,613 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,618 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:53,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:53,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:53,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:53,639 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:53,652 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:53,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:53,664 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:53,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:53,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961500671] [2021-06-11 19:19:53,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908491303] [2021-06-11 19:19:53,674 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:53,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:53,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:53,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:53,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,699 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:53,699 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:53,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:53,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:53,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:53,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,711 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-06-11 19:19:53,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-11 19:19:53,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:53,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:53,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:53,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,728 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size 31 [2021-06-11 19:19:53,728 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-06-11 19:19:53,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:53,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:53,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:53,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,744 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:19:53,744 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:19:53,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:53,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:53,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:53,762 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:53,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:53,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:53,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:53,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 19:19:53,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,787 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.3 percent of original size [2021-06-11 19:19:53,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 19:19:53,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,788 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:53,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:19:53,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:19:53,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,790 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:19:53,791 INFO L142 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size [2021-06-11 19:19:53,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-06-11 19:19:53,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:53,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:53,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:53,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:53,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795297275] [2021-06-11 19:19:53,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:53,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:53,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:53,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:53,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 163 transitions, 1536 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:53,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:53,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:53,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:54,013 INFO L129 PetriNetUnfolder]: 83/211 cut-off events. [2021-06-11 19:19:54,013 INFO L130 PetriNetUnfolder]: For 8189/8189 co-relation queries the response was YES. [2021-06-11 19:19:54,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 211 events. 83/211 cut-off events. For 8189/8189 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1081 event pairs, 1 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 1596. Up to 171 conditions per place. [2021-06-11 19:19:54,015 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 150 selfloop transitions, 15 changer transitions 1/170 dead transitions. [2021-06-11 19:19:54,015 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 170 transitions, 2204 flow [2021-06-11 19:19:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-06-11 19:19:54,016 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.44841269841269843 [2021-06-11 19:19:54,016 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-06-11 19:19:54,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-06-11 19:19:54,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:54,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-06-11 19:19:54,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 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) [2021-06-11 19:19:54,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,017 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,017 INFO L185 Difference]: Start difference. First operand has 224 places, 163 transitions, 1536 flow. Second operand 9 states and 113 transitions. [2021-06-11 19:19:54,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 170 transitions, 2204 flow [2021-06-11 19:19:54,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 170 transitions, 2067 flow, removed 57 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:54,050 INFO L241 Difference]: Finished difference. Result has 229 places, 167 transitions, 1657 flow [2021-06-11 19:19:54,050 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1405, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1657, PETRI_PLACES=229, PETRI_TRANSITIONS=167} [2021-06-11 19:19:54,050 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 214 predicate places. [2021-06-11 19:19:54,051 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:54,051 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 167 transitions, 1657 flow [2021-06-11 19:19:54,051 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 167 transitions, 1657 flow [2021-06-11 19:19:54,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 167 transitions, 1657 flow [2021-06-11 19:19:54,067 INFO L129 PetriNetUnfolder]: 81/206 cut-off events. [2021-06-11 19:19:54,067 INFO L130 PetriNetUnfolder]: For 6041/6070 co-relation queries the response was YES. [2021-06-11 19:19:54,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 206 events. 81/206 cut-off events. For 6041/6070 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1090 event pairs, 1 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 1264. Up to 33 conditions per place. [2021-06-11 19:19:54,069 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:54,074 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:54,074 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:54,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 19:19:54,075 INFO L480 AbstractCegarLoop]: Abstraction has has 228 places, 167 transitions, 1657 flow [2021-06-11 19:19:54,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:54,075 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:54,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:54,282 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:54,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:54,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1607762931, now seen corresponding path program 68 times [2021-06-11 19:19:54,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:54,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303022502] [2021-06-11 19:19:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:54,290 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-06-11 19:19:54,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,295 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.7 percent of original size [2021-06-11 19:19:54,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:54,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:54,316 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:54,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:54,329 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:54,341 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:54,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:54,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303022502] [2021-06-11 19:19:54,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303984101] [2021-06-11 19:19:54,350 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 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:54,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:54,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:54,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-11 19:19:54,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:54,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-11 19:19:54,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,374 INFO L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-06-11 19:19:54,374 INFO L142 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-06-11 19:19:54,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:54,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:54,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:19:54,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,386 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-06-11 19:19:54,386 INFO L142 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size [2021-06-11 19:19:54,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:54,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:54,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:54,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,398 INFO L147 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size 25 [2021-06-11 19:19:54,399 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.2 percent of original size [2021-06-11 19:19:54,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:54,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:54,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:54,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,414 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-06-11 19:19:54,415 INFO L142 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-06-11 19:19:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:54,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:54,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 19:19:54,432 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-06-11 19:19:54,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:19:54,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:54,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:54,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:19:54,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:54,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-06-11 19:19:54,467 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.8 percent of original size [2021-06-11 19:19:54,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:19:54,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:54,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:19:54,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-06-11 19:19:54,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,471 INFO L147 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size 119 [2021-06-11 19:19:54,472 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.5 percent of original size [2021-06-11 19:19:54,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-06-11 19:19:54,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:54,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:54,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:54,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-06-11 19:19:54,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983751290] [2021-06-11 19:19:54,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-11 19:19:54,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:54,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-11 19:19:54,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-06-11 19:19:54,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:54,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 167 transitions, 1657 flow. Second operand has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:54,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:54,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:54,691 INFO L129 PetriNetUnfolder]: 82/207 cut-off events. [2021-06-11 19:19:54,692 INFO L130 PetriNetUnfolder]: For 7417/7419 co-relation queries the response was YES. [2021-06-11 19:19:54,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 207 events. 82/207 cut-off events. For 7417/7419 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1055 event pairs, 0 based on Foata normal form. 3/206 useless extension candidates. Maximal degree in co-relation 1531. Up to 171 conditions per place. [2021-06-11 19:19:54,694 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 149 selfloop transitions, 16 changer transitions 1/170 dead transitions. [2021-06-11 19:19:54,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 170 transitions, 2156 flow [2021-06-11 19:19:54,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 19:19:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 19:19:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 112 transitions. [2021-06-11 19:19:54,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2021-06-11 19:19:54,695 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 112 transitions. [2021-06-11 19:19:54,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 112 transitions. [2021-06-11 19:19:54,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:54,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 112 transitions. [2021-06-11 19:19:54,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 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) [2021-06-11 19:19:54,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,696 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 28.0) internal successors, (280), 10 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,696 INFO L185 Difference]: Start difference. First operand has 228 places, 167 transitions, 1657 flow. Second operand 9 states and 112 transitions. [2021-06-11 19:19:54,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 170 transitions, 2156 flow [2021-06-11 19:19:54,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 170 transitions, 1895 flow, removed 124 selfloop flow, removed 5 redundant places. [2021-06-11 19:19:54,724 INFO L241 Difference]: Finished difference. Result has 234 places, 169 transitions, 1604 flow [2021-06-11 19:19:54,725 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1480, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1604, PETRI_PLACES=234, PETRI_TRANSITIONS=169} [2021-06-11 19:19:54,725 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 219 predicate places. [2021-06-11 19:19:54,725 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:54,725 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 169 transitions, 1604 flow [2021-06-11 19:19:54,725 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 169 transitions, 1604 flow [2021-06-11 19:19:54,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 169 transitions, 1604 flow [2021-06-11 19:19:54,747 INFO L129 PetriNetUnfolder]: 81/202 cut-off events. [2021-06-11 19:19:54,747 INFO L130 PetriNetUnfolder]: For 4682/4711 co-relation queries the response was YES. [2021-06-11 19:19:54,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 202 events. 81/202 cut-off events. For 4682/4711 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1050 event pairs, 1 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 1158. Up to 27 conditions per place. [2021-06-11 19:19:54,749 INFO L151 LiptonReduction]: Number of co-enabled transitions 84 [2021-06-11 19:19:54,754 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:54,754 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:54,754 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 19:19:54,754 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 169 transitions, 1604 flow [2021-06-11 19:19:54,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 11.0) internal successors, (165), 15 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:54,755 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:54,755 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:54,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:54,969 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:54,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2090982289, now seen corresponding path program 69 times [2021-06-11 19:19:54,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:54,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3602393] [2021-06-11 19:19:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:54,976 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:54,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:54,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:54,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:54,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:54,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:55,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:55,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:55,020 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:55,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,034 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:55,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:55,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3602393] [2021-06-11 19:19:55,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652780472] [2021-06-11 19:19:55,046 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 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:55,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-11 19:19:55,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:55,064 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:55,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:55,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,071 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-06-11 19:19:55,071 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:55,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,086 INFO L147 QuantifierPusher]: treesize reduction 6, result has 80.0 percent of original size 24 [2021-06-11 19:19:55,086 INFO L142 QuantifierPusher]: treesize reduction 6, result has 80.0 percent of original size [2021-06-11 19:19:55,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,104 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.4 percent of original size [2021-06-11 19:19:55,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:55,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:55,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:55,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:55,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:55,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,130 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:55,131 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:55,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:55,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:55,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,148 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:55,148 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:55,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:55,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:55,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:55,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:55,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:55,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:55,190 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:55,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:55,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:55,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:55,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:55,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:55,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:55,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:55,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421347464] [2021-06-11 19:19:55,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:55,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:55,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:55,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:55,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:55,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 169 transitions, 1604 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:55,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:55,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:55,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:55,533 INFO L129 PetriNetUnfolder]: 83/211 cut-off events. [2021-06-11 19:19:55,533 INFO L130 PetriNetUnfolder]: For 7096/7096 co-relation queries the response was YES. [2021-06-11 19:19:55,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 211 events. 83/211 cut-off events. For 7096/7096 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1085 event pairs, 1 based on Foata normal form. 2/209 useless extension candidates. Maximal degree in co-relation 1555. Up to 173 conditions per place. [2021-06-11 19:19:55,535 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 154 selfloop transitions, 7 changer transitions 8/173 dead transitions. [2021-06-11 19:19:55,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 173 transitions, 2186 flow [2021-06-11 19:19:55,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 19:19:55,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 19:19:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 142 transitions. [2021-06-11 19:19:55,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2021-06-11 19:19:55,537 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 142 transitions. [2021-06-11 19:19:55,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 142 transitions. [2021-06-11 19:19:55,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:55,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 142 transitions. [2021-06-11 19:19:55,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 11.833333333333334) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:55,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:55,538 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 28.0) internal successors, (364), 13 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:55,538 INFO L185 Difference]: Start difference. First operand has 233 places, 169 transitions, 1604 flow. Second operand 12 states and 142 transitions. [2021-06-11 19:19:55,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 173 transitions, 2186 flow [2021-06-11 19:19:55,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 173 transitions, 2051 flow, removed 56 selfloop flow, removed 6 redundant places. [2021-06-11 19:19:55,570 INFO L241 Difference]: Finished difference. Result has 242 places, 165 transitions, 1461 flow [2021-06-11 19:19:55,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1473, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1461, PETRI_PLACES=242, PETRI_TRANSITIONS=165} [2021-06-11 19:19:55,570 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 227 predicate places. [2021-06-11 19:19:55,570 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:55,570 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 165 transitions, 1461 flow [2021-06-11 19:19:55,570 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 165 transitions, 1461 flow [2021-06-11 19:19:55,571 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 165 transitions, 1461 flow [2021-06-11 19:19:55,586 INFO L129 PetriNetUnfolder]: 80/197 cut-off events. [2021-06-11 19:19:55,586 INFO L130 PetriNetUnfolder]: For 4269/4298 co-relation queries the response was YES. [2021-06-11 19:19:55,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 197 events. 80/197 cut-off events. For 4269/4298 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1020 event pairs, 1 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 1086. Up to 27 conditions per place. [2021-06-11 19:19:55,588 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 19:19:55,593 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:55,593 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:55,593 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 19:19:55,593 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 165 transitions, 1461 flow [2021-06-11 19:19:55,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:55,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:55,593 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:55,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-06-11 19:19:55,808 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2077314739, now seen corresponding path program 70 times [2021-06-11 19:19:55,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:55,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426226839] [2021-06-11 19:19:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:55,814 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:55,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:55,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:55,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:55,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:55,848 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:55,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:55,862 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:55,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:55,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:55,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426226839] [2021-06-11 19:19:55,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095702026] [2021-06-11 19:19:55,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:55,900 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:19:55,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:55,901 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:55,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:55,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:55,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,907 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-06-11 19:19:55,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:55,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:55,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,937 INFO L147 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size 25 [2021-06-11 19:19:55,938 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-06-11 19:19:55,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:19:55,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,953 INFO L147 QuantifierPusher]: treesize reduction 5, result has 85.7 percent of original size 30 [2021-06-11 19:19:55,953 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.7 percent of original size [2021-06-11 19:19:55,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:55,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:55,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:55,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,970 INFO L147 QuantifierPusher]: treesize reduction 11, result has 67.6 percent of original size 23 [2021-06-11 19:19:55,971 INFO L142 QuantifierPusher]: treesize reduction 11, result has 67.6 percent of original size [2021-06-11 19:19:55,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:55,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:55,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:55,996 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:55,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:55,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,997 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:55,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:55,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:55,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:55,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:55,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:56,022 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.8 percent of original size [2021-06-11 19:19:56,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:56,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,024 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:56,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:56,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:56,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:56,053 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:56,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:56,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:56,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706193005] [2021-06-11 19:19:56,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:56,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:56,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:56,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:56,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:56,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 165 transitions, 1461 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:56,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:56,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:56,280 INFO L129 PetriNetUnfolder]: 85/213 cut-off events. [2021-06-11 19:19:56,280 INFO L130 PetriNetUnfolder]: For 8583/8585 co-relation queries the response was YES. [2021-06-11 19:19:56,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 213 events. 85/213 cut-off events. For 8583/8585 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1071 event pairs, 1 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 1591. Up to 163 conditions per place. [2021-06-11 19:19:56,283 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 139 selfloop transitions, 28 changer transitions 1/172 dead transitions. [2021-06-11 19:19:56,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 172 transitions, 2155 flow [2021-06-11 19:19:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 165 transitions. [2021-06-11 19:19:56,284 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4532967032967033 [2021-06-11 19:19:56,284 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 165 transitions. [2021-06-11 19:19:56,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 165 transitions. [2021-06-11 19:19:56,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:56,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 165 transitions. [2021-06-11 19:19:56,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,284 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,284 INFO L185 Difference]: Start difference. First operand has 232 places, 165 transitions, 1461 flow. Second operand 13 states and 165 transitions. [2021-06-11 19:19:56,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 172 transitions, 2155 flow [2021-06-11 19:19:56,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 172 transitions, 2105 flow, removed 18 selfloop flow, removed 9 redundant places. [2021-06-11 19:19:56,317 INFO L241 Difference]: Finished difference. Result has 238 places, 169 transitions, 1712 flow [2021-06-11 19:19:56,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1427, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1712, PETRI_PLACES=238, PETRI_TRANSITIONS=169} [2021-06-11 19:19:56,317 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 223 predicate places. [2021-06-11 19:19:56,317 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:56,317 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 169 transitions, 1712 flow [2021-06-11 19:19:56,317 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 169 transitions, 1712 flow [2021-06-11 19:19:56,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 237 places, 169 transitions, 1712 flow [2021-06-11 19:19:56,334 INFO L129 PetriNetUnfolder]: 83/208 cut-off events. [2021-06-11 19:19:56,334 INFO L130 PetriNetUnfolder]: For 6600/6622 co-relation queries the response was YES. [2021-06-11 19:19:56,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 208 events. 83/208 cut-off events. For 6600/6622 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1054 event pairs, 1 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 1305. Up to 33 conditions per place. [2021-06-11 19:19:56,336 INFO L151 LiptonReduction]: Number of co-enabled transitions 78 [2021-06-11 19:19:56,342 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:56,342 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:56,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 19:19:56,342 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 169 transitions, 1712 flow [2021-06-11 19:19:56,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:56,342 INFO L263 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:56,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-06-11 19:19:56,561 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:56,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:56,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1407649481, now seen corresponding path program 71 times [2021-06-11 19:19:56,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:56,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380373958] [2021-06-11 19:19:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:56,580 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:56,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:56,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:56,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:56,632 INFO L142 QuantifierPusher]: treesize reduction 5, result has 85.3 percent of original size [2021-06-11 19:19:56,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:56,647 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:19:56,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:56,661 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:56,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:56,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380373958] [2021-06-11 19:19:56,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120970449] [2021-06-11 19:19:56,672 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:56,703 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-11 19:19:56,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:56,704 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:56,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:56,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:56,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:56,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:56,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:56,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:56,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,740 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-06-11 19:19:56,740 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-06-11 19:19:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,756 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-06-11 19:19:56,756 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-06-11 19:19:56,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:56,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:56,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:56,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:56,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:56,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,813 INFO L147 QuantifierPusher]: treesize reduction 8, result has 72.4 percent of original size 21 [2021-06-11 19:19:56,814 INFO L142 QuantifierPusher]: treesize reduction 8, result has 72.4 percent of original size [2021-06-11 19:19:56,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:56,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:56,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:56,848 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.0 percent of original size [2021-06-11 19:19:56,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:56,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,849 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:56,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:56,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:56,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:56,873 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:56,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:56,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:56,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:56,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:56,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:19:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:56,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:56,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:56,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96861949] [2021-06-11 19:19:56,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:56,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:56,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:56,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:56,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:56,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 169 transitions, 1712 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:56,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:56,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:56,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:57,188 INFO L129 PetriNetUnfolder]: 87/223 cut-off events. [2021-06-11 19:19:57,189 INFO L130 PetriNetUnfolder]: For 10831/10831 co-relation queries the response was YES. [2021-06-11 19:19:57,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 223 events. 87/223 cut-off events. For 10831/10831 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1144 event pairs, 0 based on Foata normal form. 1/220 useless extension candidates. Maximal degree in co-relation 1817. Up to 165 conditions per place. [2021-06-11 19:19:57,191 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 132 selfloop transitions, 39 changer transitions 1/176 dead transitions. [2021-06-11 19:19:57,191 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 176 transitions, 2412 flow [2021-06-11 19:19:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:57,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 166 transitions. [2021-06-11 19:19:57,192 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45604395604395603 [2021-06-11 19:19:57,192 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 166 transitions. [2021-06-11 19:19:57,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 166 transitions. [2021-06-11 19:19:57,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:57,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 166 transitions. [2021-06-11 19:19:57,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 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) [2021-06-11 19:19:57,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:57,221 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:57,221 INFO L185 Difference]: Start difference. First operand has 237 places, 169 transitions, 1712 flow. Second operand 13 states and 166 transitions. [2021-06-11 19:19:57,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 176 transitions, 2412 flow [2021-06-11 19:19:57,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 176 transitions, 2155 flow, removed 102 selfloop flow, removed 12 redundant places. [2021-06-11 19:19:57,287 INFO L241 Difference]: Finished difference. Result has 240 places, 173 transitions, 1776 flow [2021-06-11 19:19:57,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1473, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1776, PETRI_PLACES=240, PETRI_TRANSITIONS=173} [2021-06-11 19:19:57,287 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 225 predicate places. [2021-06-11 19:19:57,287 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:57,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 173 transitions, 1776 flow [2021-06-11 19:19:57,287 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 173 transitions, 1776 flow [2021-06-11 19:19:57,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 173 transitions, 1776 flow [2021-06-11 19:19:57,324 INFO L129 PetriNetUnfolder]: 86/219 cut-off events. [2021-06-11 19:19:57,324 INFO L130 PetriNetUnfolder]: For 7077/7097 co-relation queries the response was YES. [2021-06-11 19:19:57,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 219 events. 86/219 cut-off events. For 7077/7097 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1125 event pairs, 1 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 1381. Up to 33 conditions per place. [2021-06-11 19:19:57,326 INFO L151 LiptonReduction]: Number of co-enabled transitions 80 [2021-06-11 19:19:57,331 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:57,331 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:57,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-06-11 19:19:57,332 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 173 transitions, 1776 flow [2021-06-11 19:19:57,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:57,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:57,332 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:57,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:57,563 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:57,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:57,563 INFO L82 PathProgramCache]: Analyzing trace with hash -418671023, now seen corresponding path program 72 times [2021-06-11 19:19:57,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:57,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700962905] [2021-06-11 19:19:57,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:57,571 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:57,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:57,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:57,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:57,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:57,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:57,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:57,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:57,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:57,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:57,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700962905] [2021-06-11 19:19:57,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274504224] [2021-06-11 19:19:57,639 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:57,691 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2021-06-11 19:19:57,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:57,692 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:57,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:57,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,696 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:57,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,729 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:57,729 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:57,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:57,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:57,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:57,746 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-06-11 19:19:57,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:57,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,747 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:57,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 19:19:57,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:57,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:57,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:57,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,765 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size 20 [2021-06-11 19:19:57,765 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-06-11 19:19:57,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:57,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:57,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:57,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:57,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:57,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:57,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:57,806 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:57,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:57,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,807 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:57,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:57,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:57,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:57,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:57,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:57,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:57,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:57,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395172501] [2021-06-11 19:19:57,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:57,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:57,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:57,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:57,839 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:57,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 173 transitions, 1776 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:57,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:57,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:57,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:58,112 INFO L129 PetriNetUnfolder]: 88/228 cut-off events. [2021-06-11 19:19:58,112 INFO L130 PetriNetUnfolder]: For 9567/9567 co-relation queries the response was YES. [2021-06-11 19:19:58,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 228 events. 88/228 cut-off events. For 9567/9567 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1164 event pairs, 1 based on Foata normal form. 2/226 useless extension candidates. Maximal degree in co-relation 1788. Up to 184 conditions per place. [2021-06-11 19:19:58,114 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 155 selfloop transitions, 11 changer transitions 7/177 dead transitions. [2021-06-11 19:19:58,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 177 transitions, 2362 flow [2021-06-11 19:19:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 155 transitions. [2021-06-11 19:19:58,115 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4258241758241758 [2021-06-11 19:19:58,115 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 155 transitions. [2021-06-11 19:19:58,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 155 transitions. [2021-06-11 19:19:58,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:58,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 155 transitions. [2021-06-11 19:19:58,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 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) [2021-06-11 19:19:58,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:58,116 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:58,116 INFO L185 Difference]: Start difference. First operand has 239 places, 173 transitions, 1776 flow. Second operand 13 states and 155 transitions. [2021-06-11 19:19:58,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 177 transitions, 2362 flow [2021-06-11 19:19:58,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 177 transitions, 2103 flow, removed 92 selfloop flow, removed 11 redundant places. [2021-06-11 19:19:58,152 INFO L241 Difference]: Finished difference. Result has 244 places, 170 transitions, 1536 flow [2021-06-11 19:19:58,152 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=228, 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=13, PETRI_FLOW=1536, PETRI_PLACES=244, PETRI_TRANSITIONS=170} [2021-06-11 19:19:58,152 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 229 predicate places. [2021-06-11 19:19:58,152 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:58,153 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 170 transitions, 1536 flow [2021-06-11 19:19:58,153 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 170 transitions, 1536 flow [2021-06-11 19:19:58,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 170 transitions, 1536 flow [2021-06-11 19:19:58,169 INFO L129 PetriNetUnfolder]: 85/215 cut-off events. [2021-06-11 19:19:58,170 INFO L130 PetriNetUnfolder]: For 5627/5649 co-relation queries the response was YES. [2021-06-11 19:19:58,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 215 events. 85/215 cut-off events. For 5627/5649 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1085 event pairs, 1 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 1214. Up to 28 conditions per place. [2021-06-11 19:19:58,172 INFO L151 LiptonReduction]: Number of co-enabled transitions 76 [2021-06-11 19:19:58,177 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:58,177 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:58,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 19:19:58,177 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 170 transitions, 1536 flow [2021-06-11 19:19:58,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:58,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:58,177 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:58,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:58,378 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:58,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1522079595, now seen corresponding path program 73 times [2021-06-11 19:19:58,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:58,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910708694] [2021-06-11 19:19:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:58,389 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:58,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:58,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:58,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:19:58,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:19:58,428 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:58,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:58,443 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:58,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:58,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:58,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:58,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910708694] [2021-06-11 19:19:58,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333693732] [2021-06-11 19:19:58,466 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:58,481 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:58,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:58,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:58,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,488 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:58,488 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:58,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:58,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:58,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:58,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,501 INFO L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-06-11 19:19:58,502 INFO L142 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-06-11 19:19:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:58,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:58,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 19:19:58,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-11 19:19:58,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,534 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.0 percent of original size 34 [2021-06-11 19:19:58,535 INFO L142 QuantifierPusher]: treesize reduction 6, result has 85.0 percent of original size [2021-06-11 19:19:58,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:58,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:58,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:19:58,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,553 INFO L147 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size 51 [2021-06-11 19:19:58,553 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.2 percent of original size [2021-06-11 19:19:58,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:19:58,578 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-06-11 19:19:58,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:19:58,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:58,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:19:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:19:58,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-06-11 19:19:58,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-06-11 19:19:58,607 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-06-11 19:19:58,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 19:19:58,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:58,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:58,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-06-11 19:19:58,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:58,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-06-11 19:19:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:58,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:58,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:58,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566405645] [2021-06-11 19:19:58,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:58,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:58,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:58,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:58,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:58,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 170 transitions, 1536 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:58,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:58,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:58,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:58,997 INFO L129 PetriNetUnfolder]: 90/239 cut-off events. [2021-06-11 19:19:58,997 INFO L130 PetriNetUnfolder]: For 11311/11311 co-relation queries the response was YES. [2021-06-11 19:19:58,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2009 conditions, 239 events. 90/239 cut-off events. For 11311/11311 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1234 event pairs, 1 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 1873. Up to 182 conditions per place. [2021-06-11 19:19:59,000 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 155 selfloop transitions, 23 changer transitions 1/183 dead transitions. [2021-06-11 19:19:59,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 183 transitions, 2508 flow [2021-06-11 19:19:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:19:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:19:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 164 transitions. [2021-06-11 19:19:59,001 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45054945054945056 [2021-06-11 19:19:59,001 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 164 transitions. [2021-06-11 19:19:59,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 164 transitions. [2021-06-11 19:19:59,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:59,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 164 transitions. [2021-06-11 19:19:59,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 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) [2021-06-11 19:19:59,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:59,002 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:59,002 INFO L185 Difference]: Start difference. First operand has 236 places, 170 transitions, 1536 flow. Second operand 13 states and 164 transitions. [2021-06-11 19:19:59,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 183 transitions, 2508 flow [2021-06-11 19:19:59,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 183 transitions, 2434 flow, removed 26 selfloop flow, removed 11 redundant places. [2021-06-11 19:19:59,046 INFO L241 Difference]: Finished difference. Result has 240 places, 176 transitions, 1870 flow [2021-06-11 19:19:59,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1498, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1870, PETRI_PLACES=240, PETRI_TRANSITIONS=176} [2021-06-11 19:19:59,047 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 225 predicate places. [2021-06-11 19:19:59,047 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:59,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 176 transitions, 1870 flow [2021-06-11 19:19:59,047 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 176 transitions, 1870 flow [2021-06-11 19:19:59,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 239 places, 176 transitions, 1870 flow [2021-06-11 19:19:59,066 INFO L129 PetriNetUnfolder]: 88/234 cut-off events. [2021-06-11 19:19:59,066 INFO L130 PetriNetUnfolder]: For 8952/8972 co-relation queries the response was YES. [2021-06-11 19:19:59,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1676 conditions, 234 events. 88/234 cut-off events. For 8952/8972 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1226 event pairs, 1 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 1548. Up to 37 conditions per place. [2021-06-11 19:19:59,069 INFO L151 LiptonReduction]: Number of co-enabled transitions 82 [2021-06-11 19:19:59,075 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:19:59,075 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:19:59,075 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-06-11 19:19:59,075 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 176 transitions, 1870 flow [2021-06-11 19:19:59,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:59,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:19:59,075 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:19:59,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:59,285 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:19:59,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:19:59,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2103135953, now seen corresponding path program 74 times [2021-06-11 19:19:59,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:19:59,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474497631] [2021-06-11 19:19:59,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:19:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:19:59,291 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:19:59,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:19:59,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:19:59,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:59,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:19:59,324 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:19:59,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:59,339 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:19:59,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:19:59,353 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:19:59,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:59,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474497631] [2021-06-11 19:19:59,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493964789] [2021-06-11 19:19:59,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:19:59,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-11 19:19:59,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:19:59,384 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:19:59,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:19:59,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,390 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:19:59,390 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:19:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:19:59,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:19:59,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,422 INFO L147 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size 18 [2021-06-11 19:19:59,422 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-06-11 19:19:59,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:59,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:59,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:19:59,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:59,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:59,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:59,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-11 19:19:59,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,456 INFO L147 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size 23 [2021-06-11 19:19:59,456 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-06-11 19:19:59,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:59,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:59,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 19:19:59,474 INFO L142 QuantifierPusher]: treesize reduction 1, result has 96.3 percent of original size [2021-06-11 19:19:59,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-11 19:19:59,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:59,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-11 19:19:59,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:19:59,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:59,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:19:59,499 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-06-11 19:19:59,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-06-11 19:19:59,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:19:59,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:19:59,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:19:59,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:19:59,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:19:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:19:59,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:19:59,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:19:59,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962352706] [2021-06-11 19:19:59,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:19:59,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:19:59,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:19:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:19:59,530 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:19:59,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 176 transitions, 1870 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:19:59,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:19:59,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:19:59,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:19:59,934 INFO L129 PetriNetUnfolder]: 93/258 cut-off events. [2021-06-11 19:19:59,934 INFO L130 PetriNetUnfolder]: For 14587/14587 co-relation queries the response was YES. [2021-06-11 19:19:59,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2354 conditions, 258 events. 93/258 cut-off events. For 14587/14587 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1403 event pairs, 1 based on Foata normal form. 1/255 useless extension candidates. Maximal degree in co-relation 2220. Up to 191 conditions per place. [2021-06-11 19:19:59,937 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 151 selfloop transitions, 33 changer transitions 1/189 dead transitions. [2021-06-11 19:19:59,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 189 transitions, 2844 flow [2021-06-11 19:19:59,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-11 19:19:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-11 19:19:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 213 transitions. [2021-06-11 19:19:59,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4474789915966387 [2021-06-11 19:19:59,938 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 213 transitions. [2021-06-11 19:19:59,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 213 transitions. [2021-06-11 19:19:59,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:19:59,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 213 transitions. [2021-06-11 19:19:59,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 12.529411764705882) internal successors, (213), 17 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) [2021-06-11 19:19:59,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 28.0) internal successors, (504), 18 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) [2021-06-11 19:19:59,939 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 28.0) internal successors, (504), 18 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) [2021-06-11 19:19:59,939 INFO L185 Difference]: Start difference. First operand has 239 places, 176 transitions, 1870 flow. Second operand 17 states and 213 transitions. [2021-06-11 19:19:59,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 189 transitions, 2844 flow [2021-06-11 19:19:59,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 189 transitions, 2598 flow, removed 112 selfloop flow, removed 7 redundant places. [2021-06-11 19:19:59,995 INFO L241 Difference]: Finished difference. Result has 251 places, 182 transitions, 2032 flow [2021-06-11 19:19:59,995 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2032, PETRI_PLACES=251, PETRI_TRANSITIONS=182} [2021-06-11 19:19:59,995 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 236 predicate places. [2021-06-11 19:19:59,995 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:19:59,995 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 182 transitions, 2032 flow [2021-06-11 19:19:59,995 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 182 transitions, 2032 flow [2021-06-11 19:19:59,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 182 transitions, 2032 flow [2021-06-11 19:20:00,017 INFO L129 PetriNetUnfolder]: 91/253 cut-off events. [2021-06-11 19:20:00,017 INFO L130 PetriNetUnfolder]: For 11134/11154 co-relation queries the response was YES. [2021-06-11 19:20:00,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 253 events. 91/253 cut-off events. For 11134/11154 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1393 event pairs, 1 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 1775. Up to 45 conditions per place. [2021-06-11 19:20:00,020 INFO L151 LiptonReduction]: Number of co-enabled transitions 88 [2021-06-11 19:20:00,026 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:20:00,026 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:20:00,026 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-06-11 19:20:00,027 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 182 transitions, 2032 flow [2021-06-11 19:20:00,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:20:00,027 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:20:00,027 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:20:00,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:20:00,229 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:20:00,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:20:00,229 INFO L82 PathProgramCache]: Analyzing trace with hash 534921917, now seen corresponding path program 75 times [2021-06-11 19:20:00,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:20:00,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098893246] [2021-06-11 19:20:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:20:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:20:00,238 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:20:00,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:20:00,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:20:00,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:00,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:20:00,273 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:20:00,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:00,288 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:20:00,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:00,301 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:20:00,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:20:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:20:00,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098893246] [2021-06-11 19:20:00,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837460364] [2021-06-11 19:20:00,311 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 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:20:00,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-11 19:20:00,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:20:00,328 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:20:00,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:20:00,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:00,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,343 INFO L147 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size 21 [2021-06-11 19:20:00,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 19:20:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:00,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:00,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:00,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,357 INFO L147 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size 25 [2021-06-11 19:20:00,358 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.6 percent of original size [2021-06-11 19:20:00,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:20:00,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:20:00,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:20:00,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,373 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size 33 [2021-06-11 19:20:00,373 INFO L142 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size [2021-06-11 19:20:00,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:00,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:00,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:00,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,389 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-06-11 19:20:00,390 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-06-11 19:20:00,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:20:00,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:20:00,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-06-11 19:20:00,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,409 INFO L147 QuantifierPusher]: treesize reduction 6, result has 89.5 percent of original size 51 [2021-06-11 19:20:00,410 INFO L142 QuantifierPusher]: treesize reduction 6, result has 89.5 percent of original size [2021-06-11 19:20:00,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:00,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:00,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:00,431 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-06-11 19:20:00,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:20:00,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,433 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:00,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 19:20:00,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 19:20:00,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 19:20:00,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 19:20:00,460 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.6 percent of original size [2021-06-11 19:20:00,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 19:20:00,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,462 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:00,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:00,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-06-11 19:20:00,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:00,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-06-11 19:20:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:20:00,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-11 19:20:00,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-06-11 19:20:00,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169516866] [2021-06-11 19:20:00,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-11 19:20:00,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 19:20:00,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-11 19:20:00,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2021-06-11 19:20:00,498 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 28 [2021-06-11 19:20:00,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 182 transitions, 2032 flow. Second operand has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:20:00,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 19:20:00,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 28 [2021-06-11 19:20:00,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 19:20:00,800 INFO L129 PetriNetUnfolder]: 93/260 cut-off events. [2021-06-11 19:20:00,800 INFO L130 PetriNetUnfolder]: For 12856/12856 co-relation queries the response was YES. [2021-06-11 19:20:00,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 260 events. 93/260 cut-off events. For 12856/12856 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1431 event pairs, 1 based on Foata normal form. 1/257 useless extension candidates. Maximal degree in co-relation 2099. Up to 199 conditions per place. [2021-06-11 19:20:00,802 INFO L132 encePairwiseOnDemand]: 22/28 looper letters, 154 selfloop transitions, 27 changer transitions 1/186 dead transitions. [2021-06-11 19:20:00,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 186 transitions, 2487 flow [2021-06-11 19:20:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-11 19:20:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-11 19:20:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 164 transitions. [2021-06-11 19:20:00,803 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45054945054945056 [2021-06-11 19:20:00,803 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 164 transitions. [2021-06-11 19:20:00,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 164 transitions. [2021-06-11 19:20:00,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 19:20:00,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 164 transitions. [2021-06-11 19:20:00,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 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) [2021-06-11 19:20:00,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:20:00,804 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 28.0) internal successors, (392), 14 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:20:00,804 INFO L185 Difference]: Start difference. First operand has 250 places, 182 transitions, 2032 flow. Second operand 13 states and 164 transitions. [2021-06-11 19:20:00,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 186 transitions, 2487 flow [2021-06-11 19:20:00,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 186 transitions, 2222 flow, removed 117 selfloop flow, removed 11 redundant places. [2021-06-11 19:20:00,854 INFO L241 Difference]: Finished difference. Result has 254 places, 184 transitions, 1918 flow [2021-06-11 19:20:00,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1769, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1918, PETRI_PLACES=254, PETRI_TRANSITIONS=184} [2021-06-11 19:20:00,855 INFO L343 CegarLoopForPetriNet]: 15 programPoint places, 239 predicate places. [2021-06-11 19:20:00,855 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 19:20:00,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 184 transitions, 1918 flow [2021-06-11 19:20:00,855 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 184 transitions, 1918 flow [2021-06-11 19:20:00,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 184 transitions, 1918 flow [2021-06-11 19:20:00,876 INFO L129 PetriNetUnfolder]: 91/254 cut-off events. [2021-06-11 19:20:00,876 INFO L130 PetriNetUnfolder]: For 9292/9312 co-relation queries the response was YES. [2021-06-11 19:20:00,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 254 events. 91/254 cut-off events. For 9292/9312 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1383 event pairs, 1 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 1648. Up to 45 conditions per place. [2021-06-11 19:20:00,878 INFO L151 LiptonReduction]: Number of co-enabled transitions 88 [2021-06-11 19:20:00,884 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 19:20:00,884 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 19:20:00,884 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-06-11 19:20:00,885 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 184 transitions, 1918 flow [2021-06-11 19:20:00,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 11.0) internal successors, (187), 17 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 19:20:00,885 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 19:20:00,885 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 19:20:01,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:20:01,085 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 19:20:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 19:20:01,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2102242223, now seen corresponding path program 76 times [2021-06-11 19:20:01,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 19:20:01,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546741964] [2021-06-11 19:20:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 19:20:01,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 19:20:01,092 INFO L142 QuantifierPusher]: treesize reduction 12, result has 52.0 percent of original size [2021-06-11 19:20:01,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 19:20:01,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 19:20:01,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:20:01,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:20:01,125 INFO L142 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size [2021-06-11 19:20:01,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-11 19:20:01,139 INFO L142 QuantifierPusher]: treesize reduction 5, result has 80.8 percent of original size [2021-06-11 19:20:01,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:01,152 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-06-11 19:20:01,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 19:20:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 19:20:01,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546741964] [2021-06-11 19:20:01,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786114454] [2021-06-11 19:20:01,163 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-11 19:20:01,194 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-11 19:20:01,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-11 19:20:01,195 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-11 19:20:01,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-11 19:20:01,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:01,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,201 INFO L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-06-11 19:20:01,201 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-06-11 19:20:01,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:01,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,217 INFO L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21 [2021-06-11 19:20:01,217 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-06-11 19:20:01,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:01,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:01,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:01,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,232 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size 34 [2021-06-11 19:20:01,232 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.9 percent of original size [2021-06-11 19:20:01,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:20:01,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:20:01,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-11 19:20:01,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,250 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.8 percent of original size 44 [2021-06-11 19:20:01,250 INFO L142 QuantifierPusher]: treesize reduction 5, result has 89.8 percent of original size [2021-06-11 19:20:01,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-11 19:20:01,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-11 19:20:01,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-11 19:20:01,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,275 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.4 percent of original size 51 [2021-06-11 19:20:01,275 INFO L142 QuantifierPusher]: treesize reduction 3, result has 94.4 percent of original size [2021-06-11 19:20:01,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:01,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:01,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:01,298 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-06-11 19:20:01,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-06-11 19:20:01,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,300 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 19:20:01,301 INFO L147 QuantifierPusher]: treesize reduction -1, result has 100.9 percent of original size 107 [2021-06-11 19:20:01,302 INFO L142 QuantifierPusher]: treesize reduction -1, result has 100.9 percent of original size [2021-06-11 19:20:01,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:20:01,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-06-11 19:20:01,328 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.9 percent of original size [2021-06-11 19:20:01,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-06-11 19:20:01,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,355 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,416 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,534 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,584 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 582 [2021-06-11 19:20:01,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 589 [2021-06-11 19:20:01,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,681 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:01,690 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,701 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.4 percent of original size 86 [2021-06-11 19:20:01,703 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:01,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,713 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,714 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 61 [2021-06-11 19:20:01,714 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,715 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.0 percent of original size [2021-06-11 19:20:01,726 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,739 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 61 [2021-06-11 19:20:01,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,740 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.7 percent of original size 37 [2021-06-11 19:20:01,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,741 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-06-11 19:20:01,742 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size 50 [2021-06-11 19:20:01,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,742 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-06-11 19:20:01,754 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,761 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size 53 [2021-06-11 19:20:01,762 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,762 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size 53 [2021-06-11 19:20:01,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,763 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.8 percent of original size [2021-06-11 19:20:01,774 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-11 19:20:01,779 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,780 INFO L147 QuantifierPusher]: treesize reduction 16, result has 48.4 percent of original size 15 [2021-06-11 19:20:01,780 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,781 INFO L147 QuantifierPusher]: treesize reduction -10, result has 117.9 percent of original size 66 [2021-06-11 19:20:01,799 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,844 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,900 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 19:20:01,902 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,903 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.8 percent of original size 22 [2021-06-11 19:20:01,904 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,905 INFO L147 QuantifierPusher]: treesize reduction -9, result has 111.1 percent of original size 90 [2021-06-11 19:20:01,906 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:01,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,913 INFO L147 QuantifierPusher]: treesize reduction -10, result has 113.3 percent of original size 85 [2021-06-11 19:20:01,929 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,964 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:01,972 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-11 19:20:01,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 19:20:01,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,976 INFO L147 QuantifierPusher]: treesize reduction -10, result has 115.9 percent of original size 73 [2021-06-11 19:20:01,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,977 INFO L142 QuantifierPusher]: treesize reduction -5, result has 111.6 percent of original size [2021-06-11 19:20:01,978 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.0 percent of original size 52 [2021-06-11 19:20:01,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,979 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size [2021-06-11 19:20:01,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 19:20:01,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:01,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:01,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:20:02,012 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,045 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,082 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,123 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-11 19:20:02,125 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:02,127 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-11 19:20:02,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,129 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.5 percent of original size 41 [2021-06-11 19:20:02,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,131 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.8 percent of original size 37 [2021-06-11 19:20:02,131 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,135 INFO L147 QuantifierPusher]: treesize reduction -8, result has 112.3 percent of original size 73 [2021-06-11 19:20:02,156 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,189 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,193 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,195 INFO L147 QuantifierPusher]: treesize reduction -19, result has 117.3 percent of original size 129 [2021-06-11 19:20:02,195 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:20:02,197 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:02,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,200 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.5 percent of original size 41 [2021-06-11 19:20:02,200 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,201 INFO L142 QuantifierPusher]: treesize reduction -9, result has 111.1 percent of original size [2021-06-11 19:20:02,217 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-06-11 19:20:02,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 19:20:02,231 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,246 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,284 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:20:02,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:02,287 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:20:02,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:20:02,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,309 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,352 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,353 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-06-11 19:20:02,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,355 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.9 percent of original size 36 [2021-06-11 19:20:02,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,356 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size [2021-06-11 19:20:02,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,361 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size 50 [2021-06-11 19:20:02,361 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,362 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.6 percent of original size [2021-06-11 19:20:02,374 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,394 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,395 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-06-11 19:20:02,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:02,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,404 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 45 [2021-06-11 19:20:02,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,407 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.6 percent of original size [2021-06-11 19:20:02,423 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,446 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,455 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.6 percent of original size 40 [2021-06-11 19:20:02,455 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,456 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.8 percent of original size 55 [2021-06-11 19:20:02,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,458 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 45 [2021-06-11 19:20:02,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,459 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.0 percent of original size [2021-06-11 19:20:02,479 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,497 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.8 percent of original size 73 [2021-06-11 19:20:02,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,501 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:20:02,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,502 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.2 percent of original size [2021-06-11 19:20:02,512 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,516 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,517 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 55 [2021-06-11 19:20:02,517 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:02,518 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 43 [2021-06-11 19:20:02,519 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:02,519 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.6 percent of original size [2021-06-11 19:20:02,563 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,644 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:02,806 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:03,094 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:03,469 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:03,791 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:03,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:03,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:20:03,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,931 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:20:03,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:03,938 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size 50 [2021-06-11 19:20:03,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,939 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.7 percent of original size [2021-06-11 19:20:03,954 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:03,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:03,972 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.2 percent of original size 50 [2021-06-11 19:20:03,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:03,975 INFO L147 QuantifierPusher]: treesize reduction -10, result has 109.0 percent of original size 121 [2021-06-11 19:20:03,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,976 INFO L142 QuantifierPusher]: treesize reduction -6, result has 105.7 percent of original size [2021-06-11 19:20:03,980 INFO L147 QuantifierPusher]: treesize reduction 147, result has 72.2 percent of original size 382 [2021-06-11 19:20:03,982 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:03,983 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.9 percent of original size [2021-06-11 19:20:04,003 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,032 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:04,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,035 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.7 percent of original size [2021-06-11 19:20:04,039 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,040 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.5 percent of original size 46 [2021-06-11 19:20:04,040 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,041 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.9 percent of original size [2021-06-11 19:20:04,052 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,080 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,081 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.7 percent of original size 45 [2021-06-11 19:20:04,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,082 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:20:04,083 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 55 [2021-06-11 19:20:04,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,085 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.5 percent of original size 46 [2021-06-11 19:20:04,085 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,086 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-06-11 19:20:04,108 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,140 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:04,148 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-11 19:20:04,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,150 INFO L142 QuantifierPusher]: treesize reduction -1, result has 103.0 percent of original size [2021-06-11 19:20:04,164 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,174 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,175 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.5 percent of original size 46 [2021-06-11 19:20:04,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,176 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-06-11 19:20:04,181 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,184 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 55 [2021-06-11 19:20:04,184 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,189 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size [2021-06-11 19:20:04,202 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,227 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:04,229 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,231 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 55 [2021-06-11 19:20:04,232 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,233 INFO L147 QuantifierPusher]: treesize reduction -5, result has 109.6 percent of original size 57 [2021-06-11 19:20:04,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,234 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-06-11 19:20:04,238 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,239 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 44 [2021-06-11 19:20:04,240 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,241 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size [2021-06-11 19:20:04,253 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,285 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,287 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.4 percent of original size 60 [2021-06-11 19:20:04,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,289 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 53 [2021-06-11 19:20:04,290 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,290 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size [2021-06-11 19:20:04,293 INFO L147 QuantifierPusher]: treesize reduction -9, result has 106.5 percent of original size 147 [2021-06-11 19:20:04,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,295 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-06-11 19:20:04,295 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size 58 [2021-06-11 19:20:04,296 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,297 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.1 percent of original size [2021-06-11 19:20:04,318 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,344 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,354 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,356 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 43 [2021-06-11 19:20:04,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,358 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.2 percent of original size 64 [2021-06-11 19:20:04,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:20:04,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,361 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.1 percent of original size [2021-06-11 19:20:04,365 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,366 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.4 percent of original size 47 [2021-06-11 19:20:04,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,367 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.6 percent of original size [2021-06-11 19:20:04,389 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,428 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,445 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:04,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,449 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.4 percent of original size 47 [2021-06-11 19:20:04,449 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,451 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 43 [2021-06-11 19:20:04,451 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,456 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,457 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 45 [2021-06-11 19:20:04,458 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,458 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size [2021-06-11 19:20:04,477 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,495 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,497 INFO L147 QuantifierPusher]: treesize reduction -1, result has 103.1 percent of original size 33 [2021-06-11 19:20:04,497 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 19:20:04,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,503 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,505 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 44 [2021-06-11 19:20:04,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,506 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.5 percent of original size [2021-06-11 19:20:04,527 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,575 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size 44 [2021-06-11 19:20:04,576 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,578 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.7 percent of original size 45 [2021-06-11 19:20:04,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:04,582 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,582 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-06-11 19:20:04,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,591 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:20:04,591 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,592 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.1 percent of original size [2021-06-11 19:20:04,610 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,642 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,644 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size 46 [2021-06-11 19:20:04,644 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-06-11 19:20:04,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-06-11 19:20:04,650 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,685 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,735 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,792 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,874 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,931 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:20:04,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,935 INFO L147 QuantifierPusher]: treesize reduction -4, result has 108.3 percent of original size 52 [2021-06-11 19:20:04,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 19:20:04,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:20:04,941 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,942 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size 52 [2021-06-11 19:20:04,943 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,945 INFO L147 QuantifierPusher]: treesize reduction -5, result has 107.9 percent of original size 68 [2021-06-11 19:20:04,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,947 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size [2021-06-11 19:20:04,949 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,951 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.4 percent of original size 47 [2021-06-11 19:20:04,964 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:04,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,973 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.7 percent of original size 56 [2021-06-11 19:20:04,973 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,975 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size 50 [2021-06-11 19:20:04,975 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:04,977 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.6 percent of original size 57 [2021-06-11 19:20:04,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:04,978 INFO L142 QuantifierPusher]: treesize reduction -4, result has 102.7 percent of original size [2021-06-11 19:20:05,005 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,044 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,112 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,164 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,205 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,207 INFO L147 QuantifierPusher]: treesize reduction -5, result has 110.2 percent of original size 54 [2021-06-11 19:20:05,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,209 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size [2021-06-11 19:20:05,210 INFO L147 QuantifierPusher]: treesize reduction -4, result has 106.3 percent of original size 68 [2021-06-11 19:20:05,211 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,212 INFO L147 QuantifierPusher]: treesize reduction -2, result has 105.3 percent of original size 40 [2021-06-11 19:20:05,213 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,215 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.4 percent of original size 47 [2021-06-11 19:20:05,215 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,216 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.2 percent of original size [2021-06-11 19:20:05,217 INFO L147 QuantifierPusher]: treesize reduction 26, result has 50.0 percent of original size 26 [2021-06-11 19:20:05,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,219 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.9 percent of original size [2021-06-11 19:20:05,237 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,247 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.7 percent of original size 56 [2021-06-11 19:20:05,247 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,249 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.7 percent of original size 56 [2021-06-11 19:20:05,249 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,250 INFO L142 QuantifierPusher]: treesize reduction -4, result has 103.2 percent of original size [2021-06-11 19:20:05,275 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,338 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,482 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,597 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,652 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,660 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.9 percent of original size 43 [2021-06-11 19:20:05,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,665 INFO L147 QuantifierPusher]: treesize reduction -2, result has 106.3 percent of original size 34 [2021-06-11 19:20:05,667 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,668 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size [2021-06-11 19:20:05,669 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size 50 [2021-06-11 19:20:05,671 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,672 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.3 percent of original size [2021-06-11 19:20:05,673 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.9 percent of original size 53 [2021-06-11 19:20:05,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,677 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.4 percent of original size [2021-06-11 19:20:05,686 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,688 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size 53 [2021-06-11 19:20:05,689 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,690 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size [2021-06-11 19:20:05,715 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-06-11 19:20:05,736 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:20:05,739 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,741 INFO L147 QuantifierPusher]: treesize reduction 30, result has 49.2 percent of original size 29 [2021-06-11 19:20:05,742 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,770 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,844 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,912 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,914 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.4 percent of original size 61 [2021-06-11 19:20:05,915 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,916 INFO L142 QuantifierPusher]: treesize reduction -1, result has 102.0 percent of original size [2021-06-11 19:20:05,917 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.7 percent of original size 59 [2021-06-11 19:20:05,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,919 INFO L147 QuantifierPusher]: treesize reduction -1, result has 104.3 percent of original size 24 [2021-06-11 19:20:05,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,921 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-06-11 19:20:05,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,929 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 48 [2021-06-11 19:20:05,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,931 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.3 percent of original size [2021-06-11 19:20:05,955 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,985 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:05,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,995 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-06-11 19:20:05,995 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:05,997 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size 53 [2021-06-11 19:20:05,998 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:05,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,000 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 48 [2021-06-11 19:20:06,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,001 INFO L142 QuantifierPusher]: treesize reduction -2, result has 103.0 percent of original size [2021-06-11 19:20:06,027 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,079 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,084 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,086 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.6 percent of original size 79 [2021-06-11 19:20:06,087 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,088 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-06-11 19:20:06,089 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 65 [2021-06-11 19:20:06,090 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,091 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size 48 [2021-06-11 19:20:06,092 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,093 INFO L142 QuantifierPusher]: treesize reduction -2, result has 101.2 percent of original size [2021-06-11 19:20:06,124 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,171 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,303 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,531 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,721 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,885 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,910 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,912 INFO L147 QuantifierPusher]: treesize reduction -2, result has 102.6 percent of original size 79 [2021-06-11 19:20:06,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,918 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size 78 [2021-06-11 19:20:06,920 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:06,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 19:20:06,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,931 INFO L142 QuantifierPusher]: treesize reduction -1, result has 101.8 percent of original size [2021-06-11 19:20:06,936 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,940 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.0 percent of original size 52 [2021-06-11 19:20:06,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,941 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.2 percent of original size [2021-06-11 19:20:06,957 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:06,971 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:06,974 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,978 INFO L147 QuantifierPusher]: treesize reduction -10, result has 105.4 percent of original size 195 [2021-06-11 19:20:06,978 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,980 INFO L147 QuantifierPusher]: treesize reduction -2, result has 104.0 percent of original size 52 [2021-06-11 19:20:06,981 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,983 INFO L147 QuantifierPusher]: treesize reduction -2, result has 103.9 percent of original size 53 [2021-06-11 19:20:06,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:06,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 19:20:06,986 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:06,987 INFO L142 QuantifierPusher]: treesize reduction -7, result has 105.0 percent of original size [2021-06-11 19:20:07,013 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,067 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,129 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,230 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,252 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:07,255 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:20:07,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,259 INFO L147 QuantifierPusher]: treesize reduction -3, result has 104.8 percent of original size 66 [2021-06-11 19:20:07,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 19:20:07,263 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,265 INFO L147 QuantifierPusher]: treesize reduction -3, result has 104.2 percent of original size 75 [2021-06-11 19:20:07,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:20:07,283 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,289 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-11 19:20:07,292 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:20:07,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,296 INFO L147 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size 23 [2021-06-11 19:20:07,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,327 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,382 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,393 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:20:07,396 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:07,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 19:20:07,401 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-06-11 19:20:07,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,409 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:07,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,443 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,513 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-06-11 19:20:07,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 19:20:07,548 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:07,550 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:07,580 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,608 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 19:20:07,611 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-06-11 19:20:07,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:20:07,616 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,623 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:07,626 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,647 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:07,664 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 19:20:07,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:07,668 INFO L147 QuantifierPusher]: treesize reduction -6, result has 108.8 percent of original size 74 [2021-06-11 19:20:07,669 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:07,670 INFO L142 QuantifierPusher]: treesize reduction -6, result has 103.3 percent of original size [2021-06-11 19:20:07,712 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,778 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,861 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:07,963 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:08,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-11 19:20:08,031 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-11 19:20:08,034 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 19:20:08,038 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,039 INFO L147 QuantifierPusher]: treesize reduction 24, result has 48.9 percent of original size 23 [2021-06-11 19:20:08,041 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-11 19:20:08,044 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-06-11 19:20:08,081 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:08,123 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:08,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:08,229 INFO L147 QuantifierPusher]: treesize reduction -6, result has 100.8 percent of original size 715 [2021-06-11 19:20:08,235 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,237 INFO L142 QuantifierPusher]: treesize reduction 114, result has 67.6 percent of original size [2021-06-11 19:20:08,240 INFO L147 QuantifierPusher]: treesize reduction -58, result has 105.5 percent of original size 1118 [2021-06-11 19:20:08,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,245 INFO L142 QuantifierPusher]: treesize reduction 132, result has 82.1 percent of original size [2021-06-11 19:20:08,253 INFO L147 QuantifierPusher]: treesize reduction -102, result has 102.2 percent of original size 4763 [2021-06-11 19:20:08,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:08,265 INFO L142 QuantifierPusher]: treesize reduction -6, result has 100.2 percent of original size [2021-06-11 19:20:08,620 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:09,311 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:10,312 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:11,729 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:13,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,336 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.5 percent of original size 66 [2021-06-11 19:20:13,342 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,345 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.3 percent of original size 77 [2021-06-11 19:20:13,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,353 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.5 percent of original size 41 [2021-06-11 19:20:13,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,361 INFO L147 QuantifierPusher]: treesize reduction -5, result has 103.8 percent of original size 137 [2021-06-11 19:20:13,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,369 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:20:13,375 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,377 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 43 [2021-06-11 19:20:13,383 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,385 INFO L147 QuantifierPusher]: treesize reduction -6, result has 104.8 percent of original size 131 [2021-06-11 19:20:13,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,394 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.2 percent of original size 85 [2021-06-11 19:20:13,399 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,401 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 64 [2021-06-11 19:20:13,407 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,409 INFO L147 QuantifierPusher]: treesize reduction -5, result has 107.2 percent of original size 74 [2021-06-11 19:20:13,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,417 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.7 percent of original size 112 [2021-06-11 19:20:13,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,425 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.3 percent of original size 101 [2021-06-11 19:20:13,431 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,433 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.7 percent of original size 111 [2021-06-11 19:20:13,438 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,440 INFO L147 QuantifierPusher]: treesize reduction -6, result has 108.2 percent of original size 79 [2021-06-11 19:20:13,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,448 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.6 percent of original size 114 [2021-06-11 19:20:13,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,455 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.1 percent of original size 96 [2021-06-11 19:20:13,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,463 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.0 percent of original size 130 [2021-06-11 19:20:13,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,470 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:20:13,476 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,478 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.4 percent of original size 118 [2021-06-11 19:20:13,483 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,485 INFO L147 QuantifierPusher]: treesize reduction -5, result has 105.7 percent of original size 92 [2021-06-11 19:20:13,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,493 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.3 percent of original size 120 [2021-06-11 19:20:13,499 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,502 INFO L147 QuantifierPusher]: treesize reduction -5, result has 105.6 percent of original size 95 [2021-06-11 19:20:13,507 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,509 INFO L147 QuantifierPusher]: treesize reduction -5, result has 106.1 percent of original size 87 [2021-06-11 19:20:13,514 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,515 INFO L142 QuantifierPusher]: treesize reduction -2, result has 104.3 percent of original size [2021-06-11 19:20:13,516 INFO L147 QuantifierPusher]: treesize reduction -1, result has 102.4 percent of original size 42 [2021-06-11 19:20:13,520 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,523 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.2 percent of original size 103 [2021-06-11 19:20:13,527 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,529 INFO L147 QuantifierPusher]: treesize reduction -5, result has 103.8 percent of original size 135 [2021-06-11 19:20:13,534 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,536 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.5 percent of original size 98 [2021-06-11 19:20:13,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,543 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 65 [2021-06-11 19:20:13,547 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,550 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.7 percent of original size 112 [2021-06-11 19:20:13,554 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,555 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.0 percent of original size [2021-06-11 19:20:13,556 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.5 percent of original size 116 [2021-06-11 19:20:13,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,563 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.7 percent of original size 95 [2021-06-11 19:20:13,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,569 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.4 percent of original size 118 [2021-06-11 19:20:13,573 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,574 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.5 percent of original size [2021-06-11 19:20:13,575 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.4 percent of original size 100 [2021-06-11 19:20:13,579 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,582 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.2 percent of original size 83 [2021-06-11 19:20:13,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,588 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.5 percent of original size 116 [2021-06-11 19:20:13,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,594 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.4 percent of original size 118 [2021-06-11 19:20:13,598 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,600 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.3 percent of original size 101 [2021-06-11 19:20:13,603 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,606 INFO L147 QuantifierPusher]: treesize reduction -5, result has 104.1 percent of original size 127 [2021-06-11 19:20:13,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,611 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 64 [2021-06-11 19:20:13,615 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,625 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.2 percent of original size 122 [2021-06-11 19:20:13,629 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,631 INFO L147 QuantifierPusher]: treesize reduction -6, result has 106.5 percent of original size 99 [2021-06-11 19:20:13,635 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,636 INFO L142 QuantifierPusher]: treesize reduction -2, result has 102.9 percent of original size [2021-06-11 19:20:13,637 INFO L147 QuantifierPusher]: treesize reduction -1, result has 101.6 percent of original size 65 [2021-06-11 19:20:13,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,642 INFO L147 QuantifierPusher]: treesize reduction -1, result has 105.0 percent of original size 21 [2021-06-11 19:20:13,646 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 19:20:13,648 INFO L147 QuantifierPusher]: treesize reduction -6, result has 105.3 percent of original size 119 [2021-06-11 19:20:13,651 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 19:20:13,656 INFO L142 QuantifierPusher]: treesize reduction -48, result has 101.8 percent of original size [2021-06-11 19:20:13,758 INFO L147 QuantifierPusher]: treesize reduction -468, result has 100.9 percent of original size 51733 [2021-06-11 19:20:24,387 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:20:54,817 INFO L842 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:21:31,887 INFO L842 QuantifierPusher]: Run 30 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:22:14,281 INFO L842 QuantifierPusher]: Run 40 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:23:04,295 INFO L842 QuantifierPusher]: Run 50 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:23:58,288 INFO L842 QuantifierPusher]: Run 60 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:25:00,142 INFO L842 QuantifierPusher]: Run 70 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:26:07,857 INFO L842 QuantifierPusher]: Run 80 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:27:22,417 INFO L842 QuantifierPusher]: Run 90 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:28:44,624 INFO L842 QuantifierPusher]: Run 100 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:30:12,107 INFO L842 QuantifierPusher]: Run 110 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:31:43,420 INFO L842 QuantifierPusher]: Run 120 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-06-11 19:33:23,145 INFO L842 QuantifierPusher]: Run 130 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown