/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 02:42:29,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 02:42:29,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 02:42:29,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-13 02:42:29,134 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-NoLbe-OGIterative.epf [2021-08-13 02:42:29,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 02:42:29,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 02:42:29,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 02:42:29,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 02:42:29,160 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 02:42:29,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 02:42:29,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 02:42:29,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 02:42:29,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 02:42:29,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 02:42:29,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 02:42:29,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 02:42:29,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 02:42:29,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 02:42:29,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 02:42:29,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 02:42:29,164 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 02:42:29,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 02:42:29,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 02:42:29,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 02:42:29,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 02:42:29,453 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 02:42:29,454 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 02:42:29,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl [2021-08-13 02:42:29,455 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl' [2021-08-13 02:42:29,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 02:42:29,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 02:42:29,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 02:42:29,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 02:42:29,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 02:42:29,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 02:42:29,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 02:42:29,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 02:42:29,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 02:42:29,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/1) ... [2021-08-13 02:42:29,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 02:42:29,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 02:42:29,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 02:42:29,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 02:42:29,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (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 [2021-08-13 02:42:29,566 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 02:42:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 02:42:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 02:42:29,567 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 02:42:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 02:42:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 02:42:29,568 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 02:42:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 02:42:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 02:42:29,568 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 02:42:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 02:42:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 02:42:29,568 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 02:42:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 02:42:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 02:42:29,569 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 02:42:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 02:42:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 02:42:29,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 02:42:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 02:42:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 02:42:29,571 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 02:42:29,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 02:42:29,693 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 02:42:29,694 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:42:29 BoogieIcfgContainer [2021-08-13 02:42:29,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 02:42:29,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 02:42:29,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 02:42:29,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 02:42:29,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 02:42:29" (1/2) ... [2021-08-13 02:42:29,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1481f5db and model type example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 02:42:29, skipping insertion in model container [2021-08-13 02:42:29,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 02:42:29" (2/2) ... [2021-08-13 02:42:29,700 INFO L111 eAbstractionObserver]: Analyzing ICFG example_6.bpl [2021-08-13 02:42:29,704 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 02:42:29,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 02:42:29,704 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 02:42:29,777 INFO L149 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2021-08-13 02:42:29,792 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-13 02:42:29,815 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 02:42:29,815 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 02:42:29,815 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 02:42:29,815 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 02:42:29,815 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 02:42:29,815 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 02:42:29,815 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 02:42:29,815 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 02:42:29,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 63 transitions, 264 flow [2021-08-13 02:42:29,920 INFO L129 PetriNetUnfolder]: 129/213 cut-off events. [2021-08-13 02:42:29,920 INFO L130 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2021-08-13 02:42:29,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 213 events. 129/213 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 763 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 187. Up to 60 conditions per place. [2021-08-13 02:42:29,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 63 transitions, 264 flow [2021-08-13 02:42:29,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 55 transitions, 236 flow [2021-08-13 02:42:29,951 INFO L129 PetriNetUnfolder]: 129/210 cut-off events. [2021-08-13 02:42:29,952 INFO L130 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2021-08-13 02:42:29,952 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:29,952 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:29,953 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:29,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:29,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2015486039, now seen corresponding path program 1 times [2021-08-13 02:42:29,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:29,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946686687] [2021-08-13 02:42:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:42:30,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946686687] [2021-08-13 02:42:30,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946686687] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:42:30,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076968747] [2021-08-13 02:42:30,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:42:30,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:42:30,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:42:30,094 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 63 [2021-08-13 02:42:30,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 55 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 63 [2021-08-13 02:42:30,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,136 INFO L129 PetriNetUnfolder]: 49/100 cut-off events. [2021-08-13 02:42:30,137 INFO L130 PetriNetUnfolder]: For 177/177 co-relation queries the response was YES. [2021-08-13 02:42:30,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 100 events. 49/100 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 320 event pairs, 0 based on Foata normal form. 31/131 useless extension candidates. Maximal degree in co-relation 172. Up to 30 conditions per place. [2021-08-13 02:42:30,140 INFO L132 encePairwiseOnDemand]: 57/63 looper letters, 1 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2021-08-13 02:42:30,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 190 flow [2021-08-13 02:42:30,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:42:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:42:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2021-08-13 02:42:30,151 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2021-08-13 02:42:30,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2021-08-13 02:42:30,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2021-08-13 02:42:30,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2021-08-13 02:42:30,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,165 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2021-08-13 02:42:30,165 INFO L482 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 190 flow [2021-08-13 02:42:30,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,165 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,165 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 02:42:30,166 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1011323523, now seen corresponding path program 1 times [2021-08-13 02:42:30,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098429352] [2021-08-13 02:42:30,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:42:30,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098429352] [2021-08-13 02:42:30,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098429352] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:42:30,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538132901] [2021-08-13 02:42:30,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:42:30,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:42:30,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:42:30,220 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 63 [2021-08-13 02:42:30,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 63 [2021-08-13 02:42:30,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,240 INFO L129 PetriNetUnfolder]: 21/61 cut-off events. [2021-08-13 02:42:30,240 INFO L130 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2021-08-13 02:42:30,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 61 events. 21/61 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 145 event pairs, 0 based on Foata normal form. 11/72 useless extension candidates. Maximal degree in co-relation 99. Up to 12 conditions per place. [2021-08-13 02:42:30,241 INFO L132 encePairwiseOnDemand]: 59/63 looper letters, 2 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2021-08-13 02:42:30,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 181 flow [2021-08-13 02:42:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:42:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:42:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2021-08-13 02:42:30,246 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2021-08-13 02:42:30,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,249 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 4 predicate places. [2021-08-13 02:42:30,249 INFO L482 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 181 flow [2021-08-13 02:42:30,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,250 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,250 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 02:42:30,250 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,250 INFO L82 PathProgramCache]: Analyzing trace with hash 614227573, now seen corresponding path program 1 times [2021-08-13 02:42:30,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530231661] [2021-08-13 02:42:30,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:42:30,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530231661] [2021-08-13 02:42:30,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530231661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:42:30,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840018996] [2021-08-13 02:42:30,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:42:30,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:42:30,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:42:30,284 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 63 [2021-08-13 02:42:30,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 63 [2021-08-13 02:42:30,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,296 INFO L129 PetriNetUnfolder]: 12/48 cut-off events. [2021-08-13 02:42:30,297 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-08-13 02:42:30,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 48 events. 12/48 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 78. Up to 8 conditions per place. [2021-08-13 02:42:30,298 INFO L132 encePairwiseOnDemand]: 60/63 looper letters, 3 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-08-13 02:42:30,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 179 flow [2021-08-13 02:42:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:42:30,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:42:30,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2021-08-13 02:42:30,299 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2021-08-13 02:42:30,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,301 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 6 predicate places. [2021-08-13 02:42:30,301 INFO L482 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 179 flow [2021-08-13 02:42:30,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,301 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,301 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 02:42:30,301 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1953879221, now seen corresponding path program 1 times [2021-08-13 02:42:30,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524599118] [2021-08-13 02:42:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 02:42:30,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524599118] [2021-08-13 02:42:30,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524599118] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 02:42:30,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043130138] [2021-08-13 02:42:30,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 02:42:30,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 02:42:30,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 02:42:30,335 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 63 [2021-08-13 02:42:30,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 63 [2021-08-13 02:42:30,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,348 INFO L129 PetriNetUnfolder]: 1/27 cut-off events. [2021-08-13 02:42:30,349 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2021-08-13 02:42:30,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 27 events. 1/27 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 5/32 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2021-08-13 02:42:30,349 INFO L132 encePairwiseOnDemand]: 58/63 looper letters, 1 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2021-08-13 02:42:30,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 27 transitions, 112 flow [2021-08-13 02:42:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 02:42:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 02:42:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2021-08-13 02:42:30,351 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2021-08-13 02:42:30,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions. [2021-08-13 02:42:30,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 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) [2021-08-13 02:42:30,353 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2021-08-13 02:42:30,353 INFO L482 AbstractCegarLoop]: Abstraction has has 52 places, 27 transitions, 112 flow [2021-08-13 02:42:30,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 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) [2021-08-13 02:42:30,353 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,354 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 02:42:30,354 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1442332039, now seen corresponding path program 1 times [2021-08-13 02:42:30,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364938213] [2021-08-13 02:42:30,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:30,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:30,451 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:30,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:30,477 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:30,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:30,513 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:30,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:30,555 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:30,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364938213] [2021-08-13 02:42:30,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364938213] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:30,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517289924] [2021-08-13 02:42:30,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:30,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:30,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:30,585 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:30,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 27 transitions, 112 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:30,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,711 INFO L129 PetriNetUnfolder]: 167/469 cut-off events. [2021-08-13 02:42:30,711 INFO L130 PetriNetUnfolder]: For 221/221 co-relation queries the response was YES. [2021-08-13 02:42:30,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 469 events. 167/469 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3164 event pairs, 49 based on Foata normal form. 1/442 useless extension candidates. Maximal degree in co-relation 851. Up to 97 conditions per place. [2021-08-13 02:42:30,715 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 20 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2021-08-13 02:42:30,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 46 transitions, 202 flow [2021-08-13 02:42:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:30,720 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:30,720 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,722 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,723 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 15 predicate places. [2021-08-13 02:42:30,723 INFO L482 AbstractCegarLoop]: Abstraction has has 59 places, 46 transitions, 202 flow [2021-08-13 02:42:30,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,723 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,723 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 02:42:30,724 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,724 INFO L82 PathProgramCache]: Analyzing trace with hash 2014025299, now seen corresponding path program 2 times [2021-08-13 02:42:30,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870815121] [2021-08-13 02:42:30,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:30,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:30,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:30,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:30,784 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:30,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:30,795 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:30,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:30,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:30,831 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:30,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:30,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:30,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870815121] [2021-08-13 02:42:30,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870815121] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:30,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:30,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:30,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621537833] [2021-08-13 02:42:30,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:30,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:30,851 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:30,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 202 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:30,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:30,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:30,953 INFO L129 PetriNetUnfolder]: 192/654 cut-off events. [2021-08-13 02:42:30,953 INFO L130 PetriNetUnfolder]: For 408/662 co-relation queries the response was YES. [2021-08-13 02:42:30,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1590 conditions, 654 events. 192/654 cut-off events. For 408/662 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 4961 event pairs, 17 based on Foata normal form. 1/626 useless extension candidates. Maximal degree in co-relation 1459. Up to 129 conditions per place. [2021-08-13 02:42:30,960 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 55 selfloop transitions, 18 changer transitions 0/93 dead transitions. [2021-08-13 02:42:30,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 93 transitions, 536 flow [2021-08-13 02:42:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:30,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:30,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:30,962 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:30,962 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:30,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:30,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,964 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,964 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 22 predicate places. [2021-08-13 02:42:30,964 INFO L482 AbstractCegarLoop]: Abstraction has has 66 places, 93 transitions, 536 flow [2021-08-13 02:42:30,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:30,964 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:30,964 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:30,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 02:42:30,964 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:30,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:30,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1143783117, now seen corresponding path program 3 times [2021-08-13 02:42:30,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:30,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470496207] [2021-08-13 02:42:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:31,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:31,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:31,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:31,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:31,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:31,050 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:31,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:31,068 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:31,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:31,097 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:31,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:31,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:31,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470496207] [2021-08-13 02:42:31,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470496207] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:31,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:31,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:31,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668836031] [2021-08-13 02:42:31,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:31,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:31,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:31,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:31,123 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:31,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 93 transitions, 536 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:31,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:31,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:31,248 INFO L129 PetriNetUnfolder]: 213/903 cut-off events. [2021-08-13 02:42:31,248 INFO L130 PetriNetUnfolder]: For 809/1749 co-relation queries the response was YES. [2021-08-13 02:42:31,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 903 events. 213/903 cut-off events. For 809/1749 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7987 event pairs, 5 based on Foata normal form. 3/867 useless extension candidates. Maximal degree in co-relation 2336. Up to 179 conditions per place. [2021-08-13 02:42:31,256 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 124 selfloop transitions, 45 changer transitions 0/189 dead transitions. [2021-08-13 02:42:31,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 189 transitions, 1450 flow [2021-08-13 02:42:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:31,258 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:31,258 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:31,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,260 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,260 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 29 predicate places. [2021-08-13 02:42:31,260 INFO L482 AbstractCegarLoop]: Abstraction has has 73 places, 189 transitions, 1450 flow [2021-08-13 02:42:31,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,260 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:31,260 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:31,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 02:42:31,260 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1567609223, now seen corresponding path program 4 times [2021-08-13 02:42:31,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:31,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574197562] [2021-08-13 02:42:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:31,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:31,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:31,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:31,302 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:31,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:31,321 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:31,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:31,344 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:31,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:31,373 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:31,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:31,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:31,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574197562] [2021-08-13 02:42:31,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574197562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:31,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:31,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:31,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573479527] [2021-08-13 02:42:31,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:31,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:31,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:31,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:31,396 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:31,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 189 transitions, 1450 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:31,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:31,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:31,549 INFO L129 PetriNetUnfolder]: 246/1180 cut-off events. [2021-08-13 02:42:31,549 INFO L130 PetriNetUnfolder]: For 1431/3439 co-relation queries the response was YES. [2021-08-13 02:42:31,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 1180 events. 246/1180 cut-off events. For 1431/3439 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 11633 event pairs, 1 based on Foata normal form. 13/1153 useless extension candidates. Maximal degree in co-relation 3464. Up to 242 conditions per place. [2021-08-13 02:42:31,559 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 233 selfloop transitions, 89 changer transitions 0/342 dead transitions. [2021-08-13 02:42:31,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 342 transitions, 3318 flow [2021-08-13 02:42:31,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:31,560 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:31,560 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:31,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,562 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,562 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 36 predicate places. [2021-08-13 02:42:31,562 INFO L482 AbstractCegarLoop]: Abstraction has has 80 places, 342 transitions, 3318 flow [2021-08-13 02:42:31,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,563 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:31,563 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:31,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 02:42:31,563 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:31,563 INFO L82 PathProgramCache]: Analyzing trace with hash 915183907, now seen corresponding path program 5 times [2021-08-13 02:42:31,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:31,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298332298] [2021-08-13 02:42:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:31,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:31,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:31,596 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:31,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:31,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:31,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:31,620 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:31,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:31,637 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:31,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:31,661 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:31,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:31,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:31,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298332298] [2021-08-13 02:42:31,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298332298] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:31,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:31,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:31,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103480279] [2021-08-13 02:42:31,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:31,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:31,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:31,682 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:31,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 342 transitions, 3318 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:31,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:31,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:31,891 INFO L129 PetriNetUnfolder]: 266/1338 cut-off events. [2021-08-13 02:42:31,891 INFO L130 PetriNetUnfolder]: For 2200/5875 co-relation queries the response was YES. [2021-08-13 02:42:31,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4910 conditions, 1338 events. 266/1338 cut-off events. For 2200/5875 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 13726 event pairs, 0 based on Foata normal form. 41/1337 useless extension candidates. Maximal degree in co-relation 4389. Up to 276 conditions per place. [2021-08-13 02:42:31,901 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 347 selfloop transitions, 118 changer transitions 0/485 dead transitions. [2021-08-13 02:42:31,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 485 transitions, 5678 flow [2021-08-13 02:42:31,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:31,903 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:31,903 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:31,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:31,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,905 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,905 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 43 predicate places. [2021-08-13 02:42:31,905 INFO L482 AbstractCegarLoop]: Abstraction has has 87 places, 485 transitions, 5678 flow [2021-08-13 02:42:31,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:31,907 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:31,907 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:31,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 02:42:31,907 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:31,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:31,907 INFO L82 PathProgramCache]: Analyzing trace with hash -405293647, now seen corresponding path program 6 times [2021-08-13 02:42:31,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:31,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503663065] [2021-08-13 02:42:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:31,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:31,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:31,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:31,953 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:31,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:31,961 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:31,975 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:31,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:32,002 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:32,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:32,023 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:32,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:32,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:32,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503663065] [2021-08-13 02:42:32,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503663065] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:32,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:32,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:32,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675874920] [2021-08-13 02:42:32,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:32,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:32,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:32,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:32,045 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:32,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 485 transitions, 5678 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:32,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:32,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:32,301 INFO L129 PetriNetUnfolder]: 267/1411 cut-off events. [2021-08-13 02:42:32,301 INFO L130 PetriNetUnfolder]: For 2923/7869 co-relation queries the response was YES. [2021-08-13 02:42:32,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5751 conditions, 1411 events. 267/1411 cut-off events. For 2923/7869 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 14898 event pairs, 0 based on Foata normal form. 78/1453 useless extension candidates. Maximal degree in co-relation 5114. Up to 304 conditions per place. [2021-08-13 02:42:32,313 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 450 selfloop transitions, 135 changer transitions 0/605 dead transitions. [2021-08-13 02:42:32,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 605 transitions, 8288 flow [2021-08-13 02:42:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:32,314 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:32,314 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:32,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,316 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,316 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 50 predicate places. [2021-08-13 02:42:32,316 INFO L482 AbstractCegarLoop]: Abstraction has has 94 places, 605 transitions, 8288 flow [2021-08-13 02:42:32,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,316 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:32,317 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:32,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 02:42:32,317 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:32,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:32,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1994425763, now seen corresponding path program 7 times [2021-08-13 02:42:32,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:32,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425077071] [2021-08-13 02:42:32,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:32,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:32,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:32,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:32,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:32,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:32,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:32,363 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:32,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:32,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:32,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:32,390 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:32,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:32,410 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:32,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:32,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:32,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425077071] [2021-08-13 02:42:32,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425077071] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:32,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:32,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:32,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648465494] [2021-08-13 02:42:32,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:32,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:32,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:32,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:32,432 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:32,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 605 transitions, 8288 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:32,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:32,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:32,726 INFO L129 PetriNetUnfolder]: 258/1446 cut-off events. [2021-08-13 02:42:32,726 INFO L130 PetriNetUnfolder]: For 4055/11761 co-relation queries the response was YES. [2021-08-13 02:42:32,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6489 conditions, 1446 events. 258/1446 cut-off events. For 4055/11761 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 15583 event pairs, 0 based on Foata normal form. 164/1565 useless extension candidates. Maximal degree in co-relation 5724. Up to 317 conditions per place. [2021-08-13 02:42:32,741 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 459 selfloop transitions, 139 changer transitions 0/618 dead transitions. [2021-08-13 02:42:32,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 618 transitions, 9666 flow [2021-08-13 02:42:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:32,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:32,743 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:32,743 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:32,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:32,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,745 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,745 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 57 predicate places. [2021-08-13 02:42:32,745 INFO L482 AbstractCegarLoop]: Abstraction has has 101 places, 618 transitions, 9666 flow [2021-08-13 02:42:32,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,746 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:32,746 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:32,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 02:42:32,746 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:32,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:32,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1399393075, now seen corresponding path program 8 times [2021-08-13 02:42:32,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:32,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835384658] [2021-08-13 02:42:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:32,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:32,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:32,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:32,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:32,781 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:32,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:32,791 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:32,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:32,804 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:32,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:32,822 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:32,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:32,853 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:32,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:32,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:32,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835384658] [2021-08-13 02:42:32,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835384658] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:32,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:32,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:32,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760322009] [2021-08-13 02:42:32,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:32,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:32,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:32,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:32,876 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:32,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 618 transitions, 9666 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:32,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:32,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:32,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:33,146 INFO L129 PetriNetUnfolder]: 262/1488 cut-off events. [2021-08-13 02:42:33,146 INFO L130 PetriNetUnfolder]: For 7049/25736 co-relation queries the response was YES. [2021-08-13 02:42:33,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7204 conditions, 1488 events. 262/1488 cut-off events. For 7049/25736 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 16142 event pairs, 0 based on Foata normal form. 325/1772 useless extension candidates. Maximal degree in co-relation 6359. Up to 319 conditions per place. [2021-08-13 02:42:33,164 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 461 selfloop transitions, 139 changer transitions 0/620 dead transitions. [2021-08-13 02:42:33,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 620 transitions, 10898 flow [2021-08-13 02:42:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:33,166 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:33,166 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:33,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,168 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,168 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 64 predicate places. [2021-08-13 02:42:33,168 INFO L482 AbstractCegarLoop]: Abstraction has has 108 places, 620 transitions, 10898 flow [2021-08-13 02:42:33,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,168 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:33,168 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:33,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 02:42:33,169 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:33,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:33,169 INFO L82 PathProgramCache]: Analyzing trace with hash -991865191, now seen corresponding path program 9 times [2021-08-13 02:42:33,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:33,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155174131] [2021-08-13 02:42:33,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:33,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:33,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:33,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:33,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:33,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:33,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:33,217 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:33,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:33,227 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:33,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:33,242 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:33,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:33,263 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:33,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:33,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:33,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155174131] [2021-08-13 02:42:33,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155174131] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:33,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:33,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:33,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963372155] [2021-08-13 02:42:33,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:33,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:33,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:33,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:33,283 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:33,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 620 transitions, 10898 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:33,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:33,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:33,487 INFO L129 PetriNetUnfolder]: 250/1448 cut-off events. [2021-08-13 02:42:33,487 INFO L130 PetriNetUnfolder]: For 7040/17286 co-relation queries the response was YES. [2021-08-13 02:42:33,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 1448 events. 250/1448 cut-off events. For 7040/17286 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 15673 event pairs, 0 based on Foata normal form. 162/1565 useless extension candidates. Maximal degree in co-relation 6811. Up to 318 conditions per place. [2021-08-13 02:42:33,502 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 460 selfloop transitions, 139 changer transitions 0/619 dead transitions. [2021-08-13 02:42:33,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 619 transitions, 12078 flow [2021-08-13 02:42:33,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:33,503 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:33,503 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:33,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,505 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,505 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 71 predicate places. [2021-08-13 02:42:33,505 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 619 transitions, 12078 flow [2021-08-13 02:42:33,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,506 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:33,506 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:33,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 02:42:33,506 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:33,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:33,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1189859887, now seen corresponding path program 10 times [2021-08-13 02:42:33,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:33,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986196230] [2021-08-13 02:42:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:33,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:33,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:33,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:33,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:33,530 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:33,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:33,537 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:33,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:33,550 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:33,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:33,565 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:33,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:33,584 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:33,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:33,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:33,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:33,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986196230] [2021-08-13 02:42:33,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986196230] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:33,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:33,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:33,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919660162] [2021-08-13 02:42:33,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:33,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:33,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:33,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:33,605 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:33,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 619 transitions, 12078 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:33,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:33,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:33,900 INFO L129 PetriNetUnfolder]: 243/1512 cut-off events. [2021-08-13 02:42:33,900 INFO L130 PetriNetUnfolder]: For 9483/21005 co-relation queries the response was YES. [2021-08-13 02:42:33,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8600 conditions, 1512 events. 243/1512 cut-off events. For 9483/21005 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 16813 event pairs, 0 based on Foata normal form. 162/1623 useless extension candidates. Maximal degree in co-relation 7505. Up to 335 conditions per place. [2021-08-13 02:42:33,917 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 472 selfloop transitions, 144 changer transitions 0/636 dead transitions. [2021-08-13 02:42:33,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 636 transitions, 13650 flow [2021-08-13 02:42:33,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:33,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:33,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:33,918 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:33,918 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:33,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:33,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,921 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,922 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 78 predicate places. [2021-08-13 02:42:33,922 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 636 transitions, 13650 flow [2021-08-13 02:42:33,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:33,922 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:33,922 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:33,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 02:42:33,922 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:33,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:33,922 INFO L82 PathProgramCache]: Analyzing trace with hash -918113627, now seen corresponding path program 11 times [2021-08-13 02:42:33,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:33,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357042207] [2021-08-13 02:42:33,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:33,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:33,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:33,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:34,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:34,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:34,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:34,017 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:34,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:34,036 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:34,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:34,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:34,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:34,100 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:34,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:34,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:34,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357042207] [2021-08-13 02:42:34,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357042207] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:34,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:34,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:34,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015111262] [2021-08-13 02:42:34,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:34,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:34,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:34,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:34,117 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:34,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 636 transitions, 13650 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:34,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:34,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:34,343 INFO L129 PetriNetUnfolder]: 240/1491 cut-off events. [2021-08-13 02:42:34,343 INFO L130 PetriNetUnfolder]: For 17135/44396 co-relation queries the response was YES. [2021-08-13 02:42:34,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9156 conditions, 1491 events. 240/1491 cut-off events. For 17135/44396 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 16553 event pairs, 0 based on Foata normal form. 325/1760 useless extension candidates. Maximal degree in co-relation 7999. Up to 334 conditions per place. [2021-08-13 02:42:34,357 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 471 selfloop transitions, 144 changer transitions 0/635 dead transitions. [2021-08-13 02:42:34,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 635 transitions, 14858 flow [2021-08-13 02:42:34,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:34,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:34,358 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:34,358 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:34,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,360 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,360 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 85 predicate places. [2021-08-13 02:42:34,360 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 635 transitions, 14858 flow [2021-08-13 02:42:34,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,360 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:34,360 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:34,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 02:42:34,360 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:34,361 INFO L82 PathProgramCache]: Analyzing trace with hash 927987865, now seen corresponding path program 12 times [2021-08-13 02:42:34,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:34,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528230592] [2021-08-13 02:42:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:34,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:34,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:34,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:34,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:34,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:34,384 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:34,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:34,394 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:34,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:34,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:34,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:34,426 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:34,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:34,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:34,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528230592] [2021-08-13 02:42:34,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528230592] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:34,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:34,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:34,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600330430] [2021-08-13 02:42:34,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:34,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:34,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:34,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:34,444 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:34,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 635 transitions, 14858 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:34,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:34,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:34,757 INFO L129 PetriNetUnfolder]: 241/1586 cut-off events. [2021-08-13 02:42:34,757 INFO L130 PetriNetUnfolder]: For 15118/29204 co-relation queries the response was YES. [2021-08-13 02:42:34,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10143 conditions, 1586 events. 241/1586 cut-off events. For 15118/29204 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 17991 event pairs, 0 based on Foata normal form. 133/1667 useless extension candidates. Maximal degree in co-relation 8798. Up to 343 conditions per place. [2021-08-13 02:42:34,774 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 468 selfloop transitions, 161 changer transitions 0/649 dead transitions. [2021-08-13 02:42:34,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 649 transitions, 16452 flow [2021-08-13 02:42:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:34,776 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:34,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:34,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:34,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,778 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,778 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 92 predicate places. [2021-08-13 02:42:34,778 INFO L482 AbstractCegarLoop]: Abstraction has has 136 places, 649 transitions, 16452 flow [2021-08-13 02:42:34,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,779 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:34,779 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:34,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-13 02:42:34,779 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:34,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:34,779 INFO L82 PathProgramCache]: Analyzing trace with hash 2076828333, now seen corresponding path program 13 times [2021-08-13 02:42:34,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:34,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167726248] [2021-08-13 02:42:34,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:34,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:34,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:34,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:34,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:34,798 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:34,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:34,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:34,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:34,816 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:34,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:34,833 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:34,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:34,853 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:34,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:34,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:34,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167726248] [2021-08-13 02:42:34,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167726248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:34,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:34,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:34,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211866404] [2021-08-13 02:42:34,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:34,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:34,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:34,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:34,873 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:34,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 649 transitions, 16452 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:34,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:34,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:34,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:35,159 INFO L129 PetriNetUnfolder]: 246/1591 cut-off events. [2021-08-13 02:42:35,159 INFO L130 PetriNetUnfolder]: For 17769/32945 co-relation queries the response was YES. [2021-08-13 02:42:35,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10763 conditions, 1591 events. 246/1591 cut-off events. For 17769/32945 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 18000 event pairs, 0 based on Foata normal form. 118/1661 useless extension candidates. Maximal degree in co-relation 9352. Up to 342 conditions per place. [2021-08-13 02:42:35,175 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 473 selfloop transitions, 155 changer transitions 0/648 dead transitions. [2021-08-13 02:42:35,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 648 transitions, 17682 flow [2021-08-13 02:42:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:35,176 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:35,177 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:35,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,179 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,179 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 99 predicate places. [2021-08-13 02:42:35,179 INFO L482 AbstractCegarLoop]: Abstraction has has 143 places, 648 transitions, 17682 flow [2021-08-13 02:42:35,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,179 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:35,179 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:35,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-13 02:42:35,179 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:35,180 INFO L82 PathProgramCache]: Analyzing trace with hash -859726089, now seen corresponding path program 14 times [2021-08-13 02:42:35,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:35,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715389754] [2021-08-13 02:42:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:35,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:35,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:35,198 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:35,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:35,204 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:35,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:35,214 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:35,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:35,227 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:35,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:35,246 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:35,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:35,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:35,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715389754] [2021-08-13 02:42:35,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715389754] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:35,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:35,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:35,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753549278] [2021-08-13 02:42:35,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:35,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:35,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:35,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:35,264 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:35,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 648 transitions, 17682 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:35,265 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:35,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:35,552 INFO L129 PetriNetUnfolder]: 242/1605 cut-off events. [2021-08-13 02:42:35,552 INFO L130 PetriNetUnfolder]: For 23512/42477 co-relation queries the response was YES. [2021-08-13 02:42:35,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11459 conditions, 1605 events. 242/1605 cut-off events. For 23512/42477 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 18242 event pairs, 0 based on Foata normal form. 146/1698 useless extension candidates. Maximal degree in co-relation 9948. Up to 344 conditions per place. [2021-08-13 02:42:35,566 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 466 selfloop transitions, 164 changer transitions 0/650 dead transitions. [2021-08-13 02:42:35,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 650 transitions, 18998 flow [2021-08-13 02:42:35,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:35,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:35,567 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:35,567 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:35,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,569 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,569 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 106 predicate places. [2021-08-13 02:42:35,569 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 650 transitions, 18998 flow [2021-08-13 02:42:35,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,570 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:35,570 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:35,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-13 02:42:35,570 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:35,570 INFO L82 PathProgramCache]: Analyzing trace with hash 856854033, now seen corresponding path program 15 times [2021-08-13 02:42:35,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:35,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345746923] [2021-08-13 02:42:35,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:35,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:35,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:35,588 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:35,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:35,594 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:35,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:35,605 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:35,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:35,620 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:35,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:35,642 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:35,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:35,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:35,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345746923] [2021-08-13 02:42:35,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345746923] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:35,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:35,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:35,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816344024] [2021-08-13 02:42:35,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:35,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:35,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:35,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:35,661 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:35,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 650 transitions, 18998 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:35,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:35,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:35,922 INFO L129 PetriNetUnfolder]: 234/1568 cut-off events. [2021-08-13 02:42:35,922 INFO L130 PetriNetUnfolder]: For 34945/69894 co-relation queries the response was YES. [2021-08-13 02:42:35,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11990 conditions, 1568 events. 234/1568 cut-off events. For 34945/69894 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 17828 event pairs, 0 based on Foata normal form. 199/1711 useless extension candidates. Maximal degree in co-relation 10415. Up to 343 conditions per place. [2021-08-13 02:42:35,935 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 472 selfloop transitions, 157 changer transitions 0/649 dead transitions. [2021-08-13 02:42:35,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 649 transitions, 20226 flow [2021-08-13 02:42:35,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:35,937 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:35,937 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:35,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:35,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,938 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,939 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 113 predicate places. [2021-08-13 02:42:35,939 INFO L482 AbstractCegarLoop]: Abstraction has has 157 places, 649 transitions, 20226 flow [2021-08-13 02:42:35,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:35,939 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:35,939 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:35,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-13 02:42:35,939 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:35,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:35,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1519549749, now seen corresponding path program 16 times [2021-08-13 02:42:35,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:35,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025257820] [2021-08-13 02:42:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:35,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:35,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:35,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:35,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:35,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:35,963 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:35,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:35,973 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:35,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:35,995 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:35,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:36,014 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:36,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:36,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:36,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025257820] [2021-08-13 02:42:36,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025257820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:36,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:36,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:36,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229365182] [2021-08-13 02:42:36,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:36,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:36,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:36,032 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:36,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 649 transitions, 20226 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:36,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:36,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:36,351 INFO L129 PetriNetUnfolder]: 230/1624 cut-off events. [2021-08-13 02:42:36,351 INFO L130 PetriNetUnfolder]: For 37321/67386 co-relation queries the response was YES. [2021-08-13 02:42:36,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12938 conditions, 1624 events. 230/1624 cut-off events. For 37321/67386 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 18783 event pairs, 0 based on Foata normal form. 171/1738 useless extension candidates. Maximal degree in co-relation 11161. Up to 355 conditions per place. [2021-08-13 02:42:36,365 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 476 selfloop transitions, 166 changer transitions 0/662 dead transitions. [2021-08-13 02:42:36,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 662 transitions, 21926 flow [2021-08-13 02:42:36,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:36,366 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:36,366 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:36,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,368 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,368 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 120 predicate places. [2021-08-13 02:42:36,368 INFO L482 AbstractCegarLoop]: Abstraction has has 164 places, 662 transitions, 21926 flow [2021-08-13 02:42:36,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,368 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:36,368 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:36,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-13 02:42:36,369 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:36,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1087943799, now seen corresponding path program 17 times [2021-08-13 02:42:36,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:36,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443230517] [2021-08-13 02:42:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:36,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:36,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:36,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:36,385 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:36,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:36,392 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:36,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:36,404 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:36,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:36,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:36,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:36,443 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:36,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:36,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:36,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443230517] [2021-08-13 02:42:36,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443230517] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:36,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:36,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:36,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102329135] [2021-08-13 02:42:36,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:36,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:36,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:36,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:36,466 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:36,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 662 transitions, 21926 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:36,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:36,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:36,751 INFO L129 PetriNetUnfolder]: 228/1613 cut-off events. [2021-08-13 02:42:36,751 INFO L130 PetriNetUnfolder]: For 33927/54303 co-relation queries the response was YES. [2021-08-13 02:42:36,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13539 conditions, 1613 events. 228/1613 cut-off events. For 33927/54303 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 18659 event pairs, 0 based on Foata normal form. 118/1675 useless extension candidates. Maximal degree in co-relation 11695. Up to 354 conditions per place. [2021-08-13 02:42:36,766 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 474 selfloop transitions, 167 changer transitions 0/661 dead transitions. [2021-08-13 02:42:36,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 661 transitions, 23174 flow [2021-08-13 02:42:36,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:36,767 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:36,767 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:36,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:36,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,768 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,769 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 127 predicate places. [2021-08-13 02:42:36,769 INFO L482 AbstractCegarLoop]: Abstraction has has 171 places, 661 transitions, 23174 flow [2021-08-13 02:42:36,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,769 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:36,769 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:36,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-13 02:42:36,769 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:36,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:36,769 INFO L82 PathProgramCache]: Analyzing trace with hash -806932297, now seen corresponding path program 18 times [2021-08-13 02:42:36,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:36,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245491443] [2021-08-13 02:42:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:36,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:36,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:36,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:36,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:36,786 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:36,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:36,792 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:36,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:36,802 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:36,826 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:36,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:36,845 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:36,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:36,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:36,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245491443] [2021-08-13 02:42:36,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245491443] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:36,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:36,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:36,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589074461] [2021-08-13 02:42:36,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:36,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:36,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:36,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:36,863 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:36,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 661 transitions, 23174 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:36,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:36,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:36,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:37,234 INFO L129 PetriNetUnfolder]: 226/1822 cut-off events. [2021-08-13 02:42:37,234 INFO L130 PetriNetUnfolder]: For 64767/112225 co-relation queries the response was YES. [2021-08-13 02:42:37,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15578 conditions, 1822 events. 226/1822 cut-off events. For 64767/112225 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 21993 event pairs, 0 based on Foata normal form. 235/1988 useless extension candidates. Maximal degree in co-relation 13207. Up to 404 conditions per place. [2021-08-13 02:42:37,250 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 530 selfloop transitions, 167 changer transitions 0/717 dead transitions. [2021-08-13 02:42:37,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 717 transitions, 26584 flow [2021-08-13 02:42:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:37,251 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:37,251 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:37,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,252 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,252 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 134 predicate places. [2021-08-13 02:42:37,253 INFO L482 AbstractCegarLoop]: Abstraction has has 178 places, 717 transitions, 26584 flow [2021-08-13 02:42:37,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,253 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:37,253 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:37,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-13 02:42:37,253 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:37,253 INFO L82 PathProgramCache]: Analyzing trace with hash 669164169, now seen corresponding path program 19 times [2021-08-13 02:42:37,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:37,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904326702] [2021-08-13 02:42:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:37,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:37,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:37,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:37,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:37,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:37,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:37,276 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:37,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:37,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:37,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:37,297 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:37,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:37,319 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:37,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:37,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904326702] [2021-08-13 02:42:37,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904326702] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:37,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:37,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:37,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87146621] [2021-08-13 02:42:37,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:37,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:37,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:37,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:37,339 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:37,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 717 transitions, 26584 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:37,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:37,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:37,686 INFO L129 PetriNetUnfolder]: 228/1908 cut-off events. [2021-08-13 02:42:37,686 INFO L130 PetriNetUnfolder]: For 48469/71433 co-relation queries the response was YES. [2021-08-13 02:42:37,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16703 conditions, 1908 events. 228/1908 cut-off events. For 48469/71433 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 23402 event pairs, 0 based on Foata normal form. 116/1963 useless extension candidates. Maximal degree in co-relation 14087. Up to 417 conditions per place. [2021-08-13 02:42:37,702 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 539 selfloop transitions, 171 changer transitions 0/730 dead transitions. [2021-08-13 02:42:37,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 730 transitions, 28498 flow [2021-08-13 02:42:37,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:37,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:37,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:37,703 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:37,703 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:37,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:37,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,704 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,704 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 141 predicate places. [2021-08-13 02:42:37,704 INFO L482 AbstractCegarLoop]: Abstraction has has 185 places, 730 transitions, 28498 flow [2021-08-13 02:42:37,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,705 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:37,705 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:37,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-13 02:42:37,705 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:37,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:37,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1081081535, now seen corresponding path program 20 times [2021-08-13 02:42:37,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:37,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206278047] [2021-08-13 02:42:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:37,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:37,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:37,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:37,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:37,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:37,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:37,733 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:37,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:37,742 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:37,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:37,754 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:37,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:37,776 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:37,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:37,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:37,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206278047] [2021-08-13 02:42:37,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206278047] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:37,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:37,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:37,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806086108] [2021-08-13 02:42:37,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:37,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:37,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:37,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:37,795 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:37,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 730 transitions, 28498 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:37,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:37,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:37,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:38,226 INFO L129 PetriNetUnfolder]: 228/1905 cut-off events. [2021-08-13 02:42:38,226 INFO L130 PetriNetUnfolder]: For 60392/88201 co-relation queries the response was YES. [2021-08-13 02:42:38,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17389 conditions, 1905 events. 228/1905 cut-off events. For 60392/88201 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 23404 event pairs, 0 based on Foata normal form. 146/1989 useless extension candidates. Maximal degree in co-relation 14684. Up to 416 conditions per place. [2021-08-13 02:42:38,246 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 539 selfloop transitions, 170 changer transitions 0/729 dead transitions. [2021-08-13 02:42:38,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 729 transitions, 29876 flow [2021-08-13 02:42:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:38,247 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:38,247 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:38,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,249 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,249 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 148 predicate places. [2021-08-13 02:42:38,249 INFO L482 AbstractCegarLoop]: Abstraction has has 192 places, 729 transitions, 29876 flow [2021-08-13 02:42:38,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,249 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:38,249 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:38,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-13 02:42:38,250 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:38,250 INFO L82 PathProgramCache]: Analyzing trace with hash -53028929, now seen corresponding path program 21 times [2021-08-13 02:42:38,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:38,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175116454] [2021-08-13 02:42:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:38,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:38,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:38,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:38,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:38,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:38,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:38,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:38,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:38,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:38,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:38,314 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:38,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:38,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:38,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:38,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:38,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175116454] [2021-08-13 02:42:38,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175116454] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:38,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:38,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:38,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842815317] [2021-08-13 02:42:38,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:38,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:38,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:38,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:38,358 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:38,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 729 transitions, 29876 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,358 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:38,358 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:38,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:38,767 INFO L129 PetriNetUnfolder]: 220/1868 cut-off events. [2021-08-13 02:42:38,767 INFO L130 PetriNetUnfolder]: For 60192/85756 co-relation queries the response was YES. [2021-08-13 02:42:38,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17993 conditions, 1868 events. 220/1868 cut-off events. For 60192/85756 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 22884 event pairs, 0 based on Foata normal form. 116/1911 useless extension candidates. Maximal degree in co-relation 15201. Up to 415 conditions per place. [2021-08-13 02:42:38,786 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 538 selfloop transitions, 170 changer transitions 0/728 dead transitions. [2021-08-13 02:42:38,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 728 transitions, 31250 flow [2021-08-13 02:42:38,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:38,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:38,788 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:38,788 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:38,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:38,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,789 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,790 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 155 predicate places. [2021-08-13 02:42:38,790 INFO L482 AbstractCegarLoop]: Abstraction has has 199 places, 728 transitions, 31250 flow [2021-08-13 02:42:38,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,790 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:38,790 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:38,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-13 02:42:38,790 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:38,790 INFO L82 PathProgramCache]: Analyzing trace with hash 521468273, now seen corresponding path program 22 times [2021-08-13 02:42:38,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:38,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179847678] [2021-08-13 02:42:38,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:38,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:38,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:38,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:38,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:38,809 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:38,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:38,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:38,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:38,826 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:38,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:38,843 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:38,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:38,873 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:38,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:38,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:38,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179847678] [2021-08-13 02:42:38,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179847678] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:38,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:38,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:38,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963073853] [2021-08-13 02:42:38,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:38,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:38,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:38,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:38,897 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:38,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 728 transitions, 31250 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:38,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:38,897 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:38,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:39,361 INFO L129 PetriNetUnfolder]: 229/1907 cut-off events. [2021-08-13 02:42:39,361 INFO L130 PetriNetUnfolder]: For 74536/105293 co-relation queries the response was YES. [2021-08-13 02:42:39,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18772 conditions, 1907 events. 229/1907 cut-off events. For 74536/105293 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 23425 event pairs, 0 based on Foata normal form. 146/1990 useless extension candidates. Maximal degree in co-relation 15895. Up to 414 conditions per place. [2021-08-13 02:42:39,382 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 541 selfloop transitions, 166 changer transitions 0/727 dead transitions. [2021-08-13 02:42:39,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 727 transitions, 32620 flow [2021-08-13 02:42:39,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:39,384 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:39,384 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:39,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,385 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,385 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 162 predicate places. [2021-08-13 02:42:39,385 INFO L482 AbstractCegarLoop]: Abstraction has has 206 places, 727 transitions, 32620 flow [2021-08-13 02:42:39,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,386 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:39,386 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:39,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-13 02:42:39,386 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:39,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:39,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1352820231, now seen corresponding path program 23 times [2021-08-13 02:42:39,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:39,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823332662] [2021-08-13 02:42:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:39,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:39,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:39,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:39,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:39,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:39,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:39,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:39,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:39,421 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:39,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:39,436 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:39,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:39,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:39,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:39,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:39,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823332662] [2021-08-13 02:42:39,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823332662] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:39,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:39,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:39,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682729067] [2021-08-13 02:42:39,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:39,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:39,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:39,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:39,479 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:39,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 727 transitions, 32620 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:39,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:39,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:39,939 INFO L129 PetriNetUnfolder]: 229/1907 cut-off events. [2021-08-13 02:42:39,939 INFO L130 PetriNetUnfolder]: For 116981/179209 co-relation queries the response was YES. [2021-08-13 02:42:39,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19459 conditions, 1907 events. 229/1907 cut-off events. For 116981/179209 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 23392 event pairs, 0 based on Foata normal form. 235/2079 useless extension candidates. Maximal degree in co-relation 16499. Up to 413 conditions per place. [2021-08-13 02:42:39,957 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 540 selfloop transitions, 166 changer transitions 0/726 dead transitions. [2021-08-13 02:42:39,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 726 transitions, 33986 flow [2021-08-13 02:42:39,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:39,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:39,958 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:39,958 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:39,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:39,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,959 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,959 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 169 predicate places. [2021-08-13 02:42:39,959 INFO L482 AbstractCegarLoop]: Abstraction has has 213 places, 726 transitions, 33986 flow [2021-08-13 02:42:39,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:39,960 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:39,960 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:39,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-13 02:42:39,960 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:39,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:39,960 INFO L82 PathProgramCache]: Analyzing trace with hash 104422249, now seen corresponding path program 24 times [2021-08-13 02:42:39,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:39,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142837478] [2021-08-13 02:42:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:39,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:39,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:39,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:39,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:39,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:39,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:39,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:39,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:39,991 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:39,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:40,005 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:40,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:40,024 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:40,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:40,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:40,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142837478] [2021-08-13 02:42:40,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142837478] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:40,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:40,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:40,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654204194] [2021-08-13 02:42:40,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:40,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:40,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:40,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:40,040 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:40,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 726 transitions, 33986 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:40,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:40,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:40,475 INFO L129 PetriNetUnfolder]: 214/2136 cut-off events. [2021-08-13 02:42:40,475 INFO L130 PetriNetUnfolder]: For 125139/184580 co-relation queries the response was YES. [2021-08-13 02:42:40,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22261 conditions, 2136 events. 214/2136 cut-off events. For 125139/184580 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 27529 event pairs, 0 based on Foata normal form. 201/2259 useless extension candidates. Maximal degree in co-relation 18436. Up to 483 conditions per place. [2021-08-13 02:42:40,494 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 587 selfloop transitions, 189 changer transitions 0/796 dead transitions. [2021-08-13 02:42:40,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 796 transitions, 38898 flow [2021-08-13 02:42:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:40,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:40,495 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:40,495 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:40,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:40,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:40,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:40,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,497 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,497 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 176 predicate places. [2021-08-13 02:42:40,497 INFO L482 AbstractCegarLoop]: Abstraction has has 220 places, 796 transitions, 38898 flow [2021-08-13 02:42:40,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,497 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:40,497 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:40,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-13 02:42:40,497 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:40,497 INFO L82 PathProgramCache]: Analyzing trace with hash -580118471, now seen corresponding path program 25 times [2021-08-13 02:42:40,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:40,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599542275] [2021-08-13 02:42:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:40,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:40,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:40,517 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:40,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:40,523 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:40,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:40,533 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:40,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:40,545 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:40,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:40,561 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:40,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:40,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:40,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599542275] [2021-08-13 02:42:40,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599542275] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:40,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:40,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:40,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424682943] [2021-08-13 02:42:40,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:40,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:40,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:40,578 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:40,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 796 transitions, 38898 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:40,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:40,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:40,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:41,072 INFO L129 PetriNetUnfolder]: 215/2137 cut-off events. [2021-08-13 02:42:41,072 INFO L130 PetriNetUnfolder]: For 124094/173636 co-relation queries the response was YES. [2021-08-13 02:42:41,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23016 conditions, 2137 events. 215/2137 cut-off events. For 124094/173636 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 27550 event pairs, 0 based on Foata normal form. 174/2232 useless extension candidates. Maximal degree in co-relation 19084. Up to 482 conditions per place. [2021-08-13 02:42:41,092 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 586 selfloop transitions, 189 changer transitions 0/795 dead transitions. [2021-08-13 02:42:41,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 795 transitions, 40398 flow [2021-08-13 02:42:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:41,093 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:41,093 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:41,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,095 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,095 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 183 predicate places. [2021-08-13 02:42:41,095 INFO L482 AbstractCegarLoop]: Abstraction has has 227 places, 795 transitions, 40398 flow [2021-08-13 02:42:41,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,095 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:41,095 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:41,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-13 02:42:41,095 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:41,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:41,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1416147205, now seen corresponding path program 26 times [2021-08-13 02:42:41,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:41,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741658873] [2021-08-13 02:42:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:41,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:41,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:41,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:41,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:41,112 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:41,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:41,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:41,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:41,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:41,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:41,145 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:41,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:41,164 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:41,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:41,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:41,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741658873] [2021-08-13 02:42:41,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741658873] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:41,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:41,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:41,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401291964] [2021-08-13 02:42:41,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:41,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:41,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:41,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:41,182 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:41,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 795 transitions, 40398 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:41,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:41,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:41,736 INFO L129 PetriNetUnfolder]: 215/2126 cut-off events. [2021-08-13 02:42:41,737 INFO L130 PetriNetUnfolder]: For 135253/186937 co-relation queries the response was YES. [2021-08-13 02:42:41,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23735 conditions, 2126 events. 215/2126 cut-off events. For 135253/186937 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 27353 event pairs, 0 based on Foata normal form. 174/2223 useless extension candidates. Maximal degree in co-relation 19698. Up to 481 conditions per place. [2021-08-13 02:42:41,757 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 590 selfloop transitions, 184 changer transitions 0/794 dead transitions. [2021-08-13 02:42:41,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 794 transitions, 41894 flow [2021-08-13 02:42:41,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:41,758 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:41,758 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:41,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:41,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,759 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,759 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 190 predicate places. [2021-08-13 02:42:41,759 INFO L482 AbstractCegarLoop]: Abstraction has has 234 places, 794 transitions, 41894 flow [2021-08-13 02:42:41,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,759 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:41,759 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:41,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-13 02:42:41,760 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:41,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1216394373, now seen corresponding path program 27 times [2021-08-13 02:42:41,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:41,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304006167] [2021-08-13 02:42:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:41,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:41,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:41,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:41,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:41,778 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:41,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:41,784 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:41,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:41,793 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:41,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:41,810 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:41,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:41,827 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:41,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:41,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:41,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304006167] [2021-08-13 02:42:41,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304006167] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:41,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:41,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:41,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030323460] [2021-08-13 02:42:41,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:41,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:41,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:41,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:41,846 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:41,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 794 transitions, 41894 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:41,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:41,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:41,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:42,320 INFO L129 PetriNetUnfolder]: 214/2136 cut-off events. [2021-08-13 02:42:42,320 INFO L130 PetriNetUnfolder]: For 113649/147025 co-relation queries the response was YES. [2021-08-13 02:42:42,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24517 conditions, 2136 events. 214/2136 cut-off events. For 113649/147025 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 27509 event pairs, 0 based on Foata normal form. 118/2176 useless extension candidates. Maximal degree in co-relation 20377. Up to 480 conditions per place. [2021-08-13 02:42:42,342 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 589 selfloop transitions, 184 changer transitions 0/793 dead transitions. [2021-08-13 02:42:42,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 793 transitions, 43386 flow [2021-08-13 02:42:42,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:42,343 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:42,343 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:42,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,345 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,345 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 197 predicate places. [2021-08-13 02:42:42,345 INFO L482 AbstractCegarLoop]: Abstraction has has 241 places, 793 transitions, 43386 flow [2021-08-13 02:42:42,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,345 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:42,345 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:42,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-13 02:42:42,345 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:42,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1772785765, now seen corresponding path program 28 times [2021-08-13 02:42:42,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:42,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38923665] [2021-08-13 02:42:42,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:42,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:42,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:42,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:42,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:42,361 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:42,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:42,367 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:42,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:42,377 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:42,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:42,391 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:42,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:42,408 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:42,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:42,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:42,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38923665] [2021-08-13 02:42:42,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38923665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:42,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:42,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:42,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432446548] [2021-08-13 02:42:42,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:42,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:42,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:42,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:42,426 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:42,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 793 transitions, 43386 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:42,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:42,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:42,949 INFO L129 PetriNetUnfolder]: 215/2133 cut-off events. [2021-08-13 02:42:42,950 INFO L130 PetriNetUnfolder]: For 136559/176160 co-relation queries the response was YES. [2021-08-13 02:42:42,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25254 conditions, 2133 events. 215/2133 cut-off events. For 136559/176160 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 27455 event pairs, 0 based on Foata normal form. 146/2198 useless extension candidates. Maximal degree in co-relation 21013. Up to 479 conditions per place. [2021-08-13 02:42:42,970 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 589 selfloop transitions, 183 changer transitions 0/792 dead transitions. [2021-08-13 02:42:42,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 792 transitions, 44874 flow [2021-08-13 02:42:42,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:42,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:42,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:42,971 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:42,971 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:42,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:42,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,973 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,973 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 204 predicate places. [2021-08-13 02:42:42,973 INFO L482 AbstractCegarLoop]: Abstraction has has 248 places, 792 transitions, 44874 flow [2021-08-13 02:42:42,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:42,973 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:42,973 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:42,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-13 02:42:42,973 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:42,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1218730893, now seen corresponding path program 29 times [2021-08-13 02:42:42,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:42,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312942095] [2021-08-13 02:42:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:42,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:42,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:42,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:42,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:42,989 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:42:42,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:42:42,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:42:42,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:42:43,003 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:43,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:43,015 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:43,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:43,031 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:43,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:43,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:43,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:43,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312942095] [2021-08-13 02:42:43,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312942095] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:43,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:43,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:43,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212348850] [2021-08-13 02:42:43,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:43,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:43,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:43,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:43,048 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:43,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 792 transitions, 44874 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:43,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:43,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:43,603 INFO L129 PetriNetUnfolder]: 215/2134 cut-off events. [2021-08-13 02:42:43,604 INFO L130 PetriNetUnfolder]: For 208997/288949 co-relation queries the response was YES. [2021-08-13 02:42:43,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26003 conditions, 2134 events. 215/2134 cut-off events. For 208997/288949 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 27502 event pairs, 0 based on Foata normal form. 235/2289 useless extension candidates. Maximal degree in co-relation 21663. Up to 478 conditions per place. [2021-08-13 02:42:43,625 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 556 selfloop transitions, 150 changer transitions 65/791 dead transitions. [2021-08-13 02:42:43,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 791 transitions, 46358 flow [2021-08-13 02:42:43,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:43,626 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:43,626 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:43,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:43,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:43,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:43,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,627 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,627 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 211 predicate places. [2021-08-13 02:42:43,627 INFO L482 AbstractCegarLoop]: Abstraction has has 255 places, 791 transitions, 46358 flow [2021-08-13 02:42:43,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,627 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:43,627 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:43,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-13 02:42:43,628 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:43,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:43,628 INFO L82 PathProgramCache]: Analyzing trace with hash 2136725427, now seen corresponding path program 30 times [2021-08-13 02:42:43,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:43,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046013907] [2021-08-13 02:42:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:43,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:43,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:43,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:43,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:43,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:43,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:43,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:43,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:43,665 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:42:43,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:42:43,692 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:43,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:43,719 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:43,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:43,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:43,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046013907] [2021-08-13 02:42:43,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046013907] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:43,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:43,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:43,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003064775] [2021-08-13 02:42:43,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:43,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:43,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:43,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:43,738 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:43,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 791 transitions, 46358 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:43,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:43,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:43,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:44,361 INFO L129 PetriNetUnfolder]: 219/2306 cut-off events. [2021-08-13 02:42:44,362 INFO L130 PetriNetUnfolder]: For 211525/287274 co-relation queries the response was YES. [2021-08-13 02:42:44,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28413 conditions, 2306 events. 219/2306 cut-off events. For 211525/287274 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 30412 event pairs, 0 based on Foata normal form. 195/2419 useless extension candidates. Maximal degree in co-relation 23432. Up to 511 conditions per place. [2021-08-13 02:42:44,384 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 547 selfloop transitions, 201 changer transitions 67/835 dead transitions. [2021-08-13 02:42:44,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 835 transitions, 50628 flow [2021-08-13 02:42:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:44,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:44,385 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:44,385 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:44,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:44,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:44,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:44,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:44,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:44,386 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:44,386 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 218 predicate places. [2021-08-13 02:42:44,386 INFO L482 AbstractCegarLoop]: Abstraction has has 262 places, 835 transitions, 50628 flow [2021-08-13 02:42:44,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:44,387 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:44,387 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:44,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-13 02:42:44,387 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:44,387 INFO L82 PathProgramCache]: Analyzing trace with hash -639423453, now seen corresponding path program 31 times [2021-08-13 02:42:44,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:44,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726312108] [2021-08-13 02:42:44,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:44,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:44,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:44,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:44,407 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:44,420 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:44,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:44,436 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:44,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:44,456 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:44,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:44,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:44,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:44,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726312108] [2021-08-13 02:42:44,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726312108] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:44,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:44,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:44,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79393601] [2021-08-13 02:42:44,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:44,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:44,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:44,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:44,477 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:44,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 835 transitions, 50628 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:44,478 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:44,478 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:44,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:45,188 INFO L129 PetriNetUnfolder]: 218/2298 cut-off events. [2021-08-13 02:42:45,188 INFO L130 PetriNetUnfolder]: For 211021/283290 co-relation queries the response was YES. [2021-08-13 02:42:45,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29179 conditions, 2298 events. 218/2298 cut-off events. For 211021/283290 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 30242 event pairs, 0 based on Foata normal form. 282/2500 useless extension candidates. Maximal degree in co-relation 24087. Up to 510 conditions per place. [2021-08-13 02:42:45,216 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 565 selfloop transitions, 182 changer transitions 67/834 dead transitions. [2021-08-13 02:42:45,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 834 transitions, 52194 flow [2021-08-13 02:42:45,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:45,218 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:45,218 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:45,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:45,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:45,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:45,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:45,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:45,219 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:45,219 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 225 predicate places. [2021-08-13 02:42:45,219 INFO L482 AbstractCegarLoop]: Abstraction has has 269 places, 834 transitions, 52194 flow [2021-08-13 02:42:45,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:45,219 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:45,220 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:45,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-13 02:42:45,220 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1545052105, now seen corresponding path program 32 times [2021-08-13 02:42:45,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:45,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743720843] [2021-08-13 02:42:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:45,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:45,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:45,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:45,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:45,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:45,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:45,244 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:45,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:45,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:45,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:45,291 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:45,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:45,310 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:45,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:45,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:45,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743720843] [2021-08-13 02:42:45,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743720843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:45,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:45,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:45,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124272279] [2021-08-13 02:42:45,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:45,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:45,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:45,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:45,332 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:45,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 834 transitions, 52194 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:45,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:45,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:45,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:46,032 INFO L129 PetriNetUnfolder]: 219/2355 cut-off events. [2021-08-13 02:42:46,032 INFO L130 PetriNetUnfolder]: For 152815/185880 co-relation queries the response was YES. [2021-08-13 02:42:46,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30456 conditions, 2355 events. 219/2355 cut-off events. For 152815/185880 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31257 event pairs, 0 based on Foata normal form. 109/2383 useless extension candidates. Maximal degree in co-relation 25075. Up to 520 conditions per place. [2021-08-13 02:42:46,059 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 552 selfloop transitions, 204 changer transitions 69/845 dead transitions. [2021-08-13 02:42:46,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 845 transitions, 54548 flow [2021-08-13 02:42:46,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:46,061 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:46,061 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:46,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,063 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,063 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 232 predicate places. [2021-08-13 02:42:46,063 INFO L482 AbstractCegarLoop]: Abstraction has has 276 places, 845 transitions, 54548 flow [2021-08-13 02:42:46,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,063 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:46,063 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:46,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-13 02:42:46,063 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:46,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1535132151, now seen corresponding path program 33 times [2021-08-13 02:42:46,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:46,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611488005] [2021-08-13 02:42:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:46,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:46,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:46,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:46,086 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:46,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:46,103 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:46,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:46,117 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:46,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:46,135 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:46,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:46,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:46,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611488005] [2021-08-13 02:42:46,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611488005] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:46,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:46,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:46,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195674274] [2021-08-13 02:42:46,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:46,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:46,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:46,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:46,153 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:46,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 845 transitions, 54548 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:46,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:46,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:46,807 INFO L129 PetriNetUnfolder]: 220/2352 cut-off events. [2021-08-13 02:42:46,807 INFO L130 PetriNetUnfolder]: For 177775/217057 co-relation queries the response was YES. [2021-08-13 02:42:46,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31241 conditions, 2352 events. 220/2352 cut-off events. For 177775/217057 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 31194 event pairs, 0 based on Foata normal form. 130/2401 useless extension candidates. Maximal degree in co-relation 25748. Up to 519 conditions per place. [2021-08-13 02:42:46,830 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 554 selfloop transitions, 201 changer transitions 69/844 dead transitions. [2021-08-13 02:42:46,831 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 844 transitions, 56130 flow [2021-08-13 02:42:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:46,832 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:46,832 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:46,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:46,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,833 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,833 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 239 predicate places. [2021-08-13 02:42:46,833 INFO L482 AbstractCegarLoop]: Abstraction has has 283 places, 844 transitions, 56130 flow [2021-08-13 02:42:46,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,833 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:46,833 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:46,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-13 02:42:46,833 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:46,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1761190887, now seen corresponding path program 34 times [2021-08-13 02:42:46,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:46,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063547182] [2021-08-13 02:42:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:46,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:46,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:46,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:46,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:46,857 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:46,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:46,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:42:46,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:42:46,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:46,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:46,909 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:46,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:46,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:46,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063547182] [2021-08-13 02:42:46,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063547182] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:46,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:46,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:46,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444800689] [2021-08-13 02:42:46,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:46,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:46,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:46,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:46,929 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:46,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 844 transitions, 56130 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:46,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:46,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:46,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:47,687 INFO L129 PetriNetUnfolder]: 219/2358 cut-off events. [2021-08-13 02:42:47,687 INFO L130 PetriNetUnfolder]: For 239994/313168 co-relation queries the response was YES. [2021-08-13 02:42:47,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32055 conditions, 2358 events. 219/2358 cut-off events. For 239994/313168 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31296 event pairs, 0 based on Foata normal form. 194/2472 useless extension candidates. Maximal degree in co-relation 26452. Up to 518 conditions per place. [2021-08-13 02:42:47,711 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 549 selfloop transitions, 202 changer transitions 72/843 dead transitions. [2021-08-13 02:42:47,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 843 transitions, 57708 flow [2021-08-13 02:42:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:47,712 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:47,712 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:47,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:47,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:47,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:47,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:47,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:47,714 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:47,714 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 246 predicate places. [2021-08-13 02:42:47,714 INFO L482 AbstractCegarLoop]: Abstraction has has 290 places, 843 transitions, 57708 flow [2021-08-13 02:42:47,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:47,714 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:47,714 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:47,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-13 02:42:47,714 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:47,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash -993837255, now seen corresponding path program 35 times [2021-08-13 02:42:47,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:47,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748582587] [2021-08-13 02:42:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:47,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:47,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:47,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:47,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:47,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:47,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:47,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:47,757 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:47,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:47,779 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:47,796 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:47,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:47,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748582587] [2021-08-13 02:42:47,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748582587] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:47,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:47,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:47,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847178007] [2021-08-13 02:42:47,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:47,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:47,813 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:47,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 843 transitions, 57708 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:47,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:47,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:47,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:48,397 INFO L129 PetriNetUnfolder]: 220/2350 cut-off events. [2021-08-13 02:42:48,397 INFO L130 PetriNetUnfolder]: For 197860/239711 co-relation queries the response was YES. [2021-08-13 02:42:48,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32819 conditions, 2350 events. 220/2350 cut-off events. For 197860/239711 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 31206 event pairs, 0 based on Foata normal form. 128/2397 useless extension candidates. Maximal degree in co-relation 27108. Up to 517 conditions per place. [2021-08-13 02:42:48,421 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 547 selfloop transitions, 200 changer transitions 75/842 dead transitions. [2021-08-13 02:42:48,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 842 transitions, 59282 flow [2021-08-13 02:42:48,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:48,423 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:48,423 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:48,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:48,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:48,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:48,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:48,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:48,424 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:48,424 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 253 predicate places. [2021-08-13 02:42:48,424 INFO L482 AbstractCegarLoop]: Abstraction has has 297 places, 842 transitions, 59282 flow [2021-08-13 02:42:48,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:48,424 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:48,424 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:48,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-13 02:42:48,424 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:48,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:48,425 INFO L82 PathProgramCache]: Analyzing trace with hash -424435181, now seen corresponding path program 36 times [2021-08-13 02:42:48,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:48,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956099045] [2021-08-13 02:42:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:48,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:48,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:48,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:48,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:48,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:48,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:48,446 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:48,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:48,455 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:48,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:48,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:48,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:48,483 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:48,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:48,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:48,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:48,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956099045] [2021-08-13 02:42:48,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956099045] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:48,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:48,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:48,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230222566] [2021-08-13 02:42:48,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:48,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:48,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:48,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:48,501 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:48,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 842 transitions, 59282 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:48,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:48,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:48,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:49,150 INFO L129 PetriNetUnfolder]: 220/2349 cut-off events. [2021-08-13 02:42:49,150 INFO L130 PetriNetUnfolder]: For 194785/232646 co-relation queries the response was YES. [2021-08-13 02:42:49,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33605 conditions, 2349 events. 220/2349 cut-off events. For 194785/232646 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 31205 event pairs, 0 based on Foata normal form. 139/2407 useless extension candidates. Maximal degree in co-relation 27788. Up to 516 conditions per place. [2021-08-13 02:42:49,175 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 562 selfloop transitions, 184 changer transitions 75/841 dead transitions. [2021-08-13 02:42:49,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 841 transitions, 60852 flow [2021-08-13 02:42:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:49,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:49,176 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:49,176 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:49,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:49,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:49,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:49,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:49,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:49,178 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:49,178 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 260 predicate places. [2021-08-13 02:42:49,178 INFO L482 AbstractCegarLoop]: Abstraction has has 304 places, 841 transitions, 60852 flow [2021-08-13 02:42:49,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:49,178 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:49,178 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:49,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-13 02:42:49,178 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:49,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:49,178 INFO L82 PathProgramCache]: Analyzing trace with hash 2102673325, now seen corresponding path program 37 times [2021-08-13 02:42:49,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:49,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411584368] [2021-08-13 02:42:49,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:49,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:49,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:49,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:49,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:49,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:49,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:49,202 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:49,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:49,219 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:49,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:49,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:49,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:49,250 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:49,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:49,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:49,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411584368] [2021-08-13 02:42:49,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411584368] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:49,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:49,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:49,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664390117] [2021-08-13 02:42:49,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:49,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:49,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:49,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:49,269 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:49,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 841 transitions, 60852 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:49,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:49,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:49,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:50,056 INFO L129 PetriNetUnfolder]: 219/2355 cut-off events. [2021-08-13 02:42:50,057 INFO L130 PetriNetUnfolder]: For 225215/270009 co-relation queries the response was YES. [2021-08-13 02:42:50,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34413 conditions, 2355 events. 219/2355 cut-off events. For 225215/270009 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31227 event pairs, 0 based on Foata normal form. 130/2405 useless extension candidates. Maximal degree in co-relation 28492. Up to 515 conditions per place. [2021-08-13 02:42:50,083 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 545 selfloop transitions, 194 changer transitions 81/840 dead transitions. [2021-08-13 02:42:50,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 840 transitions, 62418 flow [2021-08-13 02:42:50,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:50,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:50,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:50,084 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:50,084 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:50,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,085 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,085 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 267 predicate places. [2021-08-13 02:42:50,085 INFO L482 AbstractCegarLoop]: Abstraction has has 311 places, 840 transitions, 62418 flow [2021-08-13 02:42:50,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,085 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:50,086 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:50,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-13 02:42:50,086 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:50,086 INFO L82 PathProgramCache]: Analyzing trace with hash -190290661, now seen corresponding path program 38 times [2021-08-13 02:42:50,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:50,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891439938] [2021-08-13 02:42:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:50,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:50,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:50,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:50,105 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:50,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:50,115 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:42:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:42:50,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:50,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:50,151 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:50,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:50,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:50,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891439938] [2021-08-13 02:42:50,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891439938] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:50,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:50,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:50,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803549323] [2021-08-13 02:42:50,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:50,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:50,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:50,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:50,169 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:50,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 840 transitions, 62418 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:50,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:50,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:50,790 INFO L129 PetriNetUnfolder]: 219/2345 cut-off events. [2021-08-13 02:42:50,791 INFO L130 PetriNetUnfolder]: For 217173/257138 co-relation queries the response was YES. [2021-08-13 02:42:50,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35167 conditions, 2345 events. 219/2345 cut-off events. For 217173/257138 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31082 event pairs, 0 based on Foata normal form. 139/2404 useless extension candidates. Maximal degree in co-relation 29144. Up to 514 conditions per place. [2021-08-13 02:42:50,817 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 555 selfloop transitions, 183 changer transitions 81/839 dead transitions. [2021-08-13 02:42:50,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 839 transitions, 63980 flow [2021-08-13 02:42:50,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:50,818 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:50,818 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:50,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:50,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,819 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,820 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 274 predicate places. [2021-08-13 02:42:50,820 INFO L482 AbstractCegarLoop]: Abstraction has has 318 places, 839 transitions, 63980 flow [2021-08-13 02:42:50,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,820 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:50,820 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:50,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-13 02:42:50,820 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:50,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:50,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1516740207, now seen corresponding path program 39 times [2021-08-13 02:42:50,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:50,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23733032] [2021-08-13 02:42:50,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:50,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:50,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:50,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:50,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:50,841 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:50,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:50,850 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:50,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:50,863 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:50,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:50,879 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:50,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:50,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:50,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23733032] [2021-08-13 02:42:50,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23733032] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:50,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:50,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:50,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623919738] [2021-08-13 02:42:50,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:50,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:50,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:50,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:50,896 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:50,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 839 transitions, 63980 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:50,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:50,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:50,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:51,593 INFO L129 PetriNetUnfolder]: 219/2347 cut-off events. [2021-08-13 02:42:51,593 INFO L130 PetriNetUnfolder]: For 228860/269715 co-relation queries the response was YES. [2021-08-13 02:42:51,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35955 conditions, 2347 events. 219/2347 cut-off events. For 228860/269715 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31128 event pairs, 0 based on Foata normal form. 139/2406 useless extension candidates. Maximal degree in co-relation 29832. Up to 513 conditions per place. [2021-08-13 02:42:51,620 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 556 selfloop transitions, 181 changer transitions 81/838 dead transitions. [2021-08-13 02:42:51,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 838 transitions, 65538 flow [2021-08-13 02:42:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:51,622 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:51,622 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:51,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:51,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:51,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:51,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:51,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:51,623 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:51,623 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 281 predicate places. [2021-08-13 02:42:51,623 INFO L482 AbstractCegarLoop]: Abstraction has has 325 places, 838 transitions, 65538 flow [2021-08-13 02:42:51,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:51,623 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:51,623 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:51,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-13 02:42:51,623 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:51,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:51,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1406620425, now seen corresponding path program 40 times [2021-08-13 02:42:51,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:51,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341960698] [2021-08-13 02:42:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:51,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:51,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:51,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:51,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:51,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:51,650 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:51,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:51,669 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:51,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:51,683 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:51,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:51,701 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:51,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:51,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:51,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341960698] [2021-08-13 02:42:51,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341960698] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:51,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:51,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:51,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673718209] [2021-08-13 02:42:51,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:51,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:51,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:51,719 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:51,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 838 transitions, 65538 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:51,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:51,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:51,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:52,451 INFO L129 PetriNetUnfolder]: 220/2348 cut-off events. [2021-08-13 02:42:52,452 INFO L130 PetriNetUnfolder]: For 264537/313597 co-relation queries the response was YES. [2021-08-13 02:42:52,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36738 conditions, 2348 events. 220/2348 cut-off events. For 264537/313597 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 31114 event pairs, 0 based on Foata normal form. 160/2429 useless extension candidates. Maximal degree in co-relation 30517. Up to 512 conditions per place. [2021-08-13 02:42:52,478 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 556 selfloop transitions, 180 changer transitions 81/837 dead transitions. [2021-08-13 02:42:52,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 837 transitions, 67092 flow [2021-08-13 02:42:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:52,479 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:52,479 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:52,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:52,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:52,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:52,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:52,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:52,480 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:52,480 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 288 predicate places. [2021-08-13 02:42:52,480 INFO L482 AbstractCegarLoop]: Abstraction has has 332 places, 837 transitions, 67092 flow [2021-08-13 02:42:52,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:52,480 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:52,480 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:52,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-13 02:42:52,480 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:52,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:52,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1946340419, now seen corresponding path program 41 times [2021-08-13 02:42:52,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:52,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346076153] [2021-08-13 02:42:52,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:52,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:52,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:52,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:52,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:52,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:52,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:52,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:42:52,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:42:52,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:52,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:52,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:52,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:52,607 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:52,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:52,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:52,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346076153] [2021-08-13 02:42:52,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346076153] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:52,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:52,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:52,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378358730] [2021-08-13 02:42:52,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:52,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:52,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:52,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:52,624 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:52,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 837 transitions, 67092 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:52,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:52,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:52,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:53,297 INFO L129 PetriNetUnfolder]: 219/2351 cut-off events. [2021-08-13 02:42:53,297 INFO L130 PetriNetUnfolder]: For 252316/295347 co-relation queries the response was YES. [2021-08-13 02:42:53,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37527 conditions, 2351 events. 219/2351 cut-off events. For 252316/295347 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 31184 event pairs, 0 based on Foata normal form. 137/2408 useless extension candidates. Maximal degree in co-relation 31210. Up to 511 conditions per place. [2021-08-13 02:42:53,324 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 548 selfloop transitions, 171 changer transitions 97/836 dead transitions. [2021-08-13 02:42:53,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 836 transitions, 68642 flow [2021-08-13 02:42:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:53,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:53,325 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:53,325 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:53,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:53,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:53,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:53,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:53,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:53,326 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:53,326 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 295 predicate places. [2021-08-13 02:42:53,326 INFO L482 AbstractCegarLoop]: Abstraction has has 339 places, 836 transitions, 68642 flow [2021-08-13 02:42:53,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:53,326 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:53,326 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:53,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-13 02:42:53,326 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:53,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1035894327, now seen corresponding path program 42 times [2021-08-13 02:42:53,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:53,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660801210] [2021-08-13 02:42:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:53,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:53,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:53,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:53,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:53,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:53,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:53,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:53,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:53,358 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:53,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:53,373 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:53,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:53,389 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:53,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:53,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660801210] [2021-08-13 02:42:53,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660801210] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:53,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:53,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:53,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851592054] [2021-08-13 02:42:53,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:53,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:53,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:53,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:53,410 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:53,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 836 transitions, 68642 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:53,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:53,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:53,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:54,264 INFO L129 PetriNetUnfolder]: 220/2576 cut-off events. [2021-08-13 02:42:54,264 INFO L130 PetriNetUnfolder]: For 283197/327322 co-relation queries the response was YES. [2021-08-13 02:42:54,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41124 conditions, 2576 events. 220/2576 cut-off events. For 283197/327322 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 35132 event pairs, 0 based on Foata normal form. 109/2599 useless extension candidates. Maximal degree in co-relation 33747. Up to 546 conditions per place. [2021-08-13 02:42:54,293 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 584 selfloop transitions, 189 changer transitions 99/892 dead transitions. [2021-08-13 02:42:54,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 892 transitions, 75090 flow [2021-08-13 02:42:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:54,294 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:54,294 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:54,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:54,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:54,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:54,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:54,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:54,295 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:54,295 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 302 predicate places. [2021-08-13 02:42:54,295 INFO L482 AbstractCegarLoop]: Abstraction has has 346 places, 892 transitions, 75090 flow [2021-08-13 02:42:54,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:54,295 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:54,295 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:54,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-13 02:42:54,295 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:54,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:54,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1329069149, now seen corresponding path program 43 times [2021-08-13 02:42:54,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:54,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293810091] [2021-08-13 02:42:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:54,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:54,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:54,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:54,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:54,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:54,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:54,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:54,326 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:54,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:54,344 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:54,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:54,364 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:54,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:54,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:54,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:54,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293810091] [2021-08-13 02:42:54,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293810091] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:54,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:54,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:54,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634443572] [2021-08-13 02:42:54,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:54,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:54,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:54,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:54,385 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:54,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 892 transitions, 75090 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:54,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:54,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:54,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:55,366 INFO L129 PetriNetUnfolder]: 221/2574 cut-off events. [2021-08-13 02:42:55,366 INFO L130 PetriNetUnfolder]: For 326279/379821 co-relation queries the response was YES. [2021-08-13 02:42:55,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41949 conditions, 2574 events. 221/2574 cut-off events. For 326279/379821 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 35099 event pairs, 0 based on Foata normal form. 130/2614 useless extension candidates. Maximal degree in co-relation 34459. Up to 545 conditions per place. [2021-08-13 02:42:55,404 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 581 selfloop transitions, 191 changer transitions 99/891 dead transitions. [2021-08-13 02:42:55,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 891 transitions, 76746 flow [2021-08-13 02:42:55,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:55,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:55,405 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:55,405 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:55,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:55,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:55,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:55,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:55,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:55,406 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:55,406 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 309 predicate places. [2021-08-13 02:42:55,406 INFO L482 AbstractCegarLoop]: Abstraction has has 353 places, 891 transitions, 76746 flow [2021-08-13 02:42:55,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:55,407 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:55,407 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:55,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-13 02:42:55,407 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:55,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:55,407 INFO L82 PathProgramCache]: Analyzing trace with hash 206153001, now seen corresponding path program 44 times [2021-08-13 02:42:55,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:55,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495432635] [2021-08-13 02:42:55,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:55,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:55,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:55,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:55,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:55,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:55,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:55,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:55,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:55,437 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:42:55,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:42:55,450 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:55,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:55,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:55,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:55,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495432635] [2021-08-13 02:42:55,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495432635] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:55,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:55,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:55,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701608350] [2021-08-13 02:42:55,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:55,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:55,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:55,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:55,488 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:55,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 891 transitions, 76746 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:55,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:55,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:55,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:56,409 INFO L129 PetriNetUnfolder]: 220/2572 cut-off events. [2021-08-13 02:42:56,409 INFO L130 PetriNetUnfolder]: For 311842/358455 co-relation queries the response was YES. [2021-08-13 02:42:56,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42774 conditions, 2572 events. 220/2572 cut-off events. For 311842/358455 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 35063 event pairs, 0 based on Foata normal form. 111/2598 useless extension candidates. Maximal degree in co-relation 35173. Up to 544 conditions per place. [2021-08-13 02:42:56,444 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 581 selfloop transitions, 187 changer transitions 102/890 dead transitions. [2021-08-13 02:42:56,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 890 transitions, 78398 flow [2021-08-13 02:42:56,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:56,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:56,445 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:56,445 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:56,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:56,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:56,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:56,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:56,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:56,447 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:56,447 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 316 predicate places. [2021-08-13 02:42:56,447 INFO L482 AbstractCegarLoop]: Abstraction has has 360 places, 890 transitions, 78398 flow [2021-08-13 02:42:56,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:56,447 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:56,447 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:56,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-13 02:42:56,447 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:56,447 INFO L82 PathProgramCache]: Analyzing trace with hash -397625373, now seen corresponding path program 45 times [2021-08-13 02:42:56,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:56,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757767262] [2021-08-13 02:42:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:56,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:56,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:56,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:56,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:56,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:56,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:56,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:56,485 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:56,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:56,510 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:56,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:56,529 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:56,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:56,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:56,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757767262] [2021-08-13 02:42:56,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757767262] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:56,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:56,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:56,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599015143] [2021-08-13 02:42:56,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:56,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:56,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:56,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:56,548 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:56,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 890 transitions, 78398 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:56,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:56,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:56,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:57,450 INFO L129 PetriNetUnfolder]: 220/2559 cut-off events. [2021-08-13 02:42:57,450 INFO L130 PetriNetUnfolder]: For 326169/373936 co-relation queries the response was YES. [2021-08-13 02:42:57,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43564 conditions, 2559 events. 220/2559 cut-off events. For 326169/373936 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 34780 event pairs, 0 based on Foata normal form. 111/2586 useless extension candidates. Maximal degree in co-relation 35854. Up to 543 conditions per place. [2021-08-13 02:42:57,481 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 575 selfloop transitions, 190 changer transitions 104/889 dead transitions. [2021-08-13 02:42:57,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 889 transitions, 80046 flow [2021-08-13 02:42:57,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:57,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:57,482 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:57,482 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:57,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:57,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:57,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:57,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:57,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:57,483 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:57,483 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 323 predicate places. [2021-08-13 02:42:57,483 INFO L482 AbstractCegarLoop]: Abstraction has has 367 places, 889 transitions, 80046 flow [2021-08-13 02:42:57,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:57,483 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:57,483 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:57,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-13 02:42:57,483 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:57,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1218972797, now seen corresponding path program 46 times [2021-08-13 02:42:57,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:57,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951768801] [2021-08-13 02:42:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:57,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:57,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:57,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:57,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:57,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:57,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:57,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:57,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:42:57,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:42:57,532 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:57,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:57,549 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:57,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:57,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:57,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951768801] [2021-08-13 02:42:57,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951768801] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:57,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:57,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:57,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137644628] [2021-08-13 02:42:57,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:57,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:57,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:57,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:57,567 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:57,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 889 transitions, 80046 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:57,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:57,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:57,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:58,430 INFO L129 PetriNetUnfolder]: 220/2565 cut-off events. [2021-08-13 02:42:58,430 INFO L130 PetriNetUnfolder]: For 374691/432655 co-relation queries the response was YES. [2021-08-13 02:42:58,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44409 conditions, 2565 events. 220/2565 cut-off events. For 374691/432655 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 34949 event pairs, 0 based on Foata normal form. 130/2609 useless extension candidates. Maximal degree in co-relation 36592. Up to 542 conditions per place. [2021-08-13 02:42:58,462 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 573 selfloop transitions, 188 changer transitions 107/888 dead transitions. [2021-08-13 02:42:58,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 888 transitions, 81690 flow [2021-08-13 02:42:58,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:58,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:58,463 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:58,463 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:58,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:58,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:58,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:58,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:58,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:58,464 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:58,465 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 330 predicate places. [2021-08-13 02:42:58,465 INFO L482 AbstractCegarLoop]: Abstraction has has 374 places, 888 transitions, 81690 flow [2021-08-13 02:42:58,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:58,465 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:58,465 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:58,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-08-13 02:42:58,465 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:58,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:58,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1134436223, now seen corresponding path program 47 times [2021-08-13 02:42:58,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:58,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205013287] [2021-08-13 02:42:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:58,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:58,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:58,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:58,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:58,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:58,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:58,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:58,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:42:58,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:42:58,580 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:42:58,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:42:58,600 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:58,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:58,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:58,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205013287] [2021-08-13 02:42:58,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205013287] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:58,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:58,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:58,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856886241] [2021-08-13 02:42:58,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:58,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:58,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:58,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:58,621 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:58,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 888 transitions, 81690 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:58,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:58,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:58,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:42:59,415 INFO L129 PetriNetUnfolder]: 221/2573 cut-off events. [2021-08-13 02:42:59,416 INFO L130 PetriNetUnfolder]: For 354766/404829 co-relation queries the response was YES. [2021-08-13 02:42:59,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45254 conditions, 2573 events. 221/2573 cut-off events. For 354766/404829 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 35064 event pairs, 0 based on Foata normal form. 109/2594 useless extension candidates. Maximal degree in co-relation 37332. Up to 541 conditions per place. [2021-08-13 02:42:59,527 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 571 selfloop transitions, 183 changer transitions 113/887 dead transitions. [2021-08-13 02:42:59,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 887 transitions, 83330 flow [2021-08-13 02:42:59,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:42:59,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:42:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:42:59,531 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:42:59,531 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:42:59,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:42:59,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:42:59,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:42:59,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:59,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:59,533 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:59,533 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 337 predicate places. [2021-08-13 02:42:59,533 INFO L482 AbstractCegarLoop]: Abstraction has has 381 places, 887 transitions, 83330 flow [2021-08-13 02:42:59,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:59,533 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:42:59,533 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:42:59,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-08-13 02:42:59,533 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:42:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:42:59,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1035835787, now seen corresponding path program 48 times [2021-08-13 02:42:59,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:42:59,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606310916] [2021-08-13 02:42:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:42:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:42:59,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:59,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:42:59,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:59,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:42:59,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:59,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:42:59,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:42:59,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:42:59,560 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:42:59,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:42:59,582 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:42:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:42:59,609 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:42:59,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:42:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:42:59,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:42:59,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606310916] [2021-08-13 02:42:59,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606310916] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:42:59,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:42:59,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:42:59,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251708788] [2021-08-13 02:42:59,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:42:59,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:42:59,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:42:59,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:42:59,627 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:42:59,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 887 transitions, 83330 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:42:59,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:42:59,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:42:59,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:00,599 INFO L129 PetriNetUnfolder]: 219/2798 cut-off events. [2021-08-13 02:43:00,599 INFO L130 PetriNetUnfolder]: For 429936/490235 co-relation queries the response was YES. [2021-08-13 02:43:00,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49414 conditions, 2798 events. 219/2798 cut-off events. For 429936/490235 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 39030 event pairs, 0 based on Foata normal form. 128/2833 useless extension candidates. Maximal degree in co-relation 40141. Up to 598 conditions per place. [2021-08-13 02:43:00,632 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 613 selfloop transitions, 199 changer transitions 115/947 dead transitions. [2021-08-13 02:43:00,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 947 transitions, 90944 flow [2021-08-13 02:43:00,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:00,633 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:00,633 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:00,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:00,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:00,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:00,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:00,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:00,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:00,635 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 344 predicate places. [2021-08-13 02:43:00,635 INFO L482 AbstractCegarLoop]: Abstraction has has 388 places, 947 transitions, 90944 flow [2021-08-13 02:43:00,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:00,635 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:00,635 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:00,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-08-13 02:43:00,635 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:00,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:00,635 INFO L82 PathProgramCache]: Analyzing trace with hash 979094025, now seen corresponding path program 49 times [2021-08-13 02:43:00,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:00,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085279205] [2021-08-13 02:43:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:00,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:00,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:00,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:00,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:00,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:00,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:00,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:00,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:00,668 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:43:00,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:43:00,690 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:00,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:00,720 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:00,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:00,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085279205] [2021-08-13 02:43:00,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085279205] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:00,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:00,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:00,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460176229] [2021-08-13 02:43:00,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:00,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:00,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:00,738 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:00,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 947 transitions, 90944 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:00,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:00,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:00,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:01,842 INFO L129 PetriNetUnfolder]: 218/2794 cut-off events. [2021-08-13 02:43:01,842 INFO L130 PetriNetUnfolder]: For 571775/680439 co-relation queries the response was YES. [2021-08-13 02:43:01,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50286 conditions, 2794 events. 218/2794 cut-off events. For 571775/680439 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 38902 event pairs, 0 based on Foata normal form. 194/2895 useless extension candidates. Maximal degree in co-relation 40888. Up to 597 conditions per place. [2021-08-13 02:43:01,876 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 610 selfloop transitions, 198 changer transitions 118/946 dead transitions. [2021-08-13 02:43:01,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 946 transitions, 92698 flow [2021-08-13 02:43:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:01,877 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:01,877 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:01,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:01,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:01,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:01,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:01,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:01,878 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:01,878 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 351 predicate places. [2021-08-13 02:43:01,878 INFO L482 AbstractCegarLoop]: Abstraction has has 395 places, 946 transitions, 92698 flow [2021-08-13 02:43:01,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:01,879 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:01,879 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:01,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-08-13 02:43:01,879 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:01,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1351968765, now seen corresponding path program 50 times [2021-08-13 02:43:01,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:01,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326235293] [2021-08-13 02:43:01,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:01,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:01,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:01,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:01,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:01,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:01,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:01,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:01,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:01,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:43:01,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:43:01,925 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:01,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:01,941 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:01,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:01,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:01,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326235293] [2021-08-13 02:43:01,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326235293] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:01,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:01,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:01,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423932844] [2021-08-13 02:43:01,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:01,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:01,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:01,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:01,958 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:01,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 946 transitions, 92698 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:01,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:01,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:01,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:03,118 INFO L129 PetriNetUnfolder]: 219/2798 cut-off events. [2021-08-13 02:43:03,118 INFO L130 PetriNetUnfolder]: For 474015/537875 co-relation queries the response was YES. [2021-08-13 02:43:03,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51174 conditions, 2798 events. 219/2798 cut-off events. For 474015/537875 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 39033 event pairs, 0 based on Foata normal form. 130/2833 useless extension candidates. Maximal degree in co-relation 41653. Up to 596 conditions per place. [2021-08-13 02:43:03,152 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 609 selfloop transitions, 198 changer transitions 118/945 dead transitions. [2021-08-13 02:43:03,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 945 transitions, 94448 flow [2021-08-13 02:43:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:03,153 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:03,153 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:03,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:03,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:03,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:03,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:03,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:03,154 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:03,154 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 358 predicate places. [2021-08-13 02:43:03,154 INFO L482 AbstractCegarLoop]: Abstraction has has 402 places, 945 transitions, 94448 flow [2021-08-13 02:43:03,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:03,155 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:03,155 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:03,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-08-13 02:43:03,155 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:03,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:03,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1832296861, now seen corresponding path program 51 times [2021-08-13 02:43:03,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:03,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257569038] [2021-08-13 02:43:03,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:03,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:03,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:03,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:03,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:03,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:03,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:03,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:03,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:03,182 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:43:03,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:43:03,295 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-08-13 02:43:03,305 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:03,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:03,324 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:03,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:03,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:03,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257569038] [2021-08-13 02:43:03,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257569038] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:03,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:03,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:03,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729780907] [2021-08-13 02:43:03,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:03,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:03,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:03,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:03,342 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:03,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 945 transitions, 94448 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:03,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:03,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:03,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:04,338 INFO L129 PetriNetUnfolder]: 218/2794 cut-off events. [2021-08-13 02:43:04,338 INFO L130 PetriNetUnfolder]: For 455446/510771 co-relation queries the response was YES. [2021-08-13 02:43:04,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52040 conditions, 2794 events. 218/2794 cut-off events. For 455446/510771 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 38938 event pairs, 0 based on Foata normal form. 111/2813 useless extension candidates. Maximal degree in co-relation 42398. Up to 595 conditions per place. [2021-08-13 02:43:04,373 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 609 selfloop transitions, 192 changer transitions 123/944 dead transitions. [2021-08-13 02:43:04,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 944 transitions, 96194 flow [2021-08-13 02:43:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:04,374 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:04,374 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:04,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:04,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:04,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:04,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:04,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:04,375 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:04,375 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 365 predicate places. [2021-08-13 02:43:04,375 INFO L482 AbstractCegarLoop]: Abstraction has has 409 places, 944 transitions, 96194 flow [2021-08-13 02:43:04,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:04,375 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:04,375 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:04,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-08-13 02:43:04,375 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:04,375 INFO L82 PathProgramCache]: Analyzing trace with hash 2006396723, now seen corresponding path program 52 times [2021-08-13 02:43:04,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:04,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749078360] [2021-08-13 02:43:04,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:04,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:04,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:04,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:04,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:04,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:04,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:04,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:04,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:04,508 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-08-13 02:43:04,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:04,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:04,522 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:04,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:04,539 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:04,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:04,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:04,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749078360] [2021-08-13 02:43:04,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749078360] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:04,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:04,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:04,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384305482] [2021-08-13 02:43:04,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:04,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:04,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:04,558 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:04,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 944 transitions, 96194 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:04,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:04,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:04,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:05,519 INFO L129 PetriNetUnfolder]: 218/2791 cut-off events. [2021-08-13 02:43:05,519 INFO L130 PetriNetUnfolder]: For 704533/837186 co-relation queries the response was YES. [2021-08-13 02:43:05,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52908 conditions, 2791 events. 218/2791 cut-off events. For 704533/837186 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 38925 event pairs, 0 based on Foata normal form. 219/2917 useless extension candidates. Maximal degree in co-relation 43147. Up to 594 conditions per place. [2021-08-13 02:43:05,554 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 608 selfloop transitions, 190 changer transitions 125/943 dead transitions. [2021-08-13 02:43:05,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 943 transitions, 97936 flow [2021-08-13 02:43:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:05,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:05,555 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:05,555 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:05,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:05,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:05,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:05,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:05,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:05,556 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:05,557 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 372 predicate places. [2021-08-13 02:43:05,557 INFO L482 AbstractCegarLoop]: Abstraction has has 416 places, 943 transitions, 97936 flow [2021-08-13 02:43:05,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:05,557 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:05,557 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:05,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-08-13 02:43:05,557 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:05,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:05,557 INFO L82 PathProgramCache]: Analyzing trace with hash 185333151, now seen corresponding path program 53 times [2021-08-13 02:43:05,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:05,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885673130] [2021-08-13 02:43:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:05,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:05,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:05,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:05,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:05,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:05,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:05,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:05,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:05,602 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:05,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:05,614 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:05,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:05,632 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:05,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:05,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:05,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885673130] [2021-08-13 02:43:05,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885673130] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:05,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:05,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:05,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076806575] [2021-08-13 02:43:05,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:05,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:05,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:05,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:05,649 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:05,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 943 transitions, 97936 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:05,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:05,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:05,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:06,874 INFO L129 PetriNetUnfolder]: 219/2795 cut-off events. [2021-08-13 02:43:06,874 INFO L130 PetriNetUnfolder]: For 671681/790053 co-relation queries the response was YES. [2021-08-13 02:43:06,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53790 conditions, 2795 events. 219/2795 cut-off events. For 671681/790053 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 38983 event pairs, 0 based on Foata normal form. 192/2892 useless extension candidates. Maximal degree in co-relation 43912. Up to 593 conditions per place. [2021-08-13 02:43:06,920 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 606 selfloop transitions, 186 changer transitions 130/942 dead transitions. [2021-08-13 02:43:06,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 942 transitions, 99674 flow [2021-08-13 02:43:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:06,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:06,924 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:06,925 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:06,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:06,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:06,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:06,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:06,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:06,926 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:06,926 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 379 predicate places. [2021-08-13 02:43:06,926 INFO L482 AbstractCegarLoop]: Abstraction has has 423 places, 942 transitions, 99674 flow [2021-08-13 02:43:06,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:06,926 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:06,926 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:06,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-08-13 02:43:06,926 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:06,927 INFO L82 PathProgramCache]: Analyzing trace with hash 28103605, now seen corresponding path program 54 times [2021-08-13 02:43:06,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:06,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918622044] [2021-08-13 02:43:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:06,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:06,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:06,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:06,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:06,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:06,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:06,950 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:06,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:06,996 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:06,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:07,018 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:07,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:07,042 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:07,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:07,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:07,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918622044] [2021-08-13 02:43:07,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918622044] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:07,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:07,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:07,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902360533] [2021-08-13 02:43:07,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:07,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:07,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:07,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:07,063 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:07,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 942 transitions, 99674 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:07,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:07,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:07,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:08,723 INFO L129 PetriNetUnfolder]: 245/3676 cut-off events. [2021-08-13 02:43:08,723 INFO L130 PetriNetUnfolder]: For 895032/1047808 co-relation queries the response was YES. [2021-08-13 02:43:08,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69876 conditions, 3676 events. 245/3676 cut-off events. For 895032/1047808 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 54608 event pairs, 0 based on Foata normal form. 199/3757 useless extension candidates. Maximal degree in co-relation 55475. Up to 755 conditions per place. [2021-08-13 02:43:08,769 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 794 selfloop transitions, 249 changer transitions 130/1193 dead transitions. [2021-08-13 02:43:08,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1193 transitions, 129128 flow [2021-08-13 02:43:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:08,773 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:08,773 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:08,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:08,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:08,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:08,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:08,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:08,774 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:08,774 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 386 predicate places. [2021-08-13 02:43:08,774 INFO L482 AbstractCegarLoop]: Abstraction has has 430 places, 1193 transitions, 129128 flow [2021-08-13 02:43:08,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:08,774 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:08,774 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:08,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-08-13 02:43:08,775 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash 358661199, now seen corresponding path program 55 times [2021-08-13 02:43:08,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:08,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889264623] [2021-08-13 02:43:08,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:08,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:08,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:08,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:08,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:08,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:08,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:08,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:08,921 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2021-08-13 02:43:08,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:08,931 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:43:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:43:08,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:08,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:08,964 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:08,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:08,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:08,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889264623] [2021-08-13 02:43:08,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889264623] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:08,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:08,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:08,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164368774] [2021-08-13 02:43:08,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:08,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:08,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:08,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:08,982 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:08,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 1193 transitions, 129128 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:08,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:08,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:08,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:10,861 INFO L129 PetriNetUnfolder]: 245/3673 cut-off events. [2021-08-13 02:43:10,861 INFO L130 PetriNetUnfolder]: For 695051/774602 co-relation queries the response was YES. [2021-08-13 02:43:10,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70988 conditions, 3673 events. 245/3673 cut-off events. For 695051/774602 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 54543 event pairs, 0 based on Foata normal form. 140/3697 useless extension candidates. Maximal degree in co-relation 56398. Up to 754 conditions per place. [2021-08-13 02:43:10,908 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 788 selfloop transitions, 254 changer transitions 130/1192 dead transitions. [2021-08-13 02:43:10,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1192 transitions, 131362 flow [2021-08-13 02:43:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:10,909 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:10,909 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:10,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:10,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:10,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:10,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:10,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:10,910 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:10,910 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 393 predicate places. [2021-08-13 02:43:10,910 INFO L482 AbstractCegarLoop]: Abstraction has has 437 places, 1192 transitions, 131362 flow [2021-08-13 02:43:10,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:10,911 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:10,911 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:10,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-08-13 02:43:10,911 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:10,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:10,911 INFO L82 PathProgramCache]: Analyzing trace with hash -289771861, now seen corresponding path program 56 times [2021-08-13 02:43:10,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:10,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591996815] [2021-08-13 02:43:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:10,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:10,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:10,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:10,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:10,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:10,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:10,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:10,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:10,940 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:43:10,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:43:10,954 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:10,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:10,972 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:10,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:10,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:10,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591996815] [2021-08-13 02:43:10,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591996815] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:10,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:10,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:10,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277896702] [2021-08-13 02:43:10,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:10,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:10,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:10,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:10,991 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:10,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1192 transitions, 131362 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:10,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:10,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:10,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:12,996 INFO L129 PetriNetUnfolder]: 245/3676 cut-off events. [2021-08-13 02:43:12,996 INFO L130 PetriNetUnfolder]: For 664762/733060 co-relation queries the response was YES. [2021-08-13 02:43:13,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72115 conditions, 3676 events. 245/3676 cut-off events. For 664762/733060 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 54595 event pairs, 0 based on Foata normal form. 113/3671 useless extension candidates. Maximal degree in co-relation 57338. Up to 753 conditions per place. [2021-08-13 02:43:13,054 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 786 selfloop transitions, 255 changer transitions 130/1191 dead transitions. [2021-08-13 02:43:13,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 1191 transitions, 133592 flow [2021-08-13 02:43:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:13,055 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:13,055 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:13,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:13,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:13,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:13,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:13,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:13,056 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:13,056 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 400 predicate places. [2021-08-13 02:43:13,056 INFO L482 AbstractCegarLoop]: Abstraction has has 444 places, 1191 transitions, 133592 flow [2021-08-13 02:43:13,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:13,056 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:13,056 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:13,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-08-13 02:43:13,056 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:13,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:13,057 INFO L82 PathProgramCache]: Analyzing trace with hash 575310327, now seen corresponding path program 57 times [2021-08-13 02:43:13,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:13,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655700252] [2021-08-13 02:43:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:13,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:13,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:13,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:13,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:13,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:13,080 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:13,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:13,090 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:13,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:13,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:13,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:13,137 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:13,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:13,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655700252] [2021-08-13 02:43:13,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655700252] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:13,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:13,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:13,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540297410] [2021-08-13 02:43:13,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:13,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:13,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:13,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:13,156 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:13,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1191 transitions, 133592 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:13,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:13,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:13,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:15,355 INFO L129 PetriNetUnfolder]: 245/3671 cut-off events. [2021-08-13 02:43:15,355 INFO L130 PetriNetUnfolder]: For 814073/920486 co-relation queries the response was YES. [2021-08-13 02:43:15,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73218 conditions, 3671 events. 245/3671 cut-off events. For 814073/920486 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 54456 event pairs, 0 based on Foata normal form. 184/3739 useless extension candidates. Maximal degree in co-relation 58256. Up to 752 conditions per place. [2021-08-13 02:43:15,405 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 787 selfloop transitions, 253 changer transitions 130/1190 dead transitions. [2021-08-13 02:43:15,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1190 transitions, 135818 flow [2021-08-13 02:43:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:15,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:15,406 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:15,406 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:15,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:15,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:15,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:15,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:15,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:15,408 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:15,408 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 407 predicate places. [2021-08-13 02:43:15,408 INFO L482 AbstractCegarLoop]: Abstraction has has 451 places, 1190 transitions, 135818 flow [2021-08-13 02:43:15,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:15,408 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:15,408 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:15,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-08-13 02:43:15,408 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:15,408 INFO L82 PathProgramCache]: Analyzing trace with hash 171400321, now seen corresponding path program 58 times [2021-08-13 02:43:15,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:15,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435987253] [2021-08-13 02:43:15,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:15,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:15,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:15,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:15,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:15,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:15,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:15,426 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:15,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:15,439 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:43:15,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:43:15,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:15,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:15,467 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:15,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:15,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:15,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435987253] [2021-08-13 02:43:15,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435987253] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:15,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:15,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:15,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278583558] [2021-08-13 02:43:15,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:15,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:15,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:15,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:15,488 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:15,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1190 transitions, 135818 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:15,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:15,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:15,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:17,534 INFO L129 PetriNetUnfolder]: 244/3716 cut-off events. [2021-08-13 02:43:17,534 INFO L130 PetriNetUnfolder]: For 852484/962887 co-relation queries the response was YES. [2021-08-13 02:43:17,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75055 conditions, 3716 events. 244/3716 cut-off events. For 852484/962887 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55417 event pairs, 0 based on Foata normal form. 184/3784 useless extension candidates. Maximal degree in co-relation 59600. Up to 758 conditions per place. [2021-08-13 02:43:17,583 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 798 selfloop transitions, 250 changer transitions 132/1200 dead transitions. [2021-08-13 02:43:17,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 1200 transitions, 139338 flow [2021-08-13 02:43:17,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:17,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:17,585 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:17,585 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:17,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:17,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:17,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:17,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:17,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:17,586 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:17,586 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 414 predicate places. [2021-08-13 02:43:17,586 INFO L482 AbstractCegarLoop]: Abstraction has has 458 places, 1200 transitions, 139338 flow [2021-08-13 02:43:17,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:17,586 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:17,586 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:17,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-08-13 02:43:17,586 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:17,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2104679181, now seen corresponding path program 59 times [2021-08-13 02:43:17,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:17,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126524526] [2021-08-13 02:43:17,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:17,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:17,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:17,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:17,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:17,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:17,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:17,604 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:17,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:17,618 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:17,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:17,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:17,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:17,660 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:17,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:17,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:17,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126524526] [2021-08-13 02:43:17,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126524526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:17,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:17,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:17,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964696033] [2021-08-13 02:43:17,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:17,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:17,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:17,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:17,680 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:17,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1200 transitions, 139338 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:17,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:17,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:17,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:19,593 INFO L129 PetriNetUnfolder]: 244/3718 cut-off events. [2021-08-13 02:43:19,593 INFO L130 PetriNetUnfolder]: For 994348/1150427 co-relation queries the response was YES. [2021-08-13 02:43:19,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76184 conditions, 3718 events. 244/3718 cut-off events. For 994348/1150427 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55437 event pairs, 0 based on Foata normal form. 214/3816 useless extension candidates. Maximal degree in co-relation 60543. Up to 757 conditions per place. [2021-08-13 02:43:19,642 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 796 selfloop transitions, 246 changer transitions 137/1199 dead transitions. [2021-08-13 02:43:19,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1199 transitions, 141578 flow [2021-08-13 02:43:19,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:19,643 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:19,643 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:19,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:19,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:19,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:19,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:19,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:19,644 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:19,644 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 421 predicate places. [2021-08-13 02:43:19,644 INFO L482 AbstractCegarLoop]: Abstraction has has 465 places, 1199 transitions, 141578 flow [2021-08-13 02:43:19,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:19,644 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:19,644 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:19,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-08-13 02:43:19,645 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:19,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:19,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1475531183, now seen corresponding path program 60 times [2021-08-13 02:43:19,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:19,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756371536] [2021-08-13 02:43:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:19,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:19,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:19,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:19,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:19,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:19,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:19,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:19,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:19,678 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:19,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:19,698 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:19,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:19,715 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:19,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:19,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756371536] [2021-08-13 02:43:19,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756371536] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:19,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:19,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:19,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894624136] [2021-08-13 02:43:19,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:19,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:19,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:19,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:19,732 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:19,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 1199 transitions, 141578 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:19,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:19,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:19,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:21,808 INFO L129 PetriNetUnfolder]: 244/3718 cut-off events. [2021-08-13 02:43:21,809 INFO L130 PetriNetUnfolder]: For 1114649/1303207 co-relation queries the response was YES. [2021-08-13 02:43:22,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77307 conditions, 3718 events. 244/3718 cut-off events. For 1114649/1303207 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55400 event pairs, 0 based on Foata normal form. 235/3834 useless extension candidates. Maximal degree in co-relation 61482. Up to 756 conditions per place. [2021-08-13 02:43:22,029 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 793 selfloop transitions, 246 changer transitions 139/1198 dead transitions. [2021-08-13 02:43:22,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1198 transitions, 143814 flow [2021-08-13 02:43:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:22,030 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:22,030 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:22,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:22,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:22,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:22,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:22,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:22,031 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:22,031 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 428 predicate places. [2021-08-13 02:43:22,031 INFO L482 AbstractCegarLoop]: Abstraction has has 472 places, 1198 transitions, 143814 flow [2021-08-13 02:43:22,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:22,032 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:22,032 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:22,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-08-13 02:43:22,032 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:22,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:22,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1649531573, now seen corresponding path program 61 times [2021-08-13 02:43:22,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:22,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109518000] [2021-08-13 02:43:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:22,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:22,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:22,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:22,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:22,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:22,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:22,050 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:22,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:22,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:22,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:22,072 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:22,089 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:22,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:22,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:22,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109518000] [2021-08-13 02:43:22,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109518000] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:22,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:22,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:22,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743097478] [2021-08-13 02:43:22,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:22,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:22,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:22,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:22,107 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:22,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1198 transitions, 143814 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:22,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:22,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:22,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:24,123 INFO L129 PetriNetUnfolder]: 244/3717 cut-off events. [2021-08-13 02:43:24,123 INFO L130 PetriNetUnfolder]: For 867760/965999 co-relation queries the response was YES. [2021-08-13 02:43:24,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78424 conditions, 3717 events. 244/3717 cut-off events. For 867760/965999 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55415 event pairs, 0 based on Foata normal form. 128/3726 useless extension candidates. Maximal degree in co-relation 62417. Up to 755 conditions per place. [2021-08-13 02:43:24,175 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 783 selfloop transitions, 255 changer transitions 139/1197 dead transitions. [2021-08-13 02:43:24,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1197 transitions, 146046 flow [2021-08-13 02:43:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:24,176 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:24,176 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:24,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:24,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:24,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:24,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:24,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:24,177 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:24,178 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 435 predicate places. [2021-08-13 02:43:24,178 INFO L482 AbstractCegarLoop]: Abstraction has has 479 places, 1197 transitions, 146046 flow [2021-08-13 02:43:24,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:24,178 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:24,178 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:24,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-08-13 02:43:24,178 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash 468627889, now seen corresponding path program 62 times [2021-08-13 02:43:24,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:24,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186200484] [2021-08-13 02:43:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:24,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:24,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:24,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:24,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:24,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:24,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:24,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:24,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:24,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:24,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:24,223 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:24,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:24,240 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:24,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:24,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:24,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186200484] [2021-08-13 02:43:24,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186200484] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:24,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:24,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:24,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210316634] [2021-08-13 02:43:24,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:24,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:24,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:24,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:24,257 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:24,257 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1197 transitions, 146046 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:24,257 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:24,257 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:24,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:26,220 INFO L129 PetriNetUnfolder]: 244/3716 cut-off events. [2021-08-13 02:43:26,220 INFO L130 PetriNetUnfolder]: For 823219/906097 co-relation queries the response was YES. [2021-08-13 02:43:26,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79539 conditions, 3716 events. 244/3716 cut-off events. For 823219/906097 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55354 event pairs, 0 based on Foata normal form. 111/3708 useless extension candidates. Maximal degree in co-relation 63352. Up to 754 conditions per place. [2021-08-13 02:43:26,273 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 782 selfloop transitions, 255 changer transitions 139/1196 dead transitions. [2021-08-13 02:43:26,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1196 transitions, 148274 flow [2021-08-13 02:43:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:26,274 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:26,274 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:26,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:26,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:26,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:26,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:26,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:26,275 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:26,275 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 442 predicate places. [2021-08-13 02:43:26,275 INFO L482 AbstractCegarLoop]: Abstraction has has 486 places, 1196 transitions, 148274 flow [2021-08-13 02:43:26,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:26,275 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:26,275 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:26,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-08-13 02:43:26,275 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:26,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1756983537, now seen corresponding path program 63 times [2021-08-13 02:43:26,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:26,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851529288] [2021-08-13 02:43:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:26,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:26,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:26,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:26,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:26,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:26,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:26,294 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:43:26,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:43:26,305 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:26,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:26,331 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:26,353 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:26,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:26,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:26,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851529288] [2021-08-13 02:43:26,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851529288] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:26,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:26,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:26,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278538129] [2021-08-13 02:43:26,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:26,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:26,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:26,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:26,372 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:26,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 1196 transitions, 148274 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:26,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:26,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:26,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:28,680 INFO L129 PetriNetUnfolder]: 244/3713 cut-off events. [2021-08-13 02:43:28,680 INFO L130 PetriNetUnfolder]: For 927486/1032097 co-relation queries the response was YES. [2021-08-13 02:43:28,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80646 conditions, 3713 events. 244/3713 cut-off events. For 927486/1032097 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55293 event pairs, 0 based on Foata normal form. 128/3724 useless extension candidates. Maximal degree in co-relation 64281. Up to 753 conditions per place. [2021-08-13 02:43:28,735 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 777 selfloop transitions, 243 changer transitions 155/1195 dead transitions. [2021-08-13 02:43:28,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1195 transitions, 150498 flow [2021-08-13 02:43:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:28,736 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:28,737 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:28,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:28,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:28,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:28,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:28,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:28,738 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:28,738 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 449 predicate places. [2021-08-13 02:43:28,738 INFO L482 AbstractCegarLoop]: Abstraction has has 493 places, 1195 transitions, 150498 flow [2021-08-13 02:43:28,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:28,738 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:28,738 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:28,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-08-13 02:43:28,738 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash -937552063, now seen corresponding path program 64 times [2021-08-13 02:43:28,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:28,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125988104] [2021-08-13 02:43:28,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:28,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:28,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:28,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:28,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:28,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:28,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:28,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:28,799 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:28,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:28,831 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:28,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:28,847 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:28,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:28,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125988104] [2021-08-13 02:43:28,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125988104] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:28,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:28,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:28,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216835897] [2021-08-13 02:43:28,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:28,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:28,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:28,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:28,863 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:28,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1195 transitions, 150498 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:28,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:28,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:28,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:31,196 INFO L129 PetriNetUnfolder]: 244/3716 cut-off events. [2021-08-13 02:43:31,197 INFO L130 PetriNetUnfolder]: For 889785/978407 co-relation queries the response was YES. [2021-08-13 02:43:31,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81767 conditions, 3716 events. 244/3716 cut-off events. For 889785/978407 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55405 event pairs, 0 based on Foata normal form. 113/3711 useless extension candidates. Maximal degree in co-relation 65226. Up to 752 conditions per place. [2021-08-13 02:43:31,249 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 775 selfloop transitions, 242 changer transitions 157/1194 dead transitions. [2021-08-13 02:43:31,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1194 transitions, 152718 flow [2021-08-13 02:43:31,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:31,250 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:31,250 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:31,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:31,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:31,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:31,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:31,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:31,251 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:31,251 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 456 predicate places. [2021-08-13 02:43:31,251 INFO L482 AbstractCegarLoop]: Abstraction has has 500 places, 1194 transitions, 152718 flow [2021-08-13 02:43:31,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:31,251 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:31,251 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:31,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-08-13 02:43:31,251 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:31,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:31,251 INFO L82 PathProgramCache]: Analyzing trace with hash 631145331, now seen corresponding path program 65 times [2021-08-13 02:43:31,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:31,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848586473] [2021-08-13 02:43:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:31,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:31,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:31,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:31,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:31,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:31,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:31,272 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:31,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:31,290 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:43:31,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:43:31,397 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:31,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:31,415 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:31,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:31,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:31,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:31,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848586473] [2021-08-13 02:43:31,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848586473] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:31,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:31,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:31,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998226697] [2021-08-13 02:43:31,434 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:31,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:31,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:31,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:31,434 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:31,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 1194 transitions, 152718 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:31,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:31,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:31,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:33,761 INFO L129 PetriNetUnfolder]: 244/3710 cut-off events. [2021-08-13 02:43:33,762 INFO L130 PetriNetUnfolder]: For 1325777/1545569 co-relation queries the response was YES. [2021-08-13 02:43:33,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82863 conditions, 3710 events. 244/3710 cut-off events. For 1325777/1545569 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55246 event pairs, 0 based on Foata normal form. 223/3816 useless extension candidates. Maximal degree in co-relation 66148. Up to 751 conditions per place. [2021-08-13 02:43:33,826 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 767 selfloop transitions, 249 changer transitions 157/1193 dead transitions. [2021-08-13 02:43:33,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1193 transitions, 154934 flow [2021-08-13 02:43:33,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:33,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:33,827 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:33,827 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:33,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:33,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:33,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:33,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:33,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:33,828 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:33,828 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 463 predicate places. [2021-08-13 02:43:33,828 INFO L482 AbstractCegarLoop]: Abstraction has has 507 places, 1193 transitions, 154934 flow [2021-08-13 02:43:33,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:33,828 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:33,828 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:33,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-08-13 02:43:33,829 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:33,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:33,829 INFO L82 PathProgramCache]: Analyzing trace with hash -91405923, now seen corresponding path program 66 times [2021-08-13 02:43:33,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:33,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030828740] [2021-08-13 02:43:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:33,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:33,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:33,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:33,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:33,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:33,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:33,850 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:33,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:33,867 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:43:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:43:33,881 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:33,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:33,899 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:33,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:33,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:33,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030828740] [2021-08-13 02:43:33,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030828740] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:33,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:33,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:33,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199851783] [2021-08-13 02:43:33,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:33,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:33,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:33,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:33,922 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:33,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 1193 transitions, 154934 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:33,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:33,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:33,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:36,140 INFO L129 PetriNetUnfolder]: 244/3710 cut-off events. [2021-08-13 02:43:36,141 INFO L130 PetriNetUnfolder]: For 936036/1028610 co-relation queries the response was YES. [2021-08-13 02:43:36,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83973 conditions, 3710 events. 244/3710 cut-off events. For 936036/1028610 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55231 event pairs, 0 based on Foata normal form. 107/3700 useless extension candidates. Maximal degree in co-relation 67086. Up to 750 conditions per place. [2021-08-13 02:43:36,196 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 766 selfloop transitions, 244 changer transitions 162/1192 dead transitions. [2021-08-13 02:43:36,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1192 transitions, 157146 flow [2021-08-13 02:43:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:36,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:36,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:36,197 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:36,197 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:36,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:36,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:36,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:36,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:36,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:36,198 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:36,198 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 470 predicate places. [2021-08-13 02:43:36,198 INFO L482 AbstractCegarLoop]: Abstraction has has 514 places, 1192 transitions, 157146 flow [2021-08-13 02:43:36,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:36,198 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:36,198 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:36,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-08-13 02:43:36,198 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:36,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1405503585, now seen corresponding path program 67 times [2021-08-13 02:43:36,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:36,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702898352] [2021-08-13 02:43:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:36,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:36,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:36,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:36,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:36,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:36,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:36,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:36,238 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:36,259 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:36,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:36,277 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:36,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:36,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:36,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702898352] [2021-08-13 02:43:36,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702898352] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:36,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:36,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:36,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573029571] [2021-08-13 02:43:36,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:36,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:36,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:36,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:36,298 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:36,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 1192 transitions, 157146 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:36,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:36,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:36,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:38,449 INFO L129 PetriNetUnfolder]: 244/3706 cut-off events. [2021-08-13 02:43:38,449 INFO L130 PetriNetUnfolder]: For 1141664/1286934 co-relation queries the response was YES. [2021-08-13 02:43:38,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85069 conditions, 3706 events. 244/3706 cut-off events. For 1141664/1286934 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55224 event pairs, 0 based on Foata normal form. 170/3760 useless extension candidates. Maximal degree in co-relation 68012. Up to 749 conditions per place. [2021-08-13 02:43:38,632 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 767 selfloop transitions, 239 changer transitions 165/1191 dead transitions. [2021-08-13 02:43:38,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1191 transitions, 159354 flow [2021-08-13 02:43:38,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:38,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:38,634 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:38,634 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:38,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:38,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:38,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:38,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:38,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:38,635 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:38,635 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 477 predicate places. [2021-08-13 02:43:38,635 INFO L482 AbstractCegarLoop]: Abstraction has has 521 places, 1191 transitions, 159354 flow [2021-08-13 02:43:38,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:38,635 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:38,635 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:38,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-08-13 02:43:38,635 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:38,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:38,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1200613371, now seen corresponding path program 68 times [2021-08-13 02:43:38,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:38,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545093352] [2021-08-13 02:43:38,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:38,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:38,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:38,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:38,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:38,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:38,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:38,655 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:38,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:38,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:43:38,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:43:38,697 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:38,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:38,715 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:38,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:38,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:38,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545093352] [2021-08-13 02:43:38,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545093352] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:38,733 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:38,733 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:38,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986655978] [2021-08-13 02:43:38,733 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:38,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:38,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:38,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:38,733 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:38,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 521 places, 1191 transitions, 159354 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:38,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:38,734 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:38,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:40,872 INFO L129 PetriNetUnfolder]: 244/3705 cut-off events. [2021-08-13 02:43:40,872 INFO L130 PetriNetUnfolder]: For 1343792/1544167 co-relation queries the response was YES. [2021-08-13 02:43:40,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86172 conditions, 3705 events. 244/3705 cut-off events. For 1343792/1544167 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55138 event pairs, 0 based on Foata normal form. 202/3791 useless extension candidates. Maximal degree in co-relation 68947. Up to 748 conditions per place. [2021-08-13 02:43:40,927 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 764 selfloop transitions, 239 changer transitions 167/1190 dead transitions. [2021-08-13 02:43:40,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 1190 transitions, 161558 flow [2021-08-13 02:43:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:40,928 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:40,928 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:40,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:40,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:40,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:40,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:40,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:40,929 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:40,929 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 484 predicate places. [2021-08-13 02:43:40,929 INFO L482 AbstractCegarLoop]: Abstraction has has 528 places, 1190 transitions, 161558 flow [2021-08-13 02:43:40,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:40,929 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:40,930 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:40,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-08-13 02:43:40,930 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:40,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:40,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1778700025, now seen corresponding path program 69 times [2021-08-13 02:43:40,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:40,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195531490] [2021-08-13 02:43:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:40,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:40,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:40,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:40,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:40,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:40,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:40,947 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:40,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:40,962 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:43:40,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:43:40,983 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:40,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:41,000 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:41,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:41,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:41,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195531490] [2021-08-13 02:43:41,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195531490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:41,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:41,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:41,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993505162] [2021-08-13 02:43:41,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:41,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:41,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:41,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:41,018 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:41,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1190 transitions, 161558 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:41,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:41,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:41,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:43,277 INFO L129 PetriNetUnfolder]: 244/3707 cut-off events. [2021-08-13 02:43:43,277 INFO L130 PetriNetUnfolder]: For 1119420/1243101 co-relation queries the response was YES. [2021-08-13 02:43:43,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87282 conditions, 3707 events. 244/3707 cut-off events. For 1119420/1243101 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55242 event pairs, 0 based on Foata normal form. 122/3712 useless extension candidates. Maximal degree in co-relation 69891. Up to 747 conditions per place. [2021-08-13 02:43:43,340 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 761 selfloop transitions, 237 changer transitions 171/1189 dead transitions. [2021-08-13 02:43:43,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1189 transitions, 163758 flow [2021-08-13 02:43:43,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:43,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:43,341 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:43,341 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:43,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:43,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:43,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:43,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:43,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:43,342 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:43,342 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 491 predicate places. [2021-08-13 02:43:43,342 INFO L482 AbstractCegarLoop]: Abstraction has has 535 places, 1189 transitions, 163758 flow [2021-08-13 02:43:43,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:43,342 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:43,342 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:43,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-08-13 02:43:43,342 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:43,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:43,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1220282421, now seen corresponding path program 70 times [2021-08-13 02:43:43,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:43,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744748238] [2021-08-13 02:43:43,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:43,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:43,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:43,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:43,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:43,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:43,366 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:43,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:43,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:43:43,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:43:43,413 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:43,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:43,431 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:43,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:43,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:43,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744748238] [2021-08-13 02:43:43,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744748238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:43,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:43,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:43,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074682492] [2021-08-13 02:43:43,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:43,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:43,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:43,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:43,453 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:43,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1189 transitions, 163758 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:43,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:43,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:43,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:45,702 INFO L129 PetriNetUnfolder]: 244/3706 cut-off events. [2021-08-13 02:43:45,703 INFO L130 PetriNetUnfolder]: For 1054267/1156569 co-relation queries the response was YES. [2021-08-13 02:43:45,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88380 conditions, 3706 events. 244/3706 cut-off events. For 1054267/1156569 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55192 event pairs, 0 based on Foata normal form. 107/3697 useless extension candidates. Maximal degree in co-relation 70825. Up to 746 conditions per place. [2021-08-13 02:43:45,758 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 767 selfloop transitions, 227 changer transitions 174/1188 dead transitions. [2021-08-13 02:43:45,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 1188 transitions, 165954 flow [2021-08-13 02:43:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:45,759 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:45,759 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:45,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:45,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:45,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:45,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:45,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:45,760 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:45,760 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 498 predicate places. [2021-08-13 02:43:45,760 INFO L482 AbstractCegarLoop]: Abstraction has has 542 places, 1188 transitions, 165954 flow [2021-08-13 02:43:45,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:45,760 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:45,760 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:45,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-08-13 02:43:45,760 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:45,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:45,760 INFO L82 PathProgramCache]: Analyzing trace with hash 154264053, now seen corresponding path program 71 times [2021-08-13 02:43:45,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:45,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140352913] [2021-08-13 02:43:45,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:45,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:45,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:45,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:45,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:45,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:45,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:45,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:45,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:45,797 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:43:45,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:43:45,817 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:43:45,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:43:45,963 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-08-13 02:43:45,964 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:45,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:45,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:45,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140352913] [2021-08-13 02:43:45,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140352913] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:45,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:45,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:45,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559572647] [2021-08-13 02:43:45,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:45,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:45,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:45,982 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:45,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 1188 transitions, 165954 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:45,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:45,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:45,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:48,322 INFO L129 PetriNetUnfolder]: 244/3709 cut-off events. [2021-08-13 02:43:48,322 INFO L130 PetriNetUnfolder]: For 1084942/1189676 co-relation queries the response was YES. [2021-08-13 02:43:48,365 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89488 conditions, 3709 events. 244/3709 cut-off events. For 1084942/1189676 co-relation queries the response was YES. Maximal size of possible extension queue 673. Compared 55195 event pairs, 0 based on Foata normal form. 107/3698 useless extension candidates. Maximal degree in co-relation 71771. Up to 745 conditions per place. [2021-08-13 02:43:48,380 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 760 selfloop transitions, 229 changer transitions 178/1187 dead transitions. [2021-08-13 02:43:48,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 1187 transitions, 168146 flow [2021-08-13 02:43:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:48,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:48,382 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:48,382 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:48,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:48,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:48,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:48,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:48,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:48,383 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:48,383 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 505 predicate places. [2021-08-13 02:43:48,383 INFO L482 AbstractCegarLoop]: Abstraction has has 549 places, 1187 transitions, 168146 flow [2021-08-13 02:43:48,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:48,383 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:48,383 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:48,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-08-13 02:43:48,383 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:48,383 INFO L82 PathProgramCache]: Analyzing trace with hash -909918889, now seen corresponding path program 72 times [2021-08-13 02:43:48,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:48,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859007398] [2021-08-13 02:43:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:48,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:48,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:48,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:48,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:48,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:48,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:48,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:48,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:48,417 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:48,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:48,431 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:48,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:48,450 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:48,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:48,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:48,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859007398] [2021-08-13 02:43:48,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859007398] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:48,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:48,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:48,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970101962] [2021-08-13 02:43:48,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:48,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:48,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:48,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:48,470 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:48,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1187 transitions, 168146 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:48,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:48,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:48,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:51,130 INFO L129 PetriNetUnfolder]: 245/3925 cut-off events. [2021-08-13 02:43:51,131 INFO L130 PetriNetUnfolder]: For 1711512/1975166 co-relation queries the response was YES. [2021-08-13 02:43:51,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95091 conditions, 3925 events. 245/3925 cut-off events. For 1711512/1975166 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59324 event pairs, 0 based on Foata normal form. 223/4029 useless extension candidates. Maximal degree in co-relation 75618. Up to 780 conditions per place. [2021-08-13 02:43:51,256 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 800 selfloop transitions, 245 changer transitions 178/1243 dead transitions. [2021-08-13 02:43:51,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 1243 transitions, 178656 flow [2021-08-13 02:43:51,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:51,257 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:51,258 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:51,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:51,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:51,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:51,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:51,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:51,259 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:51,259 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 512 predicate places. [2021-08-13 02:43:51,259 INFO L482 AbstractCegarLoop]: Abstraction has has 556 places, 1243 transitions, 178656 flow [2021-08-13 02:43:51,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:51,259 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:51,259 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:51,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-08-13 02:43:51,259 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:51,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:51,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1105884209, now seen corresponding path program 73 times [2021-08-13 02:43:51,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:51,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448898875] [2021-08-13 02:43:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:51,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:51,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:51,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:51,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:51,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:51,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:51,286 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:43:51,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:43:51,300 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:51,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:51,317 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:51,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:51,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:51,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448898875] [2021-08-13 02:43:51,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448898875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:51,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:51,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:51,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790199911] [2021-08-13 02:43:51,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:51,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:51,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:51,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:51,335 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:51,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 1243 transitions, 178656 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:51,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:51,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:51,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:53,842 INFO L129 PetriNetUnfolder]: 245/3928 cut-off events. [2021-08-13 02:43:53,842 INFO L130 PetriNetUnfolder]: For 1200411/1309997 co-relation queries the response was YES. [2021-08-13 02:43:53,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96251 conditions, 3928 events. 245/3928 cut-off events. For 1200411/1309997 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59465 event pairs, 0 based on Foata normal form. 105/3913 useless extension candidates. Maximal degree in co-relation 76599. Up to 779 conditions per place. [2021-08-13 02:43:53,901 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 804 selfloop transitions, 238 changer transitions 180/1242 dead transitions. [2021-08-13 02:43:53,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1242 transitions, 180954 flow [2021-08-13 02:43:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:53,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:53,902 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:53,902 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:53,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:53,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:53,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:53,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:53,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:53,903 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:53,903 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 519 predicate places. [2021-08-13 02:43:53,903 INFO L482 AbstractCegarLoop]: Abstraction has has 563 places, 1242 transitions, 180954 flow [2021-08-13 02:43:53,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:53,904 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:53,904 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:53,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-08-13 02:43:53,904 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:53,904 INFO L82 PathProgramCache]: Analyzing trace with hash -535699647, now seen corresponding path program 74 times [2021-08-13 02:43:53,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:53,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245912856] [2021-08-13 02:43:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:53,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:53,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:53,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:53,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:53,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:53,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:53,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:53,934 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:43:53,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:43:53,946 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:53,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:53,961 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:53,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:54,077 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-08-13 02:43:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:54,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:54,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245912856] [2021-08-13 02:43:54,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245912856] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:54,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:54,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:54,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776014654] [2021-08-13 02:43:54,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:54,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:54,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:54,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:54,079 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:54,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 1242 transitions, 180954 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:54,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:54,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:54,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:56,631 INFO L129 PetriNetUnfolder]: 245/3927 cut-off events. [2021-08-13 02:43:56,631 INFO L130 PetriNetUnfolder]: For 1233839/1345857 co-relation queries the response was YES. [2021-08-13 02:43:56,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97399 conditions, 3927 events. 245/3927 cut-off events. For 1233839/1345857 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59374 event pairs, 0 based on Foata normal form. 105/3912 useless extension candidates. Maximal degree in co-relation 77570. Up to 778 conditions per place. [2021-08-13 02:43:56,690 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 797 selfloop transitions, 239 changer transitions 185/1241 dead transitions. [2021-08-13 02:43:56,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1241 transitions, 183248 flow [2021-08-13 02:43:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:56,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:56,691 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:56,691 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:56,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:56,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:56,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:56,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:56,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:56,692 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:56,693 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 526 predicate places. [2021-08-13 02:43:56,693 INFO L482 AbstractCegarLoop]: Abstraction has has 570 places, 1241 transitions, 183248 flow [2021-08-13 02:43:56,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:56,693 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:56,693 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:56,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-08-13 02:43:56,693 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:56,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:56,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1358796725, now seen corresponding path program 75 times [2021-08-13 02:43:56,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:56,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093503228] [2021-08-13 02:43:56,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:56,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:56,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:56,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:56,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:56,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:56,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:56,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:56,725 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:43:56,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:43:56,748 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:56,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:56,765 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:56,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:56,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:56,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093503228] [2021-08-13 02:43:56,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093503228] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:56,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:56,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:56,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691772131] [2021-08-13 02:43:56,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:56,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:56,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:56,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:56,783 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:56,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1241 transitions, 183248 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:56,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:56,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:56,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:43:59,595 INFO L129 PetriNetUnfolder]: 245/3924 cut-off events. [2021-08-13 02:43:59,595 INFO L130 PetriNetUnfolder]: For 1870969/2153421 co-relation queries the response was YES. [2021-08-13 02:43:59,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98541 conditions, 3924 events. 245/3924 cut-off events. For 1870969/2153421 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59288 event pairs, 0 based on Foata normal form. 223/4026 useless extension candidates. Maximal degree in co-relation 78537. Up to 777 conditions per place. [2021-08-13 02:43:59,760 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 793 selfloop transitions, 240 changer transitions 187/1240 dead transitions. [2021-08-13 02:43:59,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 1240 transitions, 185538 flow [2021-08-13 02:43:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:43:59,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:43:59,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:43:59,762 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:43:59,762 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:43:59,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:43:59,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:43:59,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:43:59,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:59,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:59,773 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:59,773 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 533 predicate places. [2021-08-13 02:43:59,773 INFO L482 AbstractCegarLoop]: Abstraction has has 577 places, 1240 transitions, 185538 flow [2021-08-13 02:43:59,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:59,773 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:43:59,774 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:43:59,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-08-13 02:43:59,774 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:43:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:43:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash -510631087, now seen corresponding path program 76 times [2021-08-13 02:43:59,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:43:59,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98566994] [2021-08-13 02:43:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:43:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:43:59,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:43:59,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:59,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:43:59,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:59,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:43:59,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:43:59,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:43:59,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:43:59,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:43:59,855 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:43:59,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:43:59,874 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:43:59,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:43:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:43:59,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:43:59,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98566994] [2021-08-13 02:43:59,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98566994] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:43:59,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:43:59,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:43:59,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746353742] [2021-08-13 02:43:59,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:43:59,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:43:59,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:43:59,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:43:59,908 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:43:59,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1240 transitions, 185538 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:43:59,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:43:59,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:43:59,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:02,924 INFO L129 PetriNetUnfolder]: 245/3923 cut-off events. [2021-08-13 02:44:02,925 INFO L130 PetriNetUnfolder]: For 1304882/1421776 co-relation queries the response was YES. [2021-08-13 02:44:02,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99683 conditions, 3923 events. 245/3923 cut-off events. For 1304882/1421776 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59356 event pairs, 0 based on Foata normal form. 107/3912 useless extension candidates. Maximal degree in co-relation 79506. Up to 776 conditions per place. [2021-08-13 02:44:02,986 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 793 selfloop transitions, 236 changer transitions 190/1239 dead transitions. [2021-08-13 02:44:02,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1239 transitions, 187824 flow [2021-08-13 02:44:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:02,987 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:02,987 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:02,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:02,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:02,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:02,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:02,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:02,988 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:02,988 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 540 predicate places. [2021-08-13 02:44:02,988 INFO L482 AbstractCegarLoop]: Abstraction has has 584 places, 1239 transitions, 187824 flow [2021-08-13 02:44:02,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:02,988 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:02,988 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:02,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-08-13 02:44:02,988 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:02,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1105644287, now seen corresponding path program 77 times [2021-08-13 02:44:02,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:02,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773152402] [2021-08-13 02:44:02,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:03,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:03,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:03,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:03,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:03,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:03,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:03,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:03,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:44:03,019 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:03,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:03,033 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:03,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:03,051 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:03,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:03,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773152402] [2021-08-13 02:44:03,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773152402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:03,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:03,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:03,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557286208] [2021-08-13 02:44:03,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:03,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:03,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:03,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:03,068 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:03,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 584 places, 1239 transitions, 187824 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:03,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:03,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:03,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:05,786 INFO L129 PetriNetUnfolder]: 245/3921 cut-off events. [2021-08-13 02:44:05,787 INFO L130 PetriNetUnfolder]: For 1339720/1459046 co-relation queries the response was YES. [2021-08-13 02:44:05,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100823 conditions, 3921 events. 245/3921 cut-off events. For 1339720/1459046 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 59260 event pairs, 0 based on Foata normal form. 107/3910 useless extension candidates. Maximal degree in co-relation 80475. Up to 775 conditions per place. [2021-08-13 02:44:05,848 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 794 selfloop transitions, 229 changer transitions 195/1238 dead transitions. [2021-08-13 02:44:05,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 1238 transitions, 190106 flow [2021-08-13 02:44:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:05,849 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:05,849 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:05,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:05,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:05,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:05,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:05,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:05,850 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:05,851 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 547 predicate places. [2021-08-13 02:44:05,851 INFO L482 AbstractCegarLoop]: Abstraction has has 591 places, 1238 transitions, 190106 flow [2021-08-13 02:44:05,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:05,851 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:05,851 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:05,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-08-13 02:44:05,851 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:05,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1684125983, now seen corresponding path program 78 times [2021-08-13 02:44:05,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:05,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959263571] [2021-08-13 02:44:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:05,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:05,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:05,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:05,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:05,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:05,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:05,882 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:05,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:05,890 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:05,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:05,902 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:05,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:05,926 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:05,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:05,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:05,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959263571] [2021-08-13 02:44:05,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959263571] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:05,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:05,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:05,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147514940] [2021-08-13 02:44:05,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:05,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:05,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:05,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:05,944 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:05,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 1238 transitions, 190106 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:05,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:05,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:05,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:08,867 INFO L129 PetriNetUnfolder]: 245/4106 cut-off events. [2021-08-13 02:44:08,867 INFO L130 PetriNetUnfolder]: For 1560305/1712660 co-relation queries the response was YES. [2021-08-13 02:44:08,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106134 conditions, 4106 events. 245/4106 cut-off events. For 1560305/1712660 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62855 event pairs, 0 based on Foata normal form. 88/4071 useless extension candidates. Maximal degree in co-relation 84141. Up to 805 conditions per place. [2021-08-13 02:44:08,933 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 812 selfloop transitions, 257 changer transitions 197/1286 dead transitions. [2021-08-13 02:44:08,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1286 transitions, 200126 flow [2021-08-13 02:44:08,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:08,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:08,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:08,934 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:08,934 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:08,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:08,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:08,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:08,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:08,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:08,935 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:08,935 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 554 predicate places. [2021-08-13 02:44:08,935 INFO L482 AbstractCegarLoop]: Abstraction has has 598 places, 1286 transitions, 200126 flow [2021-08-13 02:44:08,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:08,935 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:08,935 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:08,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-08-13 02:44:08,935 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:08,935 INFO L82 PathProgramCache]: Analyzing trace with hash 211070585, now seen corresponding path program 79 times [2021-08-13 02:44:08,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:08,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85440259] [2021-08-13 02:44:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:08,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:08,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:08,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:08,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:08,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:08,956 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:08,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:08,966 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:08,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:08,979 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:08,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:08,995 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:08,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:09,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:09,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85440259] [2021-08-13 02:44:09,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85440259] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:09,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:09,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:09,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166920951] [2021-08-13 02:44:09,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:09,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:09,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:09,013 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:09,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 1286 transitions, 200126 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:09,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:09,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:09,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:12,062 INFO L129 PetriNetUnfolder]: 245/4105 cut-off events. [2021-08-13 02:44:12,062 INFO L130 PetriNetUnfolder]: For 1739213/1931681 co-relation queries the response was YES. [2021-08-13 02:44:12,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107321 conditions, 4105 events. 245/4105 cut-off events. For 1739213/1931681 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62720 event pairs, 0 based on Foata normal form. 92/4074 useless extension candidates. Maximal degree in co-relation 85143. Up to 804 conditions per place. [2021-08-13 02:44:12,127 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 810 selfloop transitions, 255 changer transitions 200/1285 dead transitions. [2021-08-13 02:44:12,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 1285 transitions, 202498 flow [2021-08-13 02:44:12,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:12,128 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:12,128 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:12,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:12,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:12,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:12,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:12,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:12,129 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:12,129 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 561 predicate places. [2021-08-13 02:44:12,129 INFO L482 AbstractCegarLoop]: Abstraction has has 605 places, 1285 transitions, 202498 flow [2021-08-13 02:44:12,129 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:12,129 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:12,129 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:12,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-08-13 02:44:12,129 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:12,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:12,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1833330625, now seen corresponding path program 80 times [2021-08-13 02:44:12,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:12,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507041259] [2021-08-13 02:44:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:12,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:12,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:12,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:12,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:12,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:12,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:12,147 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:12,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:12,164 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:12,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:12,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:12,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:12,194 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:12,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:12,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:12,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507041259] [2021-08-13 02:44:12,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507041259] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:12,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:12,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:12,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197668475] [2021-08-13 02:44:12,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:12,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:12,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:12,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:12,211 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:12,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 1285 transitions, 202498 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:12,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:12,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:12,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:15,372 INFO L129 PetriNetUnfolder]: 245/4104 cut-off events. [2021-08-13 02:44:15,372 INFO L130 PetriNetUnfolder]: For 1907356/2135464 co-relation queries the response was YES. [2021-08-13 02:44:15,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108506 conditions, 4104 events. 245/4104 cut-off events. For 1907356/2135464 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62723 event pairs, 0 based on Foata normal form. 105/4086 useless extension candidates. Maximal degree in co-relation 86145. Up to 803 conditions per place. [2021-08-13 02:44:15,438 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 799 selfloop transitions, 263 changer transitions 202/1284 dead transitions. [2021-08-13 02:44:15,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 1284 transitions, 204866 flow [2021-08-13 02:44:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:15,440 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:15,440 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:15,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:15,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:15,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:15,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:15,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:15,441 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:15,441 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 568 predicate places. [2021-08-13 02:44:15,441 INFO L482 AbstractCegarLoop]: Abstraction has has 612 places, 1284 transitions, 204866 flow [2021-08-13 02:44:15,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:15,441 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:15,441 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:15,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-08-13 02:44:15,441 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:15,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:15,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1464184719, now seen corresponding path program 81 times [2021-08-13 02:44:15,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:15,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26413639] [2021-08-13 02:44:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:15,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:15,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:15,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:15,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:15,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:15,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:15,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:15,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:15,475 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:15,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:15,489 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:15,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:15,506 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:15,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:15,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:15,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:15,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26413639] [2021-08-13 02:44:15,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26413639] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:15,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:15,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:15,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037325147] [2021-08-13 02:44:15,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:15,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:15,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:15,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:15,523 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:15,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1284 transitions, 204866 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:15,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:15,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:15,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:18,360 INFO L129 PetriNetUnfolder]: 245/4103 cut-off events. [2021-08-13 02:44:18,360 INFO L130 PetriNetUnfolder]: For 1542341/1674259 co-relation queries the response was YES. [2021-08-13 02:44:18,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109689 conditions, 4103 events. 245/4103 cut-off events. For 1542341/1674259 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62707 event pairs, 0 based on Foata normal form. 75/4055 useless extension candidates. Maximal degree in co-relation 87147. Up to 802 conditions per place. [2021-08-13 02:44:18,424 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 805 selfloop transitions, 256 changer transitions 202/1283 dead transitions. [2021-08-13 02:44:18,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 1283 transitions, 207230 flow [2021-08-13 02:44:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:18,425 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:18,425 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:18,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:18,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:18,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:18,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:18,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:18,426 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:18,426 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 575 predicate places. [2021-08-13 02:44:18,426 INFO L482 AbstractCegarLoop]: Abstraction has has 619 places, 1283 transitions, 207230 flow [2021-08-13 02:44:18,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:18,427 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:18,427 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:18,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-08-13 02:44:18,427 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:18,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:18,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2110886207, now seen corresponding path program 82 times [2021-08-13 02:44:18,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:18,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725142910] [2021-08-13 02:44:18,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:18,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:18,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:18,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:18,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:18,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:18,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:18,446 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:18,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:18,455 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:18,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:18,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:18,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:18,485 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:18,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:18,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:18,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725142910] [2021-08-13 02:44:18,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725142910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:18,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:18,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:18,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756540931] [2021-08-13 02:44:18,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:18,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:18,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:18,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:18,502 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:18,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 1283 transitions, 207230 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:18,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:18,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:18,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:21,559 INFO L129 PetriNetUnfolder]: 245/4102 cut-off events. [2021-08-13 02:44:21,559 INFO L130 PetriNetUnfolder]: For 2028668/2268033 co-relation queries the response was YES. [2021-08-13 02:44:21,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110870 conditions, 4102 events. 245/4102 cut-off events. For 2028668/2268033 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62725 event pairs, 0 based on Foata normal form. 107/4086 useless extension candidates. Maximal degree in co-relation 88149. Up to 801 conditions per place. [2021-08-13 02:44:21,627 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 805 selfloop transitions, 250 changer transitions 207/1282 dead transitions. [2021-08-13 02:44:21,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 1282 transitions, 209590 flow [2021-08-13 02:44:21,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:21,628 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:21,628 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:21,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:21,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:21,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:21,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:21,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:21,629 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:21,630 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 582 predicate places. [2021-08-13 02:44:21,630 INFO L482 AbstractCegarLoop]: Abstraction has has 626 places, 1282 transitions, 209590 flow [2021-08-13 02:44:21,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:21,630 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:21,630 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:21,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-08-13 02:44:21,630 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:21,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:21,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1125458977, now seen corresponding path program 83 times [2021-08-13 02:44:21,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:21,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183348845] [2021-08-13 02:44:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:21,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:21,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:21,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:21,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:21,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:21,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:21,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:21,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:21,664 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:21,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:21,677 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:21,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:21,694 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:21,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:21,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:21,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183348845] [2021-08-13 02:44:21,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183348845] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:21,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:21,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:21,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872492496] [2021-08-13 02:44:21,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:21,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:21,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:21,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:21,802 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:21,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 1282 transitions, 209590 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:21,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:21,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:21,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:24,872 INFO L129 PetriNetUnfolder]: 245/4103 cut-off events. [2021-08-13 02:44:24,873 INFO L130 PetriNetUnfolder]: For 1616839/1755209 co-relation queries the response was YES. [2021-08-13 02:44:24,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112053 conditions, 4103 events. 245/4103 cut-off events. For 1616839/1755209 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62743 event pairs, 0 based on Foata normal form. 73/4054 useless extension candidates. Maximal degree in co-relation 89155. Up to 800 conditions per place. [2021-08-13 02:44:24,941 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 792 selfloop transitions, 259 changer transitions 210/1281 dead transitions. [2021-08-13 02:44:24,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 1281 transitions, 211946 flow [2021-08-13 02:44:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:24,942 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:24,942 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:24,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:24,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:24,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:24,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:24,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:24,943 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:24,943 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 589 predicate places. [2021-08-13 02:44:24,943 INFO L482 AbstractCegarLoop]: Abstraction has has 633 places, 1281 transitions, 211946 flow [2021-08-13 02:44:24,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:24,943 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:24,943 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:24,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-08-13 02:44:24,943 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:24,943 INFO L82 PathProgramCache]: Analyzing trace with hash 988450507, now seen corresponding path program 84 times [2021-08-13 02:44:24,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:24,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369659262] [2021-08-13 02:44:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:24,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:24,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:24,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:24,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:24,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:24,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:24,960 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:24,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:24,969 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:24,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:24,981 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:24,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:24,998 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:24,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:25,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:25,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369659262] [2021-08-13 02:44:25,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369659262] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:25,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:25,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:25,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376949253] [2021-08-13 02:44:25,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:25,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:25,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:25,016 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:25,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 1281 transitions, 211946 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:25,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:25,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:25,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:28,174 INFO L129 PetriNetUnfolder]: 245/4100 cut-off events. [2021-08-13 02:44:28,174 INFO L130 PetriNetUnfolder]: For 1818545/1996336 co-relation queries the response was YES. [2021-08-13 02:44:28,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113226 conditions, 4100 events. 245/4100 cut-off events. For 1818545/1996336 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62591 event pairs, 0 based on Foata normal form. 88/4065 useless extension candidates. Maximal degree in co-relation 90153. Up to 799 conditions per place. [2021-08-13 02:44:28,317 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 798 selfloop transitions, 250 changer transitions 212/1280 dead transitions. [2021-08-13 02:44:28,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 1280 transitions, 214298 flow [2021-08-13 02:44:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:28,318 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:28,319 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:28,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:28,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:28,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:28,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:28,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:28,320 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:28,320 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 596 predicate places. [2021-08-13 02:44:28,320 INFO L482 AbstractCegarLoop]: Abstraction has has 640 places, 1280 transitions, 214298 flow [2021-08-13 02:44:28,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:28,320 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:28,320 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:28,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-08-13 02:44:28,320 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:28,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1696568995, now seen corresponding path program 85 times [2021-08-13 02:44:28,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:28,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256043757] [2021-08-13 02:44:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:28,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:28,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:28,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:28,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:28,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:28,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:28,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:28,372 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:28,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:28,389 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:28,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:28,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:28,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256043757] [2021-08-13 02:44:28,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256043757] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:28,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:28,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:28,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131912310] [2021-08-13 02:44:28,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:28,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:28,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:28,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:28,407 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:28,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 1280 transitions, 214298 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:28,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:28,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:28,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:31,685 INFO L129 PetriNetUnfolder]: 245/4099 cut-off events. [2021-08-13 02:44:31,685 INFO L130 PetriNetUnfolder]: For 1696561/1841395 co-relation queries the response was YES. [2021-08-13 02:44:31,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114401 conditions, 4099 events. 245/4099 cut-off events. For 1696561/1841395 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62661 event pairs, 0 based on Foata normal form. 73/4049 useless extension candidates. Maximal degree in co-relation 91155. Up to 798 conditions per place. [2021-08-13 02:44:31,755 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 797 selfloop transitions, 246 changer transitions 216/1279 dead transitions. [2021-08-13 02:44:31,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 1279 transitions, 216646 flow [2021-08-13 02:44:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:31,756 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:31,756 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:31,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:31,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:31,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:31,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:31,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:31,757 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:31,757 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 603 predicate places. [2021-08-13 02:44:31,757 INFO L482 AbstractCegarLoop]: Abstraction has has 647 places, 1279 transitions, 216646 flow [2021-08-13 02:44:31,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:31,757 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:31,757 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:31,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-08-13 02:44:31,757 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:31,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1505858515, now seen corresponding path program 86 times [2021-08-13 02:44:31,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:31,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327041400] [2021-08-13 02:44:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:31,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:31,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:31,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:31,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:31,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:31,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:31,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:31,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:31,792 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:44:31,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:44:31,815 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:44:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:44:31,832 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:31,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:31,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:31,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327041400] [2021-08-13 02:44:31,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327041400] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:31,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:31,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:31,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311204927] [2021-08-13 02:44:31,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:31,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:31,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:31,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:31,849 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:31,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 1279 transitions, 216646 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:31,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:31,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:31,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:35,104 INFO L129 PetriNetUnfolder]: 245/4098 cut-off events. [2021-08-13 02:44:35,105 INFO L130 PetriNetUnfolder]: For 1909321/2095420 co-relation queries the response was YES. [2021-08-13 02:44:35,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115574 conditions, 4098 events. 245/4098 cut-off events. For 1909321/2095420 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62669 event pairs, 0 based on Foata normal form. 88/4063 useless extension candidates. Maximal degree in co-relation 92157. Up to 797 conditions per place. [2021-08-13 02:44:35,174 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 783 selfloop transitions, 259 changer transitions 216/1278 dead transitions. [2021-08-13 02:44:35,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 1278 transitions, 218990 flow [2021-08-13 02:44:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:35,175 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:35,175 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:35,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:35,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:35,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:35,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:35,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:35,176 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:35,176 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 610 predicate places. [2021-08-13 02:44:35,176 INFO L482 AbstractCegarLoop]: Abstraction has has 654 places, 1278 transitions, 218990 flow [2021-08-13 02:44:35,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:35,176 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:35,176 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:35,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-08-13 02:44:35,177 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:35,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:35,177 INFO L82 PathProgramCache]: Analyzing trace with hash -311706487, now seen corresponding path program 87 times [2021-08-13 02:44:35,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:35,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932090850] [2021-08-13 02:44:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:35,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:35,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:35,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:35,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:35,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:35,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:35,193 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:35,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:35,210 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:44:35,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:44:35,233 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:35,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:35,249 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:35,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:35,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:35,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:35,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932090850] [2021-08-13 02:44:35,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932090850] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:35,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:35,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:35,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737840505] [2021-08-13 02:44:35,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:35,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:35,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:35,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:35,266 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:35,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1278 transitions, 218990 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:35,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:35,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:35,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:38,386 INFO L129 PetriNetUnfolder]: 245/4097 cut-off events. [2021-08-13 02:44:38,387 INFO L130 PetriNetUnfolder]: For 2294028/2558563 co-relation queries the response was YES. [2021-08-13 02:44:38,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116745 conditions, 4097 events. 245/4097 cut-off events. For 2294028/2558563 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62679 event pairs, 0 based on Foata normal form. 107/4081 useless extension candidates. Maximal degree in co-relation 93159. Up to 796 conditions per place. [2021-08-13 02:44:38,471 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 780 selfloop transitions, 256 changer transitions 221/1277 dead transitions. [2021-08-13 02:44:38,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1277 transitions, 221330 flow [2021-08-13 02:44:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:38,472 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:38,472 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:38,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:38,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:38,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:38,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:38,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:38,473 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:38,473 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 617 predicate places. [2021-08-13 02:44:38,474 INFO L482 AbstractCegarLoop]: Abstraction has has 661 places, 1277 transitions, 221330 flow [2021-08-13 02:44:38,474 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:38,474 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:38,474 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:38,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-08-13 02:44:38,474 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:38,474 INFO L82 PathProgramCache]: Analyzing trace with hash -2063263389, now seen corresponding path program 88 times [2021-08-13 02:44:38,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:38,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600521515] [2021-08-13 02:44:38,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:38,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:38,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:38,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:38,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:38,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:38,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:38,493 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:38,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:38,511 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:44:38,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:44:38,535 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:38,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:38,552 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:38,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:38,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:38,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600521515] [2021-08-13 02:44:38,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600521515] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:38,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:38,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:38,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616872314] [2021-08-13 02:44:38,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:38,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:38,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:38,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:38,570 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:38,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 1277 transitions, 221330 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:38,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:38,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:38,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:41,853 INFO L129 PetriNetUnfolder]: 245/4097 cut-off events. [2021-08-13 02:44:41,853 INFO L130 PetriNetUnfolder]: For 2170380/2399868 co-relation queries the response was YES. [2021-08-13 02:44:41,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117916 conditions, 4097 events. 245/4097 cut-off events. For 2170380/2399868 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62663 event pairs, 0 based on Foata normal form. 94/4069 useless extension candidates. Maximal degree in co-relation 94163. Up to 795 conditions per place. [2021-08-13 02:44:41,928 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 778 selfloop transitions, 255 changer transitions 223/1276 dead transitions. [2021-08-13 02:44:41,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1276 transitions, 223666 flow [2021-08-13 02:44:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:41,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:41,929 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:41,929 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:41,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:41,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:41,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:41,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:41,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:41,930 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:41,930 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 624 predicate places. [2021-08-13 02:44:41,930 INFO L482 AbstractCegarLoop]: Abstraction has has 668 places, 1276 transitions, 223666 flow [2021-08-13 02:44:41,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:41,930 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:41,931 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:41,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-08-13 02:44:41,931 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:41,931 INFO L82 PathProgramCache]: Analyzing trace with hash 938578967, now seen corresponding path program 89 times [2021-08-13 02:44:41,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:41,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787152508] [2021-08-13 02:44:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:41,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:41,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:41,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:41,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:41,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:41,948 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:44:41,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:44:41,964 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:44:41,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:44:41,986 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:44:41,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:44:42,004 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:42,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:42,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:42,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787152508] [2021-08-13 02:44:42,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787152508] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:42,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:42,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:42,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214116739] [2021-08-13 02:44:42,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:42,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:42,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:42,022 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:42,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 1276 transitions, 223666 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:42,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:42,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:42,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:45,197 INFO L129 PetriNetUnfolder]: 245/4095 cut-off events. [2021-08-13 02:44:45,198 INFO L130 PetriNetUnfolder]: For 1975371/2147969 co-relation queries the response was YES. [2021-08-13 02:44:45,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119081 conditions, 4095 events. 245/4095 cut-off events. For 1975371/2147969 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62602 event pairs, 0 based on Foata normal form. 76/4048 useless extension candidates. Maximal degree in co-relation 95163. Up to 794 conditions per place. [2021-08-13 02:44:45,285 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 776 selfloop transitions, 252 changer transitions 227/1275 dead transitions. [2021-08-13 02:44:45,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 675 places, 1275 transitions, 225998 flow [2021-08-13 02:44:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:45,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:45,286 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:45,287 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:45,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:45,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:45,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:45,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:45,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:45,288 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:45,288 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 631 predicate places. [2021-08-13 02:44:45,288 INFO L482 AbstractCegarLoop]: Abstraction has has 675 places, 1275 transitions, 225998 flow [2021-08-13 02:44:45,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:45,288 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:45,288 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:45,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-08-13 02:44:45,288 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:45,288 INFO L82 PathProgramCache]: Analyzing trace with hash -520565829, now seen corresponding path program 90 times [2021-08-13 02:44:45,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:45,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047498049] [2021-08-13 02:44:45,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:45,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:45,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:45,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:45,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:45,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:45,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:45,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:45,332 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:45,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:45,347 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:45,368 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:45,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:45,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:45,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047498049] [2021-08-13 02:44:45,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047498049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:45,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:45,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:45,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480264454] [2021-08-13 02:44:45,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:45,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:45,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:45,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:45,387 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:45,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 675 places, 1275 transitions, 225998 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:45,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:45,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:45,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:48,533 INFO L129 PetriNetUnfolder]: 245/4094 cut-off events. [2021-08-13 02:44:48,533 INFO L130 PetriNetUnfolder]: For 2020372/2196280 co-relation queries the response was YES. [2021-08-13 02:44:48,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120246 conditions, 4094 events. 245/4094 cut-off events. For 2020372/2196280 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62606 event pairs, 0 based on Foata normal form. 76/4047 useless extension candidates. Maximal degree in co-relation 96165. Up to 793 conditions per place. [2021-08-13 02:44:48,693 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 774 selfloop transitions, 253 changer transitions 227/1274 dead transitions. [2021-08-13 02:44:48,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 682 places, 1274 transitions, 228326 flow [2021-08-13 02:44:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:48,694 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:48,694 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:48,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:48,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:48,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:48,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:48,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:48,695 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:48,695 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 638 predicate places. [2021-08-13 02:44:48,695 INFO L482 AbstractCegarLoop]: Abstraction has has 682 places, 1274 transitions, 228326 flow [2021-08-13 02:44:48,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:48,695 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:48,695 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:48,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-08-13 02:44:48,695 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:48,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1057808117, now seen corresponding path program 91 times [2021-08-13 02:44:48,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:48,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794083087] [2021-08-13 02:44:48,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:48,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:48,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:48,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:48,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:48,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:48,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:48,713 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:48,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:48,722 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:48,735 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:48,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:48,751 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:48,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:48,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:48,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:48,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794083087] [2021-08-13 02:44:48,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794083087] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:48,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:48,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:48,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711335904] [2021-08-13 02:44:48,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:48,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:48,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:48,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:48,768 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:48,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 1274 transitions, 228326 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:48,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:48,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:48,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:51,843 INFO L129 PetriNetUnfolder]: 245/4094 cut-off events. [2021-08-13 02:44:51,843 INFO L130 PetriNetUnfolder]: For 1951517/2115755 co-relation queries the response was YES. [2021-08-13 02:44:51,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121411 conditions, 4094 events. 245/4094 cut-off events. For 1951517/2115755 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62558 event pairs, 0 based on Foata normal form. 75/4047 useless extension candidates. Maximal degree in co-relation 97169. Up to 792 conditions per place. [2021-08-13 02:44:52,013 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 773 selfloop transitions, 253 changer transitions 227/1273 dead transitions. [2021-08-13 02:44:52,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 1273 transitions, 230650 flow [2021-08-13 02:44:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:52,014 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:52,014 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:52,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:52,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:52,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:52,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:52,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:52,015 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:52,015 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 645 predicate places. [2021-08-13 02:44:52,015 INFO L482 AbstractCegarLoop]: Abstraction has has 689 places, 1273 transitions, 230650 flow [2021-08-13 02:44:52,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:52,015 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:52,015 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:52,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-08-13 02:44:52,015 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:52,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1790357819, now seen corresponding path program 92 times [2021-08-13 02:44:52,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:52,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844117154] [2021-08-13 02:44:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:52,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:52,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:52,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:52,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:52,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:52,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:52,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:52,062 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:52,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:52,088 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:44:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:44:52,105 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:52,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:52,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844117154] [2021-08-13 02:44:52,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844117154] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:52,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:52,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:52,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20472601] [2021-08-13 02:44:52,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:52,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:52,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:52,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:52,124 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:52,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 1273 transitions, 230650 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:52,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:52,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:52,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:55,372 INFO L129 PetriNetUnfolder]: 245/4092 cut-off events. [2021-08-13 02:44:55,372 INFO L130 PetriNetUnfolder]: For 2195401/2406424 co-relation queries the response was YES. [2021-08-13 02:44:55,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122570 conditions, 4092 events. 245/4092 cut-off events. For 2195401/2406424 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62574 event pairs, 0 based on Foata normal form. 88/4057 useless extension candidates. Maximal degree in co-relation 98169. Up to 791 conditions per place. [2021-08-13 02:44:55,529 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 771 selfloop transitions, 254 changer transitions 227/1272 dead transitions. [2021-08-13 02:44:55,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 696 places, 1272 transitions, 232970 flow [2021-08-13 02:44:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:55,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:55,530 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:55,530 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:55,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:55,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:55,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:55,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:55,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:55,531 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:55,531 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 652 predicate places. [2021-08-13 02:44:55,531 INFO L482 AbstractCegarLoop]: Abstraction has has 696 places, 1272 transitions, 232970 flow [2021-08-13 02:44:55,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:55,532 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:55,532 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:55,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-08-13 02:44:55,532 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:55,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1635735199, now seen corresponding path program 93 times [2021-08-13 02:44:55,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:55,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506023572] [2021-08-13 02:44:55,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:55,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:55,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:55,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:55,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:55,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:55,556 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:55,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:55,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:44:55,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:44:55,578 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:55,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:55,596 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:55,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:55,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506023572] [2021-08-13 02:44:55,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506023572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:55,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:55,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:55,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845793667] [2021-08-13 02:44:55,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:55,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:55,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:55,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:55,613 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:55,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 696 places, 1272 transitions, 232970 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:55,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:55,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:55,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:44:58,941 INFO L129 PetriNetUnfolder]: 245/4091 cut-off events. [2021-08-13 02:44:58,941 INFO L130 PetriNetUnfolder]: For 2634669/2929408 co-relation queries the response was YES. [2021-08-13 02:44:58,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123729 conditions, 4091 events. 245/4091 cut-off events. For 2634669/2929408 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62569 event pairs, 0 based on Foata normal form. 107/4075 useless extension candidates. Maximal degree in co-relation 99171. Up to 790 conditions per place. [2021-08-13 02:44:59,014 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 772 selfloop transitions, 252 changer transitions 227/1271 dead transitions. [2021-08-13 02:44:59,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 703 places, 1271 transitions, 235286 flow [2021-08-13 02:44:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:44:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:44:59,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:44:59,015 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:44:59,015 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:44:59,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:44:59,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:44:59,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:44:59,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:59,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:59,016 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:59,016 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 659 predicate places. [2021-08-13 02:44:59,016 INFO L482 AbstractCegarLoop]: Abstraction has has 703 places, 1271 transitions, 235286 flow [2021-08-13 02:44:59,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:59,016 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:44:59,016 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:44:59,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-08-13 02:44:59,016 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:44:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:44:59,017 INFO L82 PathProgramCache]: Analyzing trace with hash 684472733, now seen corresponding path program 94 times [2021-08-13 02:44:59,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:44:59,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648863212] [2021-08-13 02:44:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:44:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:44:59,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:59,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:44:59,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:59,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:44:59,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:44:59,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:44:59,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:44:59,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:44:59,044 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:44:59,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:44:59,067 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:44:59,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:44:59,084 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:44:59,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:44:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:44:59,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:44:59,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648863212] [2021-08-13 02:44:59,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648863212] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:44:59,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:44:59,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:44:59,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030711036] [2021-08-13 02:44:59,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:44:59,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:44:59,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:44:59,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:44:59,101 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:44:59,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1271 transitions, 235286 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:44:59,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:44:59,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:44:59,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:02,619 INFO L129 PetriNetUnfolder]: 245/4090 cut-off events. [2021-08-13 02:45:02,619 INFO L130 PetriNetUnfolder]: For 2477768/2731916 co-relation queries the response was YES. [2021-08-13 02:45:02,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124886 conditions, 4090 events. 245/4090 cut-off events. For 2477768/2731916 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62511 event pairs, 0 based on Foata normal form. 92/4059 useless extension candidates. Maximal degree in co-relation 100173. Up to 789 conditions per place. [2021-08-13 02:45:02,693 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 766 selfloop transitions, 257 changer transitions 227/1270 dead transitions. [2021-08-13 02:45:02,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 710 places, 1270 transitions, 237598 flow [2021-08-13 02:45:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:02,694 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:02,694 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:02,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:02,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:02,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:02,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:02,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:02,695 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:02,695 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 666 predicate places. [2021-08-13 02:45:02,695 INFO L482 AbstractCegarLoop]: Abstraction has has 710 places, 1270 transitions, 237598 flow [2021-08-13 02:45:02,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:02,695 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:02,695 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:02,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-08-13 02:45:02,695 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:02,696 INFO L82 PathProgramCache]: Analyzing trace with hash 762445537, now seen corresponding path program 95 times [2021-08-13 02:45:02,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:02,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612850818] [2021-08-13 02:45:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:02,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:02,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:02,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:02,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:02,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:02,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:02,714 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:45:02,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:45:02,723 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:45:02,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:45:02,747 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:45:02,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:45:02,766 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:02,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:02,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612850818] [2021-08-13 02:45:02,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612850818] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:02,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:02,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:02,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789294567] [2021-08-13 02:45:02,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:02,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:02,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:02,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:02,784 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:02,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 710 places, 1270 transitions, 237598 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:02,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:02,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:02,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:06,506 INFO L129 PetriNetUnfolder]: 245/4089 cut-off events. [2021-08-13 02:45:06,506 INFO L130 PetriNetUnfolder]: For 2753496/3058303 co-relation queries the response was YES. [2021-08-13 02:45:06,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126041 conditions, 4089 events. 245/4089 cut-off events. For 2753496/3058303 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62497 event pairs, 0 based on Foata normal form. 107/4073 useless extension candidates. Maximal degree in co-relation 101175. Up to 788 conditions per place. [2021-08-13 02:45:06,581 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 759 selfloop transitions, 247 changer transitions 243/1269 dead transitions. [2021-08-13 02:45:06,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 1269 transitions, 239906 flow [2021-08-13 02:45:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:06,582 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:06,582 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:06,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:06,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:06,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:06,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:06,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:06,583 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:06,583 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 673 predicate places. [2021-08-13 02:45:06,583 INFO L482 AbstractCegarLoop]: Abstraction has has 717 places, 1269 transitions, 239906 flow [2021-08-13 02:45:06,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:06,583 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:06,583 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:06,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-08-13 02:45:06,584 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:06,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:06,584 INFO L82 PathProgramCache]: Analyzing trace with hash 2009123215, now seen corresponding path program 96 times [2021-08-13 02:45:06,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:06,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961532456] [2021-08-13 02:45:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:06,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:06,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:06,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:06,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:06,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:06,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:06,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:06,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:06,611 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:45:06,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:45:06,624 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:06,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:06,643 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:06,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:06,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:06,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:06,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961532456] [2021-08-13 02:45:06,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961532456] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:06,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:06,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:06,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616791871] [2021-08-13 02:45:06,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:06,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:06,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:06,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:06,662 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:06,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 1269 transitions, 239906 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:06,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:06,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:06,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:10,416 INFO L129 PetriNetUnfolder]: 245/4090 cut-off events. [2021-08-13 02:45:10,416 INFO L130 PetriNetUnfolder]: For 2169508/2349894 co-relation queries the response was YES. [2021-08-13 02:45:10,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127198 conditions, 4090 events. 245/4090 cut-off events. For 2169508/2349894 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62518 event pairs, 0 based on Foata normal form. 73/4041 useless extension candidates. Maximal degree in co-relation 102181. Up to 787 conditions per place. [2021-08-13 02:45:10,502 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 756 selfloop transitions, 247 changer transitions 245/1268 dead transitions. [2021-08-13 02:45:10,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 724 places, 1268 transitions, 242210 flow [2021-08-13 02:45:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:10,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:10,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:10,505 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:10,505 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:10,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:10,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:10,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:10,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:10,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:10,506 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:10,506 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 680 predicate places. [2021-08-13 02:45:10,506 INFO L482 AbstractCegarLoop]: Abstraction has has 724 places, 1268 transitions, 242210 flow [2021-08-13 02:45:10,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:10,506 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:10,506 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:10,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-08-13 02:45:10,506 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:10,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:10,507 INFO L82 PathProgramCache]: Analyzing trace with hash -94696627, now seen corresponding path program 97 times [2021-08-13 02:45:10,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:10,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647989484] [2021-08-13 02:45:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:10,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:10,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:10,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:10,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:10,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:10,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:10,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:10,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:10,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:45:10,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:45:10,546 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:10,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:10,563 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:10,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:10,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:10,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647989484] [2021-08-13 02:45:10,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647989484] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:10,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:10,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:10,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516146902] [2021-08-13 02:45:10,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:10,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:10,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:10,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:10,581 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:10,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 1268 transitions, 242210 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:10,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:10,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:10,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:14,540 INFO L129 PetriNetUnfolder]: 245/4087 cut-off events. [2021-08-13 02:45:14,540 INFO L130 PetriNetUnfolder]: For 2449201/2680994 co-relation queries the response was YES. [2021-08-13 02:45:14,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128345 conditions, 4087 events. 245/4087 cut-off events. For 2449201/2680994 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62533 event pairs, 0 based on Foata normal form. 88/4052 useless extension candidates. Maximal degree in co-relation 103179. Up to 786 conditions per place. [2021-08-13 02:45:14,619 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 754 selfloop transitions, 245 changer transitions 248/1267 dead transitions. [2021-08-13 02:45:14,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 731 places, 1267 transitions, 244510 flow [2021-08-13 02:45:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:14,620 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:14,620 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:14,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:14,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:14,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:14,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:14,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:14,621 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:14,622 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 687 predicate places. [2021-08-13 02:45:14,622 INFO L482 AbstractCegarLoop]: Abstraction has has 731 places, 1267 transitions, 244510 flow [2021-08-13 02:45:14,622 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:14,622 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:14,622 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:14,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-08-13 02:45:14,622 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:14,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1414260673, now seen corresponding path program 98 times [2021-08-13 02:45:14,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:14,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878857770] [2021-08-13 02:45:14,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:14,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:14,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:14,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:14,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:14,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:14,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:14,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:14,649 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:45:14,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:45:14,671 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:45:14,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:45:14,689 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:14,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:14,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878857770] [2021-08-13 02:45:14,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878857770] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:14,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:14,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:14,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588701350] [2021-08-13 02:45:14,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:14,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:14,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:14,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:14,707 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:14,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 731 places, 1267 transitions, 244510 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:14,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:14,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:14,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:18,464 INFO L129 PetriNetUnfolder]: 245/4086 cut-off events. [2021-08-13 02:45:18,464 INFO L130 PetriNetUnfolder]: For 2701319/2971927 co-relation queries the response was YES. [2021-08-13 02:45:18,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129494 conditions, 4086 events. 245/4086 cut-off events. For 2701319/2971927 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62404 event pairs, 0 based on Foata normal form. 94/4057 useless extension candidates. Maximal degree in co-relation 104181. Up to 785 conditions per place. [2021-08-13 02:45:18,539 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 748 selfloop transitions, 248 changer transitions 250/1266 dead transitions. [2021-08-13 02:45:18,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 1266 transitions, 246806 flow [2021-08-13 02:45:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:18,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:18,540 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:18,540 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:18,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:18,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:18,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:18,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:18,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:18,541 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:18,541 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 694 predicate places. [2021-08-13 02:45:18,541 INFO L482 AbstractCegarLoop]: Abstraction has has 738 places, 1266 transitions, 246806 flow [2021-08-13 02:45:18,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:18,541 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:18,541 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:18,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-08-13 02:45:18,541 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:18,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:18,542 INFO L82 PathProgramCache]: Analyzing trace with hash -660149955, now seen corresponding path program 99 times [2021-08-13 02:45:18,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:18,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363797466] [2021-08-13 02:45:18,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:18,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:18,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:18,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:18,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:18,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:18,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:18,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:18,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:18,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:45:18,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:45:18,588 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:18,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:18,605 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:18,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:18,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:18,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363797466] [2021-08-13 02:45:18,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363797466] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:18,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:18,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:18,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657272311] [2021-08-13 02:45:18,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:18,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:18,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:18,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:18,622 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:18,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 738 places, 1266 transitions, 246806 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:18,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:18,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:18,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:22,526 INFO L129 PetriNetUnfolder]: 245/4085 cut-off events. [2021-08-13 02:45:22,526 INFO L130 PetriNetUnfolder]: For 2522534/2761104 co-relation queries the response was YES. [2021-08-13 02:45:22,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130641 conditions, 4085 events. 245/4085 cut-off events. For 2522534/2761104 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62427 event pairs, 0 based on Foata normal form. 86/4048 useless extension candidates. Maximal degree in co-relation 105183. Up to 784 conditions per place. [2021-08-13 02:45:22,605 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 746 selfloop transitions, 246 changer transitions 253/1265 dead transitions. [2021-08-13 02:45:22,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 745 places, 1265 transitions, 249098 flow [2021-08-13 02:45:22,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:22,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:22,606 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:22,606 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:22,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:22,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:22,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:22,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:22,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:22,607 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:22,607 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 701 predicate places. [2021-08-13 02:45:22,607 INFO L482 AbstractCegarLoop]: Abstraction has has 745 places, 1265 transitions, 249098 flow [2021-08-13 02:45:22,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:22,607 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:22,607 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:22,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-08-13 02:45:22,607 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:22,607 INFO L82 PathProgramCache]: Analyzing trace with hash 631074171, now seen corresponding path program 100 times [2021-08-13 02:45:22,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:22,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749578252] [2021-08-13 02:45:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:22,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:22,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:22,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:22,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:22,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:22,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:22,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:22,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:22,764 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:22,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:22,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:22,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:22,801 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:22,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:22,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:22,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749578252] [2021-08-13 02:45:22,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749578252] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:22,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:22,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:22,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601326671] [2021-08-13 02:45:22,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:22,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:22,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:22,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:22,823 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:22,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 1265 transitions, 249098 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:22,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:22,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:22,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:26,571 INFO L129 PetriNetUnfolder]: 245/4084 cut-off events. [2021-08-13 02:45:26,572 INFO L130 PetriNetUnfolder]: For 2360386/2553712 co-relation queries the response was YES. [2021-08-13 02:45:26,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131786 conditions, 4084 events. 245/4084 cut-off events. For 2360386/2553712 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62371 event pairs, 0 based on Foata normal form. 75/4036 useless extension candidates. Maximal degree in co-relation 106185. Up to 783 conditions per place. [2021-08-13 02:45:26,650 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 744 selfloop transitions, 247 changer transitions 253/1264 dead transitions. [2021-08-13 02:45:26,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 752 places, 1264 transitions, 251386 flow [2021-08-13 02:45:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:26,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:26,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:26,651 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:26,651 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:26,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:26,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:26,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:26,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:26,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:26,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:26,652 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 708 predicate places. [2021-08-13 02:45:26,652 INFO L482 AbstractCegarLoop]: Abstraction has has 752 places, 1264 transitions, 251386 flow [2021-08-13 02:45:26,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:26,652 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:26,652 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:26,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-08-13 02:45:26,652 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:26,652 INFO L82 PathProgramCache]: Analyzing trace with hash -753197339, now seen corresponding path program 101 times [2021-08-13 02:45:26,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:26,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321911626] [2021-08-13 02:45:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:26,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:26,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:26,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:26,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:26,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:26,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:26,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:26,679 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:26,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:26,692 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:45:26,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:45:26,710 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:26,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:26,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:26,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321911626] [2021-08-13 02:45:26,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321911626] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:26,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:26,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:26,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656280996] [2021-08-13 02:45:26,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:26,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:26,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:26,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:26,727 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:26,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 752 places, 1264 transitions, 251386 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:26,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:26,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:26,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:31,144 INFO L129 PetriNetUnfolder]: 245/4083 cut-off events. [2021-08-13 02:45:31,144 INFO L130 PetriNetUnfolder]: For 2662051/2910460 co-relation queries the response was YES. [2021-08-13 02:45:31,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132929 conditions, 4083 events. 245/4083 cut-off events. For 2662051/2910460 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62432 event pairs, 0 based on Foata normal form. 88/4048 useless extension candidates. Maximal degree in co-relation 107187. Up to 782 conditions per place. [2021-08-13 02:45:31,224 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 741 selfloop transitions, 242 changer transitions 260/1263 dead transitions. [2021-08-13 02:45:31,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 759 places, 1263 transitions, 253670 flow [2021-08-13 02:45:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:31,225 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:31,225 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:31,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:31,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:31,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:31,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:31,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:31,226 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:31,226 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 715 predicate places. [2021-08-13 02:45:31,226 INFO L482 AbstractCegarLoop]: Abstraction has has 759 places, 1263 transitions, 253670 flow [2021-08-13 02:45:31,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:31,226 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:31,226 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:31,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-08-13 02:45:31,227 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:31,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1528265887, now seen corresponding path program 102 times [2021-08-13 02:45:31,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:31,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007784337] [2021-08-13 02:45:31,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:31,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:31,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:31,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:31,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:31,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:31,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:31,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:31,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:31,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:45:31,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:45:31,266 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:31,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:31,284 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:31,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:31,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:31,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007784337] [2021-08-13 02:45:31,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007784337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:31,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:31,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:31,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024365807] [2021-08-13 02:45:31,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:31,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:31,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:31,301 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:31,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 1263 transitions, 253670 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:31,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:31,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:31,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:36,539 INFO L129 PetriNetUnfolder]: 245/4083 cut-off events. [2021-08-13 02:45:36,539 INFO L130 PetriNetUnfolder]: For 2456241/2656031 co-relation queries the response was YES. [2021-08-13 02:45:36,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134072 conditions, 4083 events. 245/4083 cut-off events. For 2456241/2656031 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62388 event pairs, 0 based on Foata normal form. 75/4036 useless extension candidates. Maximal degree in co-relation 108191. Up to 781 conditions per place. [2021-08-13 02:45:36,618 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 743 selfloop transitions, 239 changer transitions 260/1262 dead transitions. [2021-08-13 02:45:36,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 766 places, 1262 transitions, 255950 flow [2021-08-13 02:45:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:36,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:36,619 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:36,619 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:36,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:36,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:36,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:36,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:36,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:36,620 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:36,620 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 722 predicate places. [2021-08-13 02:45:36,620 INFO L482 AbstractCegarLoop]: Abstraction has has 766 places, 1262 transitions, 255950 flow [2021-08-13 02:45:36,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:36,620 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:36,620 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:36,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-08-13 02:45:36,620 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:36,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:36,620 INFO L82 PathProgramCache]: Analyzing trace with hash 658202147, now seen corresponding path program 103 times [2021-08-13 02:45:36,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:36,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634641599] [2021-08-13 02:45:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:36,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:36,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:36,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:36,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:36,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:36,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:36,638 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:45:36,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:45:36,647 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:36,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:36,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:36,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:36,678 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:36,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:36,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:36,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634641599] [2021-08-13 02:45:36,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634641599] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:36,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:36,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:36,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821363982] [2021-08-13 02:45:36,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:36,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:36,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:36,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:36,696 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:36,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 766 places, 1262 transitions, 255950 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:36,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:36,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:36,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:41,959 INFO L129 PetriNetUnfolder]: 245/4083 cut-off events. [2021-08-13 02:45:41,959 INFO L130 PetriNetUnfolder]: For 2504832/2707854 co-relation queries the response was YES. [2021-08-13 02:45:42,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135213 conditions, 4083 events. 245/4083 cut-off events. For 2504832/2707854 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62438 event pairs, 0 based on Foata normal form. 75/4036 useless extension candidates. Maximal degree in co-relation 109195. Up to 780 conditions per place. [2021-08-13 02:45:42,099 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 738 selfloop transitions, 241 changer transitions 262/1261 dead transitions. [2021-08-13 02:45:42,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 773 places, 1261 transitions, 258226 flow [2021-08-13 02:45:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:42,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:42,100 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:42,100 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:42,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:42,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:42,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:42,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:42,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:42,101 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:42,101 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 729 predicate places. [2021-08-13 02:45:42,101 INFO L482 AbstractCegarLoop]: Abstraction has has 773 places, 1261 transitions, 258226 flow [2021-08-13 02:45:42,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:42,102 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:42,102 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:42,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-08-13 02:45:42,102 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:42,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:42,102 INFO L82 PathProgramCache]: Analyzing trace with hash 953923129, now seen corresponding path program 104 times [2021-08-13 02:45:42,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:42,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715298552] [2021-08-13 02:45:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:42,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:42,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:42,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:42,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:42,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:42,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:42,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:45:42,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:45:42,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:42,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:42,144 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:42,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:42,161 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:42,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:42,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:42,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715298552] [2021-08-13 02:45:42,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715298552] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:42,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:42,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:42,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515075293] [2021-08-13 02:45:42,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:42,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:42,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:42,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:42,178 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:42,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 1261 transitions, 258226 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:42,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:42,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:42,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:47,538 INFO L129 PetriNetUnfolder]: 245/4080 cut-off events. [2021-08-13 02:45:47,538 INFO L130 PetriNetUnfolder]: For 2827285/3088156 co-relation queries the response was YES. [2021-08-13 02:45:47,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136346 conditions, 4080 events. 245/4080 cut-off events. For 2827285/3088156 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62330 event pairs, 0 based on Foata normal form. 88/4045 useless extension candidates. Maximal degree in co-relation 110193. Up to 779 conditions per place. [2021-08-13 02:45:47,623 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 736 selfloop transitions, 239 changer transitions 265/1260 dead transitions. [2021-08-13 02:45:47,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 1260 transitions, 260498 flow [2021-08-13 02:45:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:47,637 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:47,637 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:47,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:47,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:47,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:47,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:47,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:47,638 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:47,638 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 736 predicate places. [2021-08-13 02:45:47,638 INFO L482 AbstractCegarLoop]: Abstraction has has 780 places, 1260 transitions, 260498 flow [2021-08-13 02:45:47,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:47,638 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:47,638 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:47,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-08-13 02:45:47,638 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:47,639 INFO L82 PathProgramCache]: Analyzing trace with hash -750195291, now seen corresponding path program 105 times [2021-08-13 02:45:47,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:47,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989144363] [2021-08-13 02:45:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:47,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:47,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:47,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:47,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:47,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:47,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:47,656 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:45:47,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:45:47,665 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:47,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:47,677 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:47,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:47,694 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:47,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:47,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:47,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989144363] [2021-08-13 02:45:47,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989144363] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:47,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:47,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:47,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554274501] [2021-08-13 02:45:47,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:47,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:47,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:47,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:47,712 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:47,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 1260 transitions, 260498 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:47,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:47,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:47,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:53,084 INFO L129 PetriNetUnfolder]: 245/4081 cut-off events. [2021-08-13 02:45:53,084 INFO L130 PetriNetUnfolder]: For 2597863/2807337 co-relation queries the response was YES. [2021-08-13 02:45:53,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137485 conditions, 4081 events. 245/4081 cut-off events. For 2597863/2807337 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62354 event pairs, 0 based on Foata normal form. 73/4032 useless extension candidates. Maximal degree in co-relation 111199. Up to 778 conditions per place. [2021-08-13 02:45:53,228 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 733 selfloop transitions, 241 changer transitions 265/1259 dead transitions. [2021-08-13 02:45:53,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 787 places, 1259 transitions, 262766 flow [2021-08-13 02:45:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:53,229 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:53,229 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:53,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:53,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:53,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:53,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:53,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:53,230 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:53,230 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 743 predicate places. [2021-08-13 02:45:53,230 INFO L482 AbstractCegarLoop]: Abstraction has has 787 places, 1259 transitions, 262766 flow [2021-08-13 02:45:53,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:53,230 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:53,230 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:53,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-08-13 02:45:53,230 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:53,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:53,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1349013381, now seen corresponding path program 106 times [2021-08-13 02:45:53,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:53,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626288560] [2021-08-13 02:45:53,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:53,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:53,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:53,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:53,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:53,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:53,279 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:45:53,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:45:53,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:45:53,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:45:53,302 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:53,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:53,320 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:53,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:53,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:53,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626288560] [2021-08-13 02:45:53,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626288560] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:53,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:53,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:53,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623446300] [2021-08-13 02:45:53,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:53,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:53,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:53,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:53,338 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:53,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 787 places, 1259 transitions, 262766 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:53,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:53,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:53,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:45:58,454 INFO L129 PetriNetUnfolder]: 245/4080 cut-off events. [2021-08-13 02:45:58,454 INFO L130 PetriNetUnfolder]: For 2647653/2860359 co-relation queries the response was YES. [2021-08-13 02:45:58,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138618 conditions, 4080 events. 245/4080 cut-off events. For 2647653/2860359 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62325 event pairs, 0 based on Foata normal form. 73/4031 useless extension candidates. Maximal degree in co-relation 112201. Up to 777 conditions per place. [2021-08-13 02:45:58,535 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 736 selfloop transitions, 237 changer transitions 265/1258 dead transitions. [2021-08-13 02:45:58,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 794 places, 1258 transitions, 265030 flow [2021-08-13 02:45:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:45:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:45:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:45:58,536 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:45:58,536 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:45:58,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:45:58,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:45:58,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:45:58,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:58,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:58,537 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:58,537 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 750 predicate places. [2021-08-13 02:45:58,537 INFO L482 AbstractCegarLoop]: Abstraction has has 794 places, 1258 transitions, 265030 flow [2021-08-13 02:45:58,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:58,538 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:45:58,538 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:45:58,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-08-13 02:45:58,538 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:45:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:45:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1390549345, now seen corresponding path program 107 times [2021-08-13 02:45:58,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:45:58,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690978572] [2021-08-13 02:45:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:45:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:45:58,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:58,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:45:58,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:58,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:45:58,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:58,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:45:58,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:45:58,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:45:58,563 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:45:58,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:45:58,576 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:45:58,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:45:58,593 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:45:58,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:45:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:45:58,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:45:58,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690978572] [2021-08-13 02:45:58,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690978572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:45:58,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:45:58,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:45:58,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792143841] [2021-08-13 02:45:58,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:45:58,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:45:58,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:45:58,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:45:58,610 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:45:58,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 794 places, 1258 transitions, 265030 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:45:58,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:45:58,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:45:58,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:03,841 INFO L129 PetriNetUnfolder]: 245/4077 cut-off events. [2021-08-13 02:46:03,842 INFO L130 PetriNetUnfolder]: For 2997226/3270559 co-relation queries the response was YES. [2021-08-13 02:46:03,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139745 conditions, 4077 events. 245/4077 cut-off events. For 2997226/3270559 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62364 event pairs, 0 based on Foata normal form. 88/4042 useless extension candidates. Maximal degree in co-relation 113199. Up to 776 conditions per place. [2021-08-13 02:46:03,924 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 735 selfloop transitions, 232 changer transitions 270/1257 dead transitions. [2021-08-13 02:46:03,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 1257 transitions, 267290 flow [2021-08-13 02:46:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:03,925 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:03,925 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:03,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:03,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:03,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:03,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:03,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:03,926 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:03,926 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 757 predicate places. [2021-08-13 02:46:03,926 INFO L482 AbstractCegarLoop]: Abstraction has has 801 places, 1257 transitions, 267290 flow [2021-08-13 02:46:03,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:03,926 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:03,926 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:03,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-08-13 02:46:03,926 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:03,926 INFO L82 PathProgramCache]: Analyzing trace with hash -964170957, now seen corresponding path program 108 times [2021-08-13 02:46:03,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:03,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403762402] [2021-08-13 02:46:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:03,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:03,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:03,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:03,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:03,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:03,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:03,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:03,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:03,951 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:46:03,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:46:03,973 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:03,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:03,990 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:03,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:04,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:04,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403762402] [2021-08-13 02:46:04,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403762402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:04,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:04,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:04,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836914154] [2021-08-13 02:46:04,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:04,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:04,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:04,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:04,007 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:04,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 1257 transitions, 267290 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:04,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:04,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:04,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:08,571 INFO L129 PetriNetUnfolder]: 245/4078 cut-off events. [2021-08-13 02:46:08,571 INFO L130 PetriNetUnfolder]: For 2754292/2973474 co-relation queries the response was YES. [2021-08-13 02:46:08,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140878 conditions, 4078 events. 245/4078 cut-off events. For 2754292/2973474 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62283 event pairs, 0 based on Foata normal form. 75/4031 useless extension candidates. Maximal degree in co-relation 114205. Up to 775 conditions per place. [2021-08-13 02:46:08,654 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 733 selfloop transitions, 231 changer transitions 272/1256 dead transitions. [2021-08-13 02:46:08,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 1256 transitions, 269546 flow [2021-08-13 02:46:08,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:08,655 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:08,655 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:08,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:08,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:08,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:08,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:08,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:08,656 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:08,656 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 764 predicate places. [2021-08-13 02:46:08,656 INFO L482 AbstractCegarLoop]: Abstraction has has 808 places, 1256 transitions, 269546 flow [2021-08-13 02:46:08,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:08,657 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:08,657 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:08,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-08-13 02:46:08,657 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:08,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1933658721, now seen corresponding path program 109 times [2021-08-13 02:46:08,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:08,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594160910] [2021-08-13 02:46:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:08,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:08,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:08,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:08,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:08,674 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:46:08,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:46:08,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:46:08,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:46:08,695 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:08,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:08,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:08,827 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-08-13 02:46:08,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:08,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:08,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594160910] [2021-08-13 02:46:08,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594160910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:08,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:08,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:08,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896035766] [2021-08-13 02:46:08,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:08,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:08,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:08,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:08,857 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:08,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 808 places, 1256 transitions, 269546 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:08,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:08,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:08,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:13,458 INFO L129 PetriNetUnfolder]: 245/4076 cut-off events. [2021-08-13 02:46:13,458 INFO L130 PetriNetUnfolder]: For 2805464/3027878 co-relation queries the response was YES. [2021-08-13 02:46:13,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142003 conditions, 4076 events. 245/4076 cut-off events. For 2805464/3027878 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62270 event pairs, 0 based on Foata normal form. 75/4029 useless extension candidates. Maximal degree in co-relation 115205. Up to 774 conditions per place. [2021-08-13 02:46:13,542 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 725 selfloop transitions, 236 changer transitions 274/1255 dead transitions. [2021-08-13 02:46:13,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 815 places, 1255 transitions, 271798 flow [2021-08-13 02:46:13,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:13,543 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:13,543 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:13,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:13,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:13,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:13,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:13,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:13,544 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:13,544 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 771 predicate places. [2021-08-13 02:46:13,544 INFO L482 AbstractCegarLoop]: Abstraction has has 815 places, 1255 transitions, 271798 flow [2021-08-13 02:46:13,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:13,544 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:13,544 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:13,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-08-13 02:46:13,544 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:13,545 INFO L82 PathProgramCache]: Analyzing trace with hash 116405423, now seen corresponding path program 110 times [2021-08-13 02:46:13,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:13,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009315746] [2021-08-13 02:46:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:13,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:13,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:13,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:13,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:13,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:13,561 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:46:13,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:46:13,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:46:13,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:46:13,583 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:13,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:13,600 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:13,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:13,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:13,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009315746] [2021-08-13 02:46:13,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009315746] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:13,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:13,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:13,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914644935] [2021-08-13 02:46:13,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:13,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:13,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:13,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:13,617 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:13,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 815 places, 1255 transitions, 271798 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:13,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:13,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:13,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:18,086 INFO L129 PetriNetUnfolder]: 245/4074 cut-off events. [2021-08-13 02:46:18,086 INFO L130 PetriNetUnfolder]: For 3131483/3415549 co-relation queries the response was YES. [2021-08-13 02:46:18,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143126 conditions, 4074 events. 245/4074 cut-off events. For 3131483/3415549 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62226 event pairs, 0 based on Foata normal form. 86/4037 useless extension candidates. Maximal degree in co-relation 116205. Up to 773 conditions per place. [2021-08-13 02:46:18,168 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 728 selfloop transitions, 232 changer transitions 274/1254 dead transitions. [2021-08-13 02:46:18,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 822 places, 1254 transitions, 274046 flow [2021-08-13 02:46:18,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:18,181 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:18,181 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:18,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:18,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:18,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:18,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:18,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:18,182 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:18,182 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 778 predicate places. [2021-08-13 02:46:18,182 INFO L482 AbstractCegarLoop]: Abstraction has has 822 places, 1254 transitions, 274046 flow [2021-08-13 02:46:18,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:18,182 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:18,182 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:18,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-08-13 02:46:18,182 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:18,182 INFO L82 PathProgramCache]: Analyzing trace with hash -396891409, now seen corresponding path program 111 times [2021-08-13 02:46:18,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:18,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991615985] [2021-08-13 02:46:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:18,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:18,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:18,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:18,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:18,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:18,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:18,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:18,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:18,207 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:46:18,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:46:18,229 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:18,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:18,245 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:18,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:18,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:18,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991615985] [2021-08-13 02:46:18,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991615985] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:18,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:18,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:18,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462674202] [2021-08-13 02:46:18,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:18,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:18,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:18,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:18,262 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:18,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 822 places, 1254 transitions, 274046 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:18,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:18,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:18,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:23,169 INFO L129 PetriNetUnfolder]: 245/4073 cut-off events. [2021-08-13 02:46:23,169 INFO L130 PetriNetUnfolder]: For 2902961/3131827 co-relation queries the response was YES. [2021-08-13 02:46:23,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144249 conditions, 4073 events. 245/4073 cut-off events. For 2902961/3131827 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62185 event pairs, 0 based on Foata normal form. 73/4023 useless extension candidates. Maximal degree in co-relation 117207. Up to 772 conditions per place. [2021-08-13 02:46:23,260 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 721 selfloop transitions, 236 changer transitions 276/1253 dead transitions. [2021-08-13 02:46:23,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 829 places, 1253 transitions, 276290 flow [2021-08-13 02:46:23,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:23,261 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:23,261 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:23,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:23,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:23,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:23,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:23,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:23,262 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:23,262 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 785 predicate places. [2021-08-13 02:46:23,262 INFO L482 AbstractCegarLoop]: Abstraction has has 829 places, 1253 transitions, 276290 flow [2021-08-13 02:46:23,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:23,262 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:23,262 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:23,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-08-13 02:46:23,262 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:23,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1856890861, now seen corresponding path program 112 times [2021-08-13 02:46:23,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:23,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813268954] [2021-08-13 02:46:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:23,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:23,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:23,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:23,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:23,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:23,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:23,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:23,288 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:46:23,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:46:23,311 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:23,328 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:23,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:23,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:23,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813268954] [2021-08-13 02:46:23,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813268954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:23,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:23,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:23,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671228817] [2021-08-13 02:46:23,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:23,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:23,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:23,346 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:23,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 1253 transitions, 276290 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:23,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:23,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:23,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:28,034 INFO L129 PetriNetUnfolder]: 245/4072 cut-off events. [2021-08-13 02:46:28,034 INFO L130 PetriNetUnfolder]: For 3088647/3335610 co-relation queries the response was YES. [2021-08-13 02:46:28,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145370 conditions, 4072 events. 245/4072 cut-off events. For 3088647/3335610 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62194 event pairs, 0 based on Foata normal form. 74/4023 useless extension candidates. Maximal degree in co-relation 118209. Up to 771 conditions per place. [2021-08-13 02:46:28,118 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 725 selfloop transitions, 228 changer transitions 279/1252 dead transitions. [2021-08-13 02:46:28,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 836 places, 1252 transitions, 278530 flow [2021-08-13 02:46:28,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:28,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:28,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:28,119 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:28,119 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:28,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:28,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:28,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:28,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:28,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:28,120 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:28,120 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 792 predicate places. [2021-08-13 02:46:28,120 INFO L482 AbstractCegarLoop]: Abstraction has has 836 places, 1252 transitions, 278530 flow [2021-08-13 02:46:28,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:28,120 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:28,120 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:28,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-08-13 02:46:28,120 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1807760683, now seen corresponding path program 113 times [2021-08-13 02:46:28,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:28,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162750800] [2021-08-13 02:46:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:28,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:28,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:28,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:28,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:28,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:28,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:28,137 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:28,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:28,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 02:46:28,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 02:46:28,167 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:28,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:28,197 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:28,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:28,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:28,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162750800] [2021-08-13 02:46:28,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162750800] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:28,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:28,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:28,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129777344] [2021-08-13 02:46:28,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:28,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:28,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:28,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:28,215 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:28,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 836 places, 1252 transitions, 278530 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:28,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:28,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:28,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:33,156 INFO L129 PetriNetUnfolder]: 245/4071 cut-off events. [2021-08-13 02:46:33,156 INFO L130 PetriNetUnfolder]: For 3600479/3932767 co-relation queries the response was YES. [2021-08-13 02:46:33,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146489 conditions, 4071 events. 245/4071 cut-off events. For 3600479/3932767 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62159 event pairs, 0 based on Foata normal form. 94/4042 useless extension candidates. Maximal degree in co-relation 119211. Up to 770 conditions per place. [2021-08-13 02:46:33,241 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 717 selfloop transitions, 232 changer transitions 282/1251 dead transitions. [2021-08-13 02:46:33,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 843 places, 1251 transitions, 280766 flow [2021-08-13 02:46:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:33,242 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:33,242 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:33,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:33,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:33,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:33,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:33,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:33,242 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:33,243 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 799 predicate places. [2021-08-13 02:46:33,243 INFO L482 AbstractCegarLoop]: Abstraction has has 843 places, 1251 transitions, 280766 flow [2021-08-13 02:46:33,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:33,243 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:33,243 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:33,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-08-13 02:46:33,243 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:33,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:33,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2120226469, now seen corresponding path program 114 times [2021-08-13 02:46:33,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:33,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673324988] [2021-08-13 02:46:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:33,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:33,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:33,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:33,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:33,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:33,270 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:46:33,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:46:33,282 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:33,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:33,299 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:33,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:33,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:33,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673324988] [2021-08-13 02:46:33,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673324988] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:33,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:33,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:33,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646106530] [2021-08-13 02:46:33,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:33,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:33,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:33,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:33,317 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:33,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 1251 transitions, 280766 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:33,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:33,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:33,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:38,189 INFO L129 PetriNetUnfolder]: 245/4070 cut-off events. [2021-08-13 02:46:38,190 INFO L130 PetriNetUnfolder]: For 3411605/3714016 co-relation queries the response was YES. [2021-08-13 02:46:38,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147606 conditions, 4070 events. 245/4070 cut-off events. For 3411605/3714016 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62156 event pairs, 0 based on Foata normal form. 88/4035 useless extension candidates. Maximal degree in co-relation 120213. Up to 769 conditions per place. [2021-08-13 02:46:38,274 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 718 selfloop transitions, 230 changer transitions 282/1250 dead transitions. [2021-08-13 02:46:38,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 850 places, 1250 transitions, 282998 flow [2021-08-13 02:46:38,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:38,275 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:38,275 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:38,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:38,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:38,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:38,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:38,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:38,276 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:38,276 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 806 predicate places. [2021-08-13 02:46:38,276 INFO L482 AbstractCegarLoop]: Abstraction has has 850 places, 1250 transitions, 282998 flow [2021-08-13 02:46:38,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:38,276 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:38,276 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:38,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-08-13 02:46:38,276 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:38,276 INFO L82 PathProgramCache]: Analyzing trace with hash 885175891, now seen corresponding path program 115 times [2021-08-13 02:46:38,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:38,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911263664] [2021-08-13 02:46:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:38,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:38,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:38,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:38,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:38,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:38,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:38,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:38,302 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:46:38,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:46:38,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:38,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:38,342 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:38,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:38,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911263664] [2021-08-13 02:46:38,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911263664] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:38,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:38,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:38,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888580833] [2021-08-13 02:46:38,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:38,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:38,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:38,359 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:38,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 850 places, 1250 transitions, 282998 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:38,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:38,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:38,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:43,501 INFO L129 PetriNetUnfolder]: 245/4071 cut-off events. [2021-08-13 02:46:43,501 INFO L130 PetriNetUnfolder]: For 3159063/3402655 co-relation queries the response was YES. [2021-08-13 02:46:43,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148725 conditions, 4071 events. 245/4071 cut-off events. For 3159063/3402655 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62222 event pairs, 0 based on Foata normal form. 75/4024 useless extension candidates. Maximal degree in co-relation 121219. Up to 768 conditions per place. [2021-08-13 02:46:43,588 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 718 selfloop transitions, 227 changer transitions 284/1249 dead transitions. [2021-08-13 02:46:43,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 1249 transitions, 285226 flow [2021-08-13 02:46:43,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:43,589 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:43,589 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:43,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:43,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:43,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:43,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:43,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:43,590 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:43,590 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 813 predicate places. [2021-08-13 02:46:43,590 INFO L482 AbstractCegarLoop]: Abstraction has has 857 places, 1249 transitions, 285226 flow [2021-08-13 02:46:43,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:43,590 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:43,590 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:43,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-08-13 02:46:43,590 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:43,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:43,590 INFO L82 PathProgramCache]: Analyzing trace with hash 75473739, now seen corresponding path program 116 times [2021-08-13 02:46:43,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:43,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229078191] [2021-08-13 02:46:43,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:43,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:43,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:43,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:43,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:43,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:43,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:43,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:43,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:46:43,616 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:46:43,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:46:43,628 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:43,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:43,645 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:43,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:43,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:43,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229078191] [2021-08-13 02:46:43,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229078191] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:43,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:43,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:43,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588593661] [2021-08-13 02:46:43,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:43,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:43,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:43,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:43,662 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:43,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 857 places, 1249 transitions, 285226 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:43,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:43,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:43,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:49,281 INFO L129 PetriNetUnfolder]: 245/4068 cut-off events. [2021-08-13 02:46:49,282 INFO L130 PetriNetUnfolder]: For 3534481/3845200 co-relation queries the response was YES. [2021-08-13 02:46:49,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149834 conditions, 4068 events. 245/4068 cut-off events. For 3534481/3845200 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62160 event pairs, 0 based on Foata normal form. 88/4033 useless extension candidates. Maximal degree in co-relation 122217. Up to 767 conditions per place. [2021-08-13 02:46:49,366 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 713 selfloop transitions, 229 changer transitions 286/1248 dead transitions. [2021-08-13 02:46:49,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 864 places, 1248 transitions, 287450 flow [2021-08-13 02:46:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:49,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:49,367 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:49,367 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:49,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:49,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:49,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:49,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:49,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:49,368 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:49,368 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 820 predicate places. [2021-08-13 02:46:49,368 INFO L482 AbstractCegarLoop]: Abstraction has has 864 places, 1248 transitions, 287450 flow [2021-08-13 02:46:49,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:49,368 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:49,368 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:49,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-08-13 02:46:49,368 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:49,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1736564777, now seen corresponding path program 117 times [2021-08-13 02:46:49,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:49,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860945661] [2021-08-13 02:46:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:49,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:49,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:49,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:49,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:49,515 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:46:49,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:46:49,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:46:49,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:46:49,537 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:49,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:49,555 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:49,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:49,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:49,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860945661] [2021-08-13 02:46:49,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860945661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:49,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:49,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:49,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131488555] [2021-08-13 02:46:49,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:49,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:49,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:49,572 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:49,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 864 places, 1248 transitions, 287450 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:49,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:49,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:49,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:46:54,920 INFO L129 PetriNetUnfolder]: 245/4067 cut-off events. [2021-08-13 02:46:54,920 INFO L130 PetriNetUnfolder]: For 3859977/4208713 co-relation queries the response was YES. [2021-08-13 02:46:54,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150945 conditions, 4067 events. 245/4067 cut-off events. For 3859977/4208713 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62067 event pairs, 0 based on Foata normal form. 94/4038 useless extension candidates. Maximal degree in co-relation 123219. Up to 766 conditions per place. [2021-08-13 02:46:55,008 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 713 selfloop transitions, 228 changer transitions 286/1247 dead transitions. [2021-08-13 02:46:55,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 871 places, 1247 transitions, 289670 flow [2021-08-13 02:46:55,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:46:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:46:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:46:55,009 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:46:55,009 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:46:55,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:46:55,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:46:55,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:46:55,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:55,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:55,010 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:55,010 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 827 predicate places. [2021-08-13 02:46:55,010 INFO L482 AbstractCegarLoop]: Abstraction has has 871 places, 1247 transitions, 289670 flow [2021-08-13 02:46:55,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:55,010 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:46:55,010 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:46:55,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-08-13 02:46:55,010 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:46:55,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:46:55,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1764588813, now seen corresponding path program 118 times [2021-08-13 02:46:55,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:46:55,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673101933] [2021-08-13 02:46:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:46:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:46:55,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:55,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:46:55,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:55,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:46:55,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:46:55,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:46:55,039 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:46:55,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:46:55,048 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:46:55,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:46:55,061 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:46:55,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:46:55,078 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:46:55,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:46:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:46:55,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:46:55,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673101933] [2021-08-13 02:46:55,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673101933] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:46:55,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:46:55,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:46:55,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976817815] [2021-08-13 02:46:55,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:46:55,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:46:55,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:46:55,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:46:55,095 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:46:55,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 871 places, 1247 transitions, 289670 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:46:55,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:46:55,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:46:55,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:00,578 INFO L129 PetriNetUnfolder]: 245/4066 cut-off events. [2021-08-13 02:47:00,579 INFO L130 PetriNetUnfolder]: For 4300844/4721433 co-relation queries the response was YES. [2021-08-13 02:47:00,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152054 conditions, 4066 events. 245/4066 cut-off events. For 4300844/4721433 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62108 event pairs, 0 based on Foata normal form. 107/4050 useless extension candidates. Maximal degree in co-relation 124221. Up to 765 conditions per place. [2021-08-13 02:47:00,740 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 710 selfloop transitions, 225 changer transitions 291/1246 dead transitions. [2021-08-13 02:47:00,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 878 places, 1246 transitions, 291886 flow [2021-08-13 02:47:00,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:00,741 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:00,742 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:00,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:00,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:00,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:00,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:00,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:00,742 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:00,742 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 834 predicate places. [2021-08-13 02:47:00,742 INFO L482 AbstractCegarLoop]: Abstraction has has 878 places, 1246 transitions, 291886 flow [2021-08-13 02:47:00,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:00,743 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:00,743 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:00,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-08-13 02:47:00,743 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:00,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:00,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1623841915, now seen corresponding path program 119 times [2021-08-13 02:47:00,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:00,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125318881] [2021-08-13 02:47:00,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:00,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:00,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:00,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:00,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:00,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:00,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:00,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:00,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:47:00,768 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:47:00,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:47:00,781 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:00,801 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:00,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:00,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:00,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125318881] [2021-08-13 02:47:00,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125318881] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:00,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:00,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:00,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963245212] [2021-08-13 02:47:00,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:00,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:00,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:00,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:00,818 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:00,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 878 places, 1246 transitions, 291886 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:00,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:00,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:00,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:06,341 INFO L129 PetriNetUnfolder]: 245/4065 cut-off events. [2021-08-13 02:47:06,341 INFO L130 PetriNetUnfolder]: For 3722440/4045621 co-relation queries the response was YES. [2021-08-13 02:47:06,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153161 conditions, 4065 events. 245/4065 cut-off events. For 3722440/4045621 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62157 event pairs, 0 based on Foata normal form. 88/4030 useless extension candidates. Maximal degree in co-relation 125223. Up to 764 conditions per place. [2021-08-13 02:47:06,430 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 710 selfloop transitions, 220 changer transitions 295/1245 dead transitions. [2021-08-13 02:47:06,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 1245 transitions, 294098 flow [2021-08-13 02:47:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:06,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:06,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:06,431 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:06,431 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:06,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:06,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:06,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:06,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:06,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:06,431 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:06,432 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 841 predicate places. [2021-08-13 02:47:06,432 INFO L482 AbstractCegarLoop]: Abstraction has has 885 places, 1245 transitions, 294098 flow [2021-08-13 02:47:06,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:06,432 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:06,432 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:06,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-08-13 02:47:06,432 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash -439525133, now seen corresponding path program 120 times [2021-08-13 02:47:06,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:06,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956159838] [2021-08-13 02:47:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:06,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:06,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:06,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:06,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:06,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:06,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:06,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:06,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:47:06,457 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:47:06,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:47:06,472 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:06,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:06,489 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:06,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:06,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956159838] [2021-08-13 02:47:06,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956159838] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:06,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:06,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:06,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308895924] [2021-08-13 02:47:06,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:06,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:06,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:06,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:06,506 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:06,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 1245 transitions, 294098 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:06,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:06,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:06,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:12,569 INFO L129 PetriNetUnfolder]: 245/4065 cut-off events. [2021-08-13 02:47:12,569 INFO L130 PetriNetUnfolder]: For 3395427/3653393 co-relation queries the response was YES. [2021-08-13 02:47:12,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154268 conditions, 4065 events. 245/4065 cut-off events. For 3395427/3653393 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62101 event pairs, 0 based on Foata normal form. 75/4018 useless extension candidates. Maximal degree in co-relation 126227. Up to 763 conditions per place. [2021-08-13 02:47:12,661 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 703 selfloop transitions, 221 changer transitions 300/1244 dead transitions. [2021-08-13 02:47:12,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 892 places, 1244 transitions, 296306 flow [2021-08-13 02:47:12,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:12,662 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:12,662 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:12,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:12,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:12,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:12,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:12,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:12,663 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:12,663 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 848 predicate places. [2021-08-13 02:47:12,663 INFO L482 AbstractCegarLoop]: Abstraction has has 892 places, 1244 transitions, 296306 flow [2021-08-13 02:47:12,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:12,663 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:12,663 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:12,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-08-13 02:47:12,663 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:12,663 INFO L82 PathProgramCache]: Analyzing trace with hash -326187475, now seen corresponding path program 121 times [2021-08-13 02:47:12,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:12,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562922354] [2021-08-13 02:47:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:12,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:12,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:12,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:12,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:12,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:12,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:12,680 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:47:12,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:47:12,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:47:12,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:47:12,702 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:12,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:12,720 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:12,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:12,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:12,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562922354] [2021-08-13 02:47:12,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562922354] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:12,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:12,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:12,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265270034] [2021-08-13 02:47:12,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:12,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:12,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:12,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:12,737 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:12,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 892 places, 1244 transitions, 296306 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:12,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:12,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:12,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:18,898 INFO L129 PetriNetUnfolder]: 245/4063 cut-off events. [2021-08-13 02:47:18,899 INFO L130 PetriNetUnfolder]: For 3850141/4181630 co-relation queries the response was YES. [2021-08-13 02:47:18,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155369 conditions, 4063 events. 245/4063 cut-off events. For 3850141/4181630 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62064 event pairs, 0 based on Foata normal form. 88/4028 useless extension candidates. Maximal degree in co-relation 127227. Up to 762 conditions per place. [2021-08-13 02:47:18,987 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 704 selfloop transitions, 219 changer transitions 300/1243 dead transitions. [2021-08-13 02:47:18,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 899 places, 1243 transitions, 298510 flow [2021-08-13 02:47:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:18,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:18,989 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:18,989 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:18,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:18,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:18,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:18,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:18,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:18,989 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:18,990 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 855 predicate places. [2021-08-13 02:47:18,990 INFO L482 AbstractCegarLoop]: Abstraction has has 899 places, 1243 transitions, 298510 flow [2021-08-13 02:47:18,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:18,990 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:18,990 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:18,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-08-13 02:47:18,990 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:18,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:18,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1279660209, now seen corresponding path program 122 times [2021-08-13 02:47:18,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:18,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117405346] [2021-08-13 02:47:18,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:18,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:18,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:18,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:18,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:19,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:19,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:19,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:47:19,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:47:19,016 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:47:19,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:47:19,028 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:19,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:19,045 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:19,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:19,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:19,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117405346] [2021-08-13 02:47:19,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117405346] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:19,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:19,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:19,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516236604] [2021-08-13 02:47:19,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:19,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:19,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:19,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:19,062 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:19,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 899 places, 1243 transitions, 298510 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:19,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:19,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:19,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:25,496 INFO L129 PetriNetUnfolder]: 245/4062 cut-off events. [2021-08-13 02:47:25,496 INFO L130 PetriNetUnfolder]: For 3705924/3987752 co-relation queries the response was YES. [2021-08-13 02:47:25,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156470 conditions, 4062 events. 245/4062 cut-off events. For 3705924/3987752 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62074 event pairs, 0 based on Foata normal form. 76/4015 useless extension candidates. Maximal degree in co-relation 128229. Up to 761 conditions per place. [2021-08-13 02:47:25,589 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 697 selfloop transitions, 221 changer transitions 304/1242 dead transitions. [2021-08-13 02:47:25,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 906 places, 1242 transitions, 300710 flow [2021-08-13 02:47:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:25,590 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:25,590 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:25,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:25,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:25,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:25,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:25,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:25,591 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:25,591 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 862 predicate places. [2021-08-13 02:47:25,591 INFO L482 AbstractCegarLoop]: Abstraction has has 906 places, 1242 transitions, 300710 flow [2021-08-13 02:47:25,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:25,591 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:25,591 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:25,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-08-13 02:47:25,591 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:25,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:25,591 INFO L82 PathProgramCache]: Analyzing trace with hash 454148205, now seen corresponding path program 123 times [2021-08-13 02:47:25,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:25,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879599627] [2021-08-13 02:47:25,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:25,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:25,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:25,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:25,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:25,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:25,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:25,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:25,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 02:47:25,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:47:25,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:47:25,626 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:25,642 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:25,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:25,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:25,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879599627] [2021-08-13 02:47:25,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879599627] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:25,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:25,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:25,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774910241] [2021-08-13 02:47:25,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:25,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:25,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:25,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:25,658 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:25,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 906 places, 1242 transitions, 300710 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:25,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:25,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:25,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:33,986 INFO L129 PetriNetUnfolder]: 245/4062 cut-off events. [2021-08-13 02:47:33,986 INFO L130 PetriNetUnfolder]: For 4264045/4637453 co-relation queries the response was YES. [2021-08-13 02:47:34,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157571 conditions, 4062 events. 245/4062 cut-off events. For 4264045/4637453 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62007 event pairs, 0 based on Foata normal form. 94/4034 useless extension candidates. Maximal degree in co-relation 129233. Up to 760 conditions per place. [2021-08-13 02:47:34,095 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 692 selfloop transitions, 221 changer transitions 308/1241 dead transitions. [2021-08-13 02:47:34,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 913 places, 1241 transitions, 302906 flow [2021-08-13 02:47:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:34,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:34,096 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:34,096 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:34,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:34,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:34,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:34,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:34,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:34,097 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:34,097 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 869 predicate places. [2021-08-13 02:47:34,097 INFO L482 AbstractCegarLoop]: Abstraction has has 913 places, 1241 transitions, 302906 flow [2021-08-13 02:47:34,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:34,097 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:34,097 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:34,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-08-13 02:47:34,098 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:34,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:34,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1692920549, now seen corresponding path program 124 times [2021-08-13 02:47:34,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:34,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870272041] [2021-08-13 02:47:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:34,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:34,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:34,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:34,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:34,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:34,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:34,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:47:34,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:47:34,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:47:34,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:47:34,138 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:34,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:34,155 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:34,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:34,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:34,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870272041] [2021-08-13 02:47:34,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870272041] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:34,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:34,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:34,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264820787] [2021-08-13 02:47:34,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:34,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:34,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:34,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:34,172 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:34,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 913 places, 1241 transitions, 302906 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:34,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:34,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:34,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:43,004 INFO L129 PetriNetUnfolder]: 245/4060 cut-off events. [2021-08-13 02:47:43,004 INFO L130 PetriNetUnfolder]: For 4756526/5207319 co-relation queries the response was YES. [2021-08-13 02:47:43,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158666 conditions, 4060 events. 245/4060 cut-off events. For 4756526/5207319 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 62032 event pairs, 0 based on Foata normal form. 107/4044 useless extension candidates. Maximal degree in co-relation 130233. Up to 759 conditions per place. [2021-08-13 02:47:43,099 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 695 selfloop transitions, 217 changer transitions 308/1240 dead transitions. [2021-08-13 02:47:43,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 920 places, 1240 transitions, 305098 flow [2021-08-13 02:47:43,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:43,100 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:43,100 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:43,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:43,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:43,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:43,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:43,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:43,101 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:43,101 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 876 predicate places. [2021-08-13 02:47:43,101 INFO L482 AbstractCegarLoop]: Abstraction has has 920 places, 1240 transitions, 305098 flow [2021-08-13 02:47:43,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:43,101 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:43,101 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:43,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-08-13 02:47:43,101 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:43,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1581476359, now seen corresponding path program 125 times [2021-08-13 02:47:43,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:43,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071895198] [2021-08-13 02:47:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:43,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:43,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:43,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:43,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:43,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:43,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 02:47:43,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:47:43,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:47:43,127 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:47:43,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:47:43,238 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-08-13 02:47:43,239 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:43,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:43,258 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:43,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:43,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:43,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071895198] [2021-08-13 02:47:43,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071895198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:43,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:43,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:43,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144497909] [2021-08-13 02:47:43,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:43,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:43,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:43,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:43,277 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:43,277 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 920 places, 1240 transitions, 305098 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:43,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:43,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:43,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:47:52,000 INFO L129 PetriNetUnfolder]: 245/4059 cut-off events. [2021-08-13 02:47:52,001 INFO L130 PetriNetUnfolder]: For 4111183/4459288 co-relation queries the response was YES. [2021-08-13 02:47:52,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159761 conditions, 4059 events. 245/4059 cut-off events. For 4111183/4459288 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 61987 event pairs, 0 based on Foata normal form. 88/4024 useless extension candidates. Maximal degree in co-relation 131235. Up to 758 conditions per place. [2021-08-13 02:47:52,092 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 688 selfloop transitions, 205 changer transitions 326/1239 dead transitions. [2021-08-13 02:47:52,093 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 927 places, 1239 transitions, 307286 flow [2021-08-13 02:47:52,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:47:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:47:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:47:52,093 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:47:52,094 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:47:52,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:47:52,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:47:52,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:47:52,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:52,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:52,094 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:52,095 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 883 predicate places. [2021-08-13 02:47:52,095 INFO L482 AbstractCegarLoop]: Abstraction has has 927 places, 1239 transitions, 307286 flow [2021-08-13 02:47:52,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:52,095 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:47:52,095 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:47:52,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-08-13 02:47:52,095 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:47:52,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:47:52,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1630977845, now seen corresponding path program 126 times [2021-08-13 02:47:52,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:47:52,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828672836] [2021-08-13 02:47:52,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:47:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:47:52,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:47:52,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:47:52,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:47:52,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:47:52,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:47:52,115 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:47:52,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:47:52,124 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:47:52,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:47:52,136 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:47:52,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:47:52,153 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:47:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:47:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:47:52,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:47:52,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828672836] [2021-08-13 02:47:52,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828672836] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:47:52,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:47:52,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:47:52,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335313528] [2021-08-13 02:47:52,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:47:52,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:47:52,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:47:52,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:47:52,170 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:47:52,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 1239 transitions, 307286 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:47:52,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:47:52,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:47:52,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:04,159 INFO L129 PetriNetUnfolder]: 245/4058 cut-off events. [2021-08-13 02:48:04,160 INFO L130 PetriNetUnfolder]: For 3737216/4014574 co-relation queries the response was YES. [2021-08-13 02:48:04,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160854 conditions, 4058 events. 245/4058 cut-off events. For 3737216/4014574 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 61932 event pairs, 0 based on Foata normal form. 150/4085 useless extension candidates. Maximal degree in co-relation 132237. Up to 757 conditions per place. [2021-08-13 02:48:04,257 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 672 selfloop transitions, 220 changer transitions 326/1238 dead transitions. [2021-08-13 02:48:04,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 934 places, 1238 transitions, 309470 flow [2021-08-13 02:48:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:04,258 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:04,258 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:04,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:04,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:04,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:04,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:04,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:04,259 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:04,259 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 890 predicate places. [2021-08-13 02:48:04,259 INFO L482 AbstractCegarLoop]: Abstraction has has 934 places, 1238 transitions, 309470 flow [2021-08-13 02:48:04,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:04,259 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:04,259 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:04,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-08-13 02:48:04,259 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:04,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1809037355, now seen corresponding path program 127 times [2021-08-13 02:48:04,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:04,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947368962] [2021-08-13 02:48:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:04,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:04,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:04,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:04,270 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:48:04,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:48:04,281 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:48:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:48:04,294 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:48:04,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:48:04,315 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:48:04,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:48:04,332 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:04,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:04,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:04,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947368962] [2021-08-13 02:48:04,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947368962] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:04,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:04,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:04,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167825491] [2021-08-13 02:48:04,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:04,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:04,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:04,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:04,350 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:04,350 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 934 places, 1238 transitions, 309470 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:04,350 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:04,350 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:04,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:15,336 INFO L129 PetriNetUnfolder]: 266/4410 cut-off events. [2021-08-13 02:48:15,336 INFO L130 PetriNetUnfolder]: For 3189349/3356733 co-relation queries the response was YES. [2021-08-13 02:48:15,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176784 conditions, 4410 events. 266/4410 cut-off events. For 3189349/3356733 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68510 event pairs, 0 based on Foata normal form. 138/4410 useless extension candidates. Maximal degree in co-relation 144279. Up to 817 conditions per place. [2021-08-13 02:48:15,446 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 719 selfloop transitions, 282 changer transitions 328/1349 dead transitions. [2021-08-13 02:48:15,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 1349 transitions, 340322 flow [2021-08-13 02:48:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:15,447 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:15,447 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:15,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:15,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:15,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:15,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:15,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:15,448 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:15,448 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 897 predicate places. [2021-08-13 02:48:15,448 INFO L482 AbstractCegarLoop]: Abstraction has has 941 places, 1349 transitions, 340322 flow [2021-08-13 02:48:15,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:15,448 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:15,448 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:15,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-08-13 02:48:15,448 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:15,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1285775279, now seen corresponding path program 128 times [2021-08-13 02:48:15,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:15,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412012027] [2021-08-13 02:48:15,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:15,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:15,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:15,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:15,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:15,460 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:48:15,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:48:15,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:48:15,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:48:15,476 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:48:15,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:48:15,490 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:48:15,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:48:15,509 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:15,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:15,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:15,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412012027] [2021-08-13 02:48:15,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412012027] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:15,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:15,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:15,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705007382] [2021-08-13 02:48:15,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:15,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:15,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:15,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:15,526 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:15,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 941 places, 1349 transitions, 340322 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:15,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:15,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:15,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:25,502 INFO L129 PetriNetUnfolder]: 266/4411 cut-off events. [2021-08-13 02:48:25,502 INFO L130 PetriNetUnfolder]: For 2913960/3025777 co-relation queries the response was YES. [2021-08-13 02:48:25,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177989 conditions, 4411 events. 266/4411 cut-off events. For 2913960/3025777 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68431 event pairs, 0 based on Foata normal form. 184/4458 useless extension candidates. Maximal degree in co-relation 145368. Up to 816 conditions per place. [2021-08-13 02:48:25,609 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 767 selfloop transitions, 233 changer transitions 328/1348 dead transitions. [2021-08-13 02:48:25,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 1348 transitions, 342722 flow [2021-08-13 02:48:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:25,610 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:25,610 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:25,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:25,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:25,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:25,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:25,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:25,611 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:25,611 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 904 predicate places. [2021-08-13 02:48:25,611 INFO L482 AbstractCegarLoop]: Abstraction has has 948 places, 1348 transitions, 342722 flow [2021-08-13 02:48:25,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:25,611 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:25,611 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:25,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-08-13 02:48:25,611 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:25,612 INFO L82 PathProgramCache]: Analyzing trace with hash 556553645, now seen corresponding path program 129 times [2021-08-13 02:48:25,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:25,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426419814] [2021-08-13 02:48:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:25,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:25,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:25,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:25,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:25,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:48:25,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:48:25,629 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:48:25,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:48:25,638 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:48:25,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:48:25,651 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:48:25,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:48:25,670 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:25,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:25,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:25,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:25,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426419814] [2021-08-13 02:48:25,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426419814] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:25,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:25,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:25,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015089568] [2021-08-13 02:48:25,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:25,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:25,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:25,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:25,687 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:25,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 1348 transitions, 342722 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:25,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:25,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:25,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:35,405 INFO L129 PetriNetUnfolder]: 266/4408 cut-off events. [2021-08-13 02:48:35,405 INFO L130 PetriNetUnfolder]: For 3583841/3805529 co-relation queries the response was YES. [2021-08-13 02:48:35,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179184 conditions, 4408 events. 266/4408 cut-off events. For 3583841/3805529 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68398 event pairs, 0 based on Foata normal form. 262/4532 useless extension candidates. Maximal degree in co-relation 146449. Up to 815 conditions per place. [2021-08-13 02:48:35,511 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 762 selfloop transitions, 237 changer transitions 328/1347 dead transitions. [2021-08-13 02:48:35,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 955 places, 1347 transitions, 345118 flow [2021-08-13 02:48:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:35,512 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:35,512 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:35,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:35,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:35,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:35,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:35,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:35,512 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:35,513 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 911 predicate places. [2021-08-13 02:48:35,513 INFO L482 AbstractCegarLoop]: Abstraction has has 955 places, 1347 transitions, 345118 flow [2021-08-13 02:48:35,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:35,513 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:35,513 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:35,513 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-08-13 02:48:35,513 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:35,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:35,513 INFO L82 PathProgramCache]: Analyzing trace with hash -365845899, now seen corresponding path program 130 times [2021-08-13 02:48:35,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:35,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254538067] [2021-08-13 02:48:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:35,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:35,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:35,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:35,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:35,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:48:35,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:48:35,530 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:48:35,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:48:35,539 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:48:35,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:48:35,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:48:35,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:48:35,567 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:35,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:35,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:35,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254538067] [2021-08-13 02:48:35,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254538067] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:35,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:35,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:35,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868155775] [2021-08-13 02:48:35,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:35,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:35,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:35,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:35,584 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:35,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 1347 transitions, 345118 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:35,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:35,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:35,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:45,540 INFO L129 PetriNetUnfolder]: 266/4407 cut-off events. [2021-08-13 02:48:45,540 INFO L130 PetriNetUnfolder]: For 2984225/3098609 co-relation queries the response was YES. [2021-08-13 02:48:45,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180381 conditions, 4407 events. 266/4407 cut-off events. For 2984225/3098609 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68445 event pairs, 0 based on Foata normal form. 175/4445 useless extension candidates. Maximal degree in co-relation 147534. Up to 814 conditions per place. [2021-08-13 02:48:45,649 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 760 selfloop transitions, 238 changer transitions 328/1346 dead transitions. [2021-08-13 02:48:45,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 1346 transitions, 347510 flow [2021-08-13 02:48:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:45,650 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:45,650 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:45,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:45,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:45,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:45,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:45,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:45,651 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:45,651 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 918 predicate places. [2021-08-13 02:48:45,651 INFO L482 AbstractCegarLoop]: Abstraction has has 962 places, 1346 transitions, 347510 flow [2021-08-13 02:48:45,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:45,651 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:45,651 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:45,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-08-13 02:48:45,651 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:45,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2073501823, now seen corresponding path program 131 times [2021-08-13 02:48:45,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:45,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713003165] [2021-08-13 02:48:45,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:45,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:45,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:45,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:45,663 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:48:45,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:48:45,674 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:48:45,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:48:45,683 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:48:45,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:48:45,696 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:48:45,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:48:45,715 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:45,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:45,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:45,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713003165] [2021-08-13 02:48:45,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713003165] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:45,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:45,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:45,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038355829] [2021-08-13 02:48:45,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:45,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:45,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:45,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:45,733 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:45,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 1346 transitions, 347510 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:45,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:45,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:45,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:48:55,111 INFO L129 PetriNetUnfolder]: 266/4406 cut-off events. [2021-08-13 02:48:55,111 INFO L130 PetriNetUnfolder]: For 3175376/3320344 co-relation queries the response was YES. [2021-08-13 02:48:55,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181576 conditions, 4406 events. 266/4406 cut-off events. For 3175376/3320344 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68399 event pairs, 0 based on Foata normal form. 181/4449 useless extension candidates. Maximal degree in co-relation 148619. Up to 813 conditions per place. [2021-08-13 02:48:55,219 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 733 selfloop transitions, 264 changer transitions 328/1345 dead transitions. [2021-08-13 02:48:55,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 1345 transitions, 349898 flow [2021-08-13 02:48:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:48:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:48:55,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:48:55,220 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:48:55,220 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:48:55,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:48:55,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:48:55,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:48:55,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:55,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:55,221 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:55,221 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 925 predicate places. [2021-08-13 02:48:55,221 INFO L482 AbstractCegarLoop]: Abstraction has has 969 places, 1345 transitions, 349898 flow [2021-08-13 02:48:55,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:55,221 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:48:55,221 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:48:55,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-08-13 02:48:55,222 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:48:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:48:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash 445666649, now seen corresponding path program 132 times [2021-08-13 02:48:55,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:48:55,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274750193] [2021-08-13 02:48:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:48:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:48:55,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:55,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:48:55,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:48:55,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:48:55,233 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:48:55,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:48:55,239 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:48:55,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:48:55,249 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:48:55,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:48:55,261 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:48:55,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:48:55,385 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:48:55,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:48:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:48:55,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:48:55,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274750193] [2021-08-13 02:48:55,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274750193] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:48:55,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:48:55,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:48:55,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409097319] [2021-08-13 02:48:55,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:48:55,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:48:55,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:48:55,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:48:55,402 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:48:55,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 969 places, 1345 transitions, 349898 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:48:55,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:48:55,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:48:55,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:05,140 INFO L129 PetriNetUnfolder]: 266/4405 cut-off events. [2021-08-13 02:49:05,140 INFO L130 PetriNetUnfolder]: For 3474182/3659591 co-relation queries the response was YES. [2021-08-13 02:49:05,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182769 conditions, 4405 events. 266/4405 cut-off events. For 3474182/3659591 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68415 event pairs, 0 based on Foata normal form. 226/4494 useless extension candidates. Maximal degree in co-relation 149704. Up to 812 conditions per place. [2021-08-13 02:49:05,349 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 759 selfloop transitions, 237 changer transitions 328/1344 dead transitions. [2021-08-13 02:49:05,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 976 places, 1344 transitions, 352282 flow [2021-08-13 02:49:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:05,350 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:05,350 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:05,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:05,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:05,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:05,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:05,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:05,350 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:05,351 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 932 predicate places. [2021-08-13 02:49:05,351 INFO L482 AbstractCegarLoop]: Abstraction has has 976 places, 1344 transitions, 352282 flow [2021-08-13 02:49:05,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:05,351 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:05,351 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:05,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-08-13 02:49:05,351 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:05,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:05,351 INFO L82 PathProgramCache]: Analyzing trace with hash 73354257, now seen corresponding path program 133 times [2021-08-13 02:49:05,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:05,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82734125] [2021-08-13 02:49:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:05,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:05,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:05,362 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:49:05,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:49:05,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:05,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:05,378 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:49:05,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:49:05,396 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:49:05,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:49:05,413 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:05,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:05,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:05,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82734125] [2021-08-13 02:49:05,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82734125] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:05,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:05,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:05,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197089994] [2021-08-13 02:49:05,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:05,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:05,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:05,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:05,430 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:05,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 976 places, 1344 transitions, 352282 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:05,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:05,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:05,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:15,163 INFO L129 PetriNetUnfolder]: 266/4404 cut-off events. [2021-08-13 02:49:15,164 INFO L130 PetriNetUnfolder]: For 3786605/4020125 co-relation queries the response was YES. [2021-08-13 02:49:15,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183960 conditions, 4404 events. 266/4404 cut-off events. For 3786605/4020125 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68359 event pairs, 0 based on Foata normal form. 204/4470 useless extension candidates. Maximal degree in co-relation 150789. Up to 811 conditions per place. [2021-08-13 02:49:15,273 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 758 selfloop transitions, 237 changer transitions 328/1343 dead transitions. [2021-08-13 02:49:15,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 983 places, 1343 transitions, 354662 flow [2021-08-13 02:49:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:15,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:15,274 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:15,274 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:15,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:15,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:15,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:15,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:15,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:15,275 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:15,275 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 939 predicate places. [2021-08-13 02:49:15,275 INFO L482 AbstractCegarLoop]: Abstraction has has 983 places, 1343 transitions, 354662 flow [2021-08-13 02:49:15,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:15,275 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:15,276 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:15,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-08-13 02:49:15,276 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:15,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:15,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1773655111, now seen corresponding path program 134 times [2021-08-13 02:49:15,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:15,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284055339] [2021-08-13 02:49:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:15,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:15,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:49:15,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:49:15,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:15,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:15,302 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 02:49:15,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 02:49:15,314 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:49:15,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:49:15,331 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:15,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:15,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:15,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:15,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284055339] [2021-08-13 02:49:15,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284055339] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:15,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:15,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:15,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609521591] [2021-08-13 02:49:15,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:15,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:15,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:15,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:15,348 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:15,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 1343 transitions, 354662 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:15,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:15,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:15,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:25,210 INFO L129 PetriNetUnfolder]: 266/4404 cut-off events. [2021-08-13 02:49:25,211 INFO L130 PetriNetUnfolder]: For 3140456/3260092 co-relation queries the response was YES. [2021-08-13 02:49:25,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185151 conditions, 4404 events. 266/4404 cut-off events. For 3140456/3260092 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68334 event pairs, 0 based on Foata normal form. 132/4400 useless extension candidates. Maximal degree in co-relation 151876. Up to 810 conditions per place. [2021-08-13 02:49:25,318 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 756 selfloop transitions, 238 changer transitions 328/1342 dead transitions. [2021-08-13 02:49:25,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 990 places, 1342 transitions, 357038 flow [2021-08-13 02:49:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:25,318 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:25,319 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:25,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:25,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:25,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:25,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:25,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:25,319 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:25,319 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 946 predicate places. [2021-08-13 02:49:25,319 INFO L482 AbstractCegarLoop]: Abstraction has has 990 places, 1342 transitions, 357038 flow [2021-08-13 02:49:25,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:25,320 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:25,320 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:25,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-08-13 02:49:25,320 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:25,320 INFO L82 PathProgramCache]: Analyzing trace with hash 953151353, now seen corresponding path program 135 times [2021-08-13 02:49:25,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:25,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637071657] [2021-08-13 02:49:25,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:25,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:25,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:25,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:25,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:25,331 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:49:25,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:49:25,337 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:25,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:25,346 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:49:25,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:49:25,366 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:49:25,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:49:25,383 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:25,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:25,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:25,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637071657] [2021-08-13 02:49:25,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637071657] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:25,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:25,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:25,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171749829] [2021-08-13 02:49:25,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:25,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:25,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:25,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:25,399 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:25,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 990 places, 1342 transitions, 357038 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:25,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:25,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:25,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:35,175 INFO L129 PetriNetUnfolder]: 266/4404 cut-off events. [2021-08-13 02:49:35,176 INFO L130 PetriNetUnfolder]: For 3180995/3302601 co-relation queries the response was YES. [2021-08-13 02:49:35,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186340 conditions, 4404 events. 266/4404 cut-off events. For 3180995/3302601 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68355 event pairs, 0 based on Foata normal form. 132/4400 useless extension candidates. Maximal degree in co-relation 152963. Up to 809 conditions per place. [2021-08-13 02:49:35,298 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 755 selfloop transitions, 238 changer transitions 328/1341 dead transitions. [2021-08-13 02:49:35,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 997 places, 1341 transitions, 359410 flow [2021-08-13 02:49:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:35,299 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:35,299 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:35,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:35,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:35,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:35,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:35,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:35,300 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:35,300 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 953 predicate places. [2021-08-13 02:49:35,300 INFO L482 AbstractCegarLoop]: Abstraction has has 997 places, 1341 transitions, 359410 flow [2021-08-13 02:49:35,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:35,300 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:35,300 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:35,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-08-13 02:49:35,300 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:35,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:35,300 INFO L82 PathProgramCache]: Analyzing trace with hash -406326911, now seen corresponding path program 136 times [2021-08-13 02:49:35,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:35,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105725718] [2021-08-13 02:49:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:35,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:35,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:35,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:35,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:35,313 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:49:35,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:49:35,320 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:35,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:35,329 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:49:35,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:49:35,342 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:49:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:49:35,359 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:35,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:35,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:35,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105725718] [2021-08-13 02:49:35,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105725718] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:35,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:35,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:35,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901472265] [2021-08-13 02:49:35,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:35,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:35,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:35,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:35,376 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:35,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 997 places, 1341 transitions, 359410 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:35,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:35,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:35,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:45,491 INFO L129 PetriNetUnfolder]: 266/4401 cut-off events. [2021-08-13 02:49:45,491 INFO L130 PetriNetUnfolder]: For 3937073/4179727 co-relation queries the response was YES. [2021-08-13 02:49:45,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187521 conditions, 4401 events. 266/4401 cut-off events. For 3937073/4179727 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68291 event pairs, 0 based on Foata normal form. 198/4461 useless extension candidates. Maximal degree in co-relation 154044. Up to 808 conditions per place. [2021-08-13 02:49:45,601 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 759 selfloop transitions, 233 changer transitions 328/1340 dead transitions. [2021-08-13 02:49:45,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1004 places, 1340 transitions, 361778 flow [2021-08-13 02:49:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:45,602 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:45,602 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:45,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:45,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:45,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:45,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:45,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:45,603 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:45,603 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 960 predicate places. [2021-08-13 02:49:45,603 INFO L482 AbstractCegarLoop]: Abstraction has has 1004 places, 1340 transitions, 361778 flow [2021-08-13 02:49:45,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:45,603 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:45,603 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:45,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-08-13 02:49:45,603 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:45,604 INFO L82 PathProgramCache]: Analyzing trace with hash -228372397, now seen corresponding path program 137 times [2021-08-13 02:49:45,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:45,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266531333] [2021-08-13 02:49:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:45,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:45,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:45,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:45,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:45,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:49:45,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:49:45,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:45,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:45,630 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:49:45,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:49:45,643 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:49:45,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:49:45,660 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:45,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:45,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:45,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266531333] [2021-08-13 02:49:45,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266531333] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:45,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:45,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:45,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224813205] [2021-08-13 02:49:45,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:45,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:45,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:45,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:45,677 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:45,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1004 places, 1340 transitions, 361778 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:45,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:45,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:45,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:49:56,882 INFO L129 PetriNetUnfolder]: 266/4402 cut-off events. [2021-08-13 02:49:56,882 INFO L130 PetriNetUnfolder]: For 3253520/3379010 co-relation queries the response was YES. [2021-08-13 02:49:56,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188708 conditions, 4402 events. 266/4402 cut-off events. For 3253520/3379010 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68264 event pairs, 0 based on Foata normal form. 132/4398 useless extension candidates. Maximal degree in co-relation 155133. Up to 807 conditions per place. [2021-08-13 02:49:56,996 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 758 selfloop transitions, 233 changer transitions 328/1339 dead transitions. [2021-08-13 02:49:56,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1011 places, 1339 transitions, 364142 flow [2021-08-13 02:49:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:49:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:49:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:49:56,997 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:49:56,997 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:49:56,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:49:56,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:49:56,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:49:56,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:56,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:56,997 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:56,997 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 967 predicate places. [2021-08-13 02:49:56,997 INFO L482 AbstractCegarLoop]: Abstraction has has 1011 places, 1339 transitions, 364142 flow [2021-08-13 02:49:56,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:56,998 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:49:56,998 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:49:56,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-08-13 02:49:56,998 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:49:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:49:56,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1299113811, now seen corresponding path program 138 times [2021-08-13 02:49:56,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:49:56,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082763068] [2021-08-13 02:49:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:49:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:49:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:57,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:49:57,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:49:57,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:49:57,012 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:49:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:49:57,024 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:49:57,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:49:57,038 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:49:57,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:49:57,058 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:49:57,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:49:57,075 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:49:57,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:49:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:49:57,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:49:57,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082763068] [2021-08-13 02:49:57,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082763068] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:49:57,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:49:57,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:49:57,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381712038] [2021-08-13 02:49:57,092 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:49:57,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:49:57,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:49:57,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:49:57,093 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:49:57,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1011 places, 1339 transitions, 364142 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:49:57,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:49:57,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:49:57,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:08,875 INFO L129 PetriNetUnfolder]: 266/4401 cut-off events. [2021-08-13 02:50:08,875 INFO L130 PetriNetUnfolder]: For 3294788/3422244 co-relation queries the response was YES. [2021-08-13 02:50:08,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189889 conditions, 4401 events. 266/4401 cut-off events. For 3294788/3422244 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68305 event pairs, 0 based on Foata normal form. 132/4397 useless extension candidates. Maximal degree in co-relation 156218. Up to 806 conditions per place. [2021-08-13 02:50:08,989 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 709 selfloop transitions, 278 changer transitions 331/1338 dead transitions. [2021-08-13 02:50:08,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1338 transitions, 366502 flow [2021-08-13 02:50:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:08,990 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:08,990 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:08,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:08,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:08,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:08,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:08,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:08,991 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:08,991 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 974 predicate places. [2021-08-13 02:50:08,991 INFO L482 AbstractCegarLoop]: Abstraction has has 1018 places, 1338 transitions, 366502 flow [2021-08-13 02:50:08,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:08,991 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:08,991 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:08,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-08-13 02:50:08,991 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:08,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:08,991 INFO L82 PathProgramCache]: Analyzing trace with hash -155031171, now seen corresponding path program 139 times [2021-08-13 02:50:08,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:08,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663956954] [2021-08-13 02:50:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:09,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:09,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:09,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:09,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:09,004 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:09,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:09,015 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:50:09,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:50:09,029 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:50:09,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:50:09,042 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:50:09,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:50:09,059 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:09,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:09,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:09,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663956954] [2021-08-13 02:50:09,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663956954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:09,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:09,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:09,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64530404] [2021-08-13 02:50:09,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:09,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:09,076 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:09,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1338 transitions, 366502 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:09,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:09,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:09,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:19,072 INFO L129 PetriNetUnfolder]: 266/4398 cut-off events. [2021-08-13 02:50:19,073 INFO L130 PetriNetUnfolder]: For 4095091/4344058 co-relation queries the response was YES. [2021-08-13 02:50:19,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191064 conditions, 4398 events. 266/4398 cut-off events. For 4095091/4344058 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68297 event pairs, 0 based on Foata normal form. 191/4451 useless extension candidates. Maximal degree in co-relation 157299. Up to 805 conditions per place. [2021-08-13 02:50:19,185 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 714 selfloop transitions, 272 changer transitions 331/1337 dead transitions. [2021-08-13 02:50:19,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1337 transitions, 368858 flow [2021-08-13 02:50:19,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:19,189 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:19,189 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:19,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:19,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:19,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:19,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:19,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:19,190 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:19,190 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 981 predicate places. [2021-08-13 02:50:19,190 INFO L482 AbstractCegarLoop]: Abstraction has has 1025 places, 1337 transitions, 368858 flow [2021-08-13 02:50:19,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:19,190 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:19,190 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:19,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-08-13 02:50:19,190 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:19,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:19,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1732056355, now seen corresponding path program 140 times [2021-08-13 02:50:19,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:19,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73747628] [2021-08-13 02:50:19,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:19,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:19,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:19,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:19,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:19,202 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:50:19,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:50:19,208 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:19,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:19,217 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 02:50:19,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 02:50:19,239 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:50:19,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:50:19,256 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:19,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:19,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:19,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73747628] [2021-08-13 02:50:19,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73747628] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:19,272 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:19,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:19,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340063982] [2021-08-13 02:50:19,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:19,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:19,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:19,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:19,273 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:19,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1337 transitions, 368858 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:19,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:19,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:19,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:28,946 INFO L129 PetriNetUnfolder]: 266/4399 cut-off events. [2021-08-13 02:50:28,946 INFO L130 PetriNetUnfolder]: For 3385800/3514526 co-relation queries the response was YES. [2021-08-13 02:50:29,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192245 conditions, 4399 events. 266/4399 cut-off events. For 3385800/3514526 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68219 event pairs, 0 based on Foata normal form. 132/4395 useless extension candidates. Maximal degree in co-relation 158388. Up to 804 conditions per place. [2021-08-13 02:50:29,062 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 749 selfloop transitions, 236 changer transitions 331/1336 dead transitions. [2021-08-13 02:50:29,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1336 transitions, 371210 flow [2021-08-13 02:50:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:29,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:29,063 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:29,063 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:29,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:29,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:29,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:29,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:29,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:29,063 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:29,064 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 988 predicate places. [2021-08-13 02:50:29,064 INFO L482 AbstractCegarLoop]: Abstraction has has 1032 places, 1336 transitions, 371210 flow [2021-08-13 02:50:29,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:29,064 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:29,064 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:29,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-08-13 02:50:29,064 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:29,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1031595147, now seen corresponding path program 141 times [2021-08-13 02:50:29,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:29,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052037853] [2021-08-13 02:50:29,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:29,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:29,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:29,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:29,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:29,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:29,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:29,087 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:50:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:50:29,097 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-08-13 02:50:29,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-08-13 02:50:29,110 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:50:29,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:50:29,129 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:29,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:29,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:29,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052037853] [2021-08-13 02:50:29,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052037853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:29,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:29,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:29,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101776786] [2021-08-13 02:50:29,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:29,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:29,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:29,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:29,146 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:29,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1032 places, 1336 transitions, 371210 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:29,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:29,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:29,146 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:38,770 INFO L129 PetriNetUnfolder]: 266/4397 cut-off events. [2021-08-13 02:50:38,770 INFO L130 PetriNetUnfolder]: For 3427347/3557565 co-relation queries the response was YES. [2021-08-13 02:50:38,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193418 conditions, 4397 events. 266/4397 cut-off events. For 3427347/3557565 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68209 event pairs, 0 based on Foata normal form. 167/4428 useless extension candidates. Maximal degree in co-relation 159471. Up to 803 conditions per place. [2021-08-13 02:50:38,885 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 730 selfloop transitions, 254 changer transitions 331/1335 dead transitions. [2021-08-13 02:50:38,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1335 transitions, 373558 flow [2021-08-13 02:50:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:38,886 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:38,886 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:38,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:38,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:38,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:38,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:38,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:38,887 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:38,887 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 995 predicate places. [2021-08-13 02:50:38,887 INFO L482 AbstractCegarLoop]: Abstraction has has 1039 places, 1335 transitions, 373558 flow [2021-08-13 02:50:38,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:38,887 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:38,887 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:38,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-08-13 02:50:38,888 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:38,888 INFO L82 PathProgramCache]: Analyzing trace with hash -149210115, now seen corresponding path program 142 times [2021-08-13 02:50:38,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:38,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394746206] [2021-08-13 02:50:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:38,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:38,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:38,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:38,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:38,901 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:50:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:50:38,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:38,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:38,917 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:50:38,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:50:38,931 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:50:38,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:50:38,948 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:38,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:38,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:38,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394746206] [2021-08-13 02:50:38,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394746206] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:38,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:38,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:38,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338907543] [2021-08-13 02:50:38,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:38,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:38,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:38,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:38,966 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:38,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 1335 transitions, 373558 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:38,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:38,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:38,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:48,946 INFO L129 PetriNetUnfolder]: 266/4395 cut-off events. [2021-08-13 02:50:48,946 INFO L130 PetriNetUnfolder]: For 4257367/4514747 co-relation queries the response was YES. [2021-08-13 02:50:49,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194589 conditions, 4395 events. 266/4395 cut-off events. For 4257367/4514747 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68252 event pairs, 0 based on Foata normal form. 198/4455 useless extension candidates. Maximal degree in co-relation 160554. Up to 802 conditions per place. [2021-08-13 02:50:49,060 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 730 selfloop transitions, 253 changer transitions 331/1334 dead transitions. [2021-08-13 02:50:49,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 1334 transitions, 375902 flow [2021-08-13 02:50:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:49,061 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:49,061 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:49,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:49,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:49,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:49,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:49,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:49,062 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:49,062 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 1002 predicate places. [2021-08-13 02:50:49,062 INFO L482 AbstractCegarLoop]: Abstraction has has 1046 places, 1334 transitions, 375902 flow [2021-08-13 02:50:49,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:49,062 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:49,062 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:49,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-08-13 02:50:49,062 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:49,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1523920181, now seen corresponding path program 143 times [2021-08-13 02:50:49,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:49,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342671870] [2021-08-13 02:50:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:49,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:49,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:49,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:49,077 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-13 02:50:49,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-13 02:50:49,089 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:49,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:49,101 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:50:49,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:50:49,114 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:50:49,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:50:49,132 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:49,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:49,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:49,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:49,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342671870] [2021-08-13 02:50:49,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342671870] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:49,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:49,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:49,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341519153] [2021-08-13 02:50:49,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:49,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:49,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:49,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:49,150 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:49,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1334 transitions, 375902 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:49,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:49,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:49,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:50:59,001 INFO L129 PetriNetUnfolder]: 266/4394 cut-off events. [2021-08-13 02:50:59,002 INFO L130 PetriNetUnfolder]: For 4000828/4212205 co-relation queries the response was YES. [2021-08-13 02:50:59,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195760 conditions, 4394 events. 266/4394 cut-off events. For 4000828/4212205 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 68079 event pairs, 0 based on Foata normal form. 170/4427 useless extension candidates. Maximal degree in co-relation 161639. Up to 801 conditions per place. [2021-08-13 02:50:59,116 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 723 selfloop transitions, 259 changer transitions 331/1333 dead transitions. [2021-08-13 02:50:59,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1053 places, 1333 transitions, 378242 flow [2021-08-13 02:50:59,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:50:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:50:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:50:59,117 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:50:59,117 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:50:59,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:50:59,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:50:59,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:50:59,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:59,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:59,117 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:59,118 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 1009 predicate places. [2021-08-13 02:50:59,118 INFO L482 AbstractCegarLoop]: Abstraction has has 1053 places, 1333 transitions, 378242 flow [2021-08-13 02:50:59,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:59,118 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:50:59,118 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:50:59,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-08-13 02:50:59,118 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:50:59,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:50:59,118 INFO L82 PathProgramCache]: Analyzing trace with hash 329859853, now seen corresponding path program 144 times [2021-08-13 02:50:59,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:50:59,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174012040] [2021-08-13 02:50:59,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:50:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:50:59,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:59,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:50:59,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:50:59,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:50:59,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:50:59,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:50:59,141 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:50:59,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:50:59,155 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 02:50:59,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 02:50:59,173 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:50:59,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:50:59,190 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:50:59,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:50:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:50:59,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:50:59,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174012040] [2021-08-13 02:50:59,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174012040] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:50:59,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:50:59,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:50:59,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9876430] [2021-08-13 02:50:59,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:50:59,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:50:59,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:50:59,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:50:59,207 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:50:59,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1053 places, 1333 transitions, 378242 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:50:59,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:50:59,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:50:59,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 02:51:09,188 INFO L129 PetriNetUnfolder]: 267/4429 cut-off events. [2021-08-13 02:51:09,188 INFO L130 PetriNetUnfolder]: For 3766191/3933059 co-relation queries the response was YES. [2021-08-13 02:51:09,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198150 conditions, 4429 events. 267/4429 cut-off events. For 3766191/3933059 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 68804 event pairs, 0 based on Foata normal form. 130/4421 useless extension candidates. Maximal degree in co-relation 163501. Up to 802 conditions per place. [2021-08-13 02:51:09,301 INFO L132 encePairwiseOnDemand]: 56/63 looper letters, 707 selfloop transitions, 280 changer transitions 333/1340 dead transitions. [2021-08-13 02:51:09,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1060 places, 1340 transitions, 382898 flow [2021-08-13 02:51:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:51:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-08-13 02:51:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 467 transitions. [2021-08-13 02:51:09,302 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9265873015873016 [2021-08-13 02:51:09,302 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 467 transitions. [2021-08-13 02:51:09,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 467 transitions. [2021-08-13 02:51:09,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 02:51:09,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 467 transitions. [2021-08-13 02:51:09,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 58.375) internal successors, (467), 8 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:51:09,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:51:09,303 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:51:09,303 INFO L348 CegarLoopForPetriNet]: 44 programPoint places, 1016 predicate places. [2021-08-13 02:51:09,303 INFO L482 AbstractCegarLoop]: Abstraction has has 1060 places, 1340 transitions, 382898 flow [2021-08-13 02:51:09,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:51:09,303 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 02:51:09,303 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 02:51:09,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-08-13 02:51:09,303 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-08-13 02:51:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 02:51:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash 203040785, now seen corresponding path program 145 times [2021-08-13 02:51:09,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 02:51:09,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356638571] [2021-08-13 02:51:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 02:51:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 02:51:09,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:51:09,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 02:51:09,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 02:51:09,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 02:51:09,317 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 02:51:09,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 02:51:09,329 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-08-13 02:51:09,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 02:51:09,339 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 02:51:09,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 02:51:09,352 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-08-13 02:51:09,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-08-13 02:51:09,370 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-08-13 02:51:09,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 02:51:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 02:51:09,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 02:51:09,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356638571] [2021-08-13 02:51:09,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356638571] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 02:51:09,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 02:51:09,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 02:51:09,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514280796] [2021-08-13 02:51:09,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-13 02:51:09,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 02:51:09,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-13 02:51:09,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-08-13 02:51:09,387 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 63 [2021-08-13 02:51:09,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1060 places, 1340 transitions, 382898 flow. Second operand has 8 states, 8 states have (on average 55.875) internal successors, (447), 8 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 02:51:09,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 02:51:09,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 63 [2021-08-13 02:51:09,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-13 02:51:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-13 02:51:11,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-08-13 02:51:11,333 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-13 02:51:11,334 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-13 02:51:11,336 WARN L188 ceAbstractionStarter]: Timeout [2021-08-13 02:51:11,336 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.08 02:51:11 BasicIcfg [2021-08-13 02:51:11,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-13 02:51:11,336 INFO L168 Benchmark]: Toolchain (without parser) took 521864.96 ms. Allocated memory was 198.2 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 179.4 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 5.9 GB. Max. memory is 8.0 GB. [2021-08-13 02:51:11,336 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 198.2 MB. Free memory was 180.4 MB in the beginning and 180.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 02:51:11,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.07 ms. Allocated memory is still 198.2 MB. Free memory was 179.2 MB in the beginning and 177.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-13 02:51:11,336 INFO L168 Benchmark]: Boogie Preprocessor took 10.23 ms. Allocated memory is still 198.2 MB. Free memory was 177.7 MB in the beginning and 176.9 MB in the end (delta: 840.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-13 02:51:11,336 INFO L168 Benchmark]: RCFGBuilder took 191.36 ms. Allocated memory is still 198.2 MB. Free memory was 176.9 MB in the beginning and 166.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-08-13 02:51:11,336 INFO L168 Benchmark]: TraceAbstraction took 521639.26 ms. Allocated memory was 198.2 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 166.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 5.9 GB. Max. memory is 8.0 GB. [2021-08-13 02:51:11,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 198.2 MB. Free memory was 180.4 MB in the beginning and 180.3 MB in the end (delta: 132.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.07 ms. Allocated memory is still 198.2 MB. Free memory was 179.2 MB in the beginning and 177.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.23 ms. Allocated memory is still 198.2 MB. Free memory was 177.7 MB in the beginning and 176.9 MB in the end (delta: 840.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 191.36 ms. Allocated memory is still 198.2 MB. Free memory was 176.9 MB in the beginning and 166.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 521639.26 ms. Allocated memory was 198.2 MB in the beginning and 7.3 GB in the end (delta: 7.1 GB). Free memory was 166.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 5.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (8states, 55/63 universal loopers) in iteration 149,while PetriNetUnfolder was constructing finite prefix that currently has 43839 conditions, 448 events (47/447 cut-off events. For 1221207/1357295 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 6719 event pairs, 0 based on Foata normal form. 166/1101 useless extension candidates. Maximal degree in co-relation 43673. Up to 190 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 58 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 21.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 521521.1ms, OverallIterations: 149, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 506554.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 114.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2622 SDtfs, 3701 SDslu, 2315 SDs, 0 SdLazy, 4419 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3041.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1172 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1019 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 14457.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=382898occurred in iteration=148, InterpolantAutomatonStates: 1164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 69.7ms SsaConstructionTime, 143.5ms SatisfiabilityAnalysisTime, 13957.5ms InterpolantComputationTime, 3725 NumberOfCodeBlocks, 3725 NumberOfCodeBlocksAsserted, 149 NumberOfCheckSat, 3576 ConstructedInterpolants, 0 QuantifiedInterpolants, 98398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 149 InterpolantComputations, 149 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown