/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 23:12:37,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 23:12:37,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 23:12:37,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-12 23:12:37,861 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.epf [2021-08-12 23:12:37,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 23:12:37,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 23:12:37,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 23:12:37,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 23:12:37,900 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 23:12:37,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 23:12:37,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 23:12:37,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 23:12:37,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 23:12:37,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 23:12:37,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 23:12:37,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 23:12:37,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 23:12:37,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 23:12:37,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 23:12:37,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 23:12:37,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 23:12:37,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 23:12:37,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 23:12:37,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 23:12:37,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 23:12:37,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 23:12:37,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 23:12:37,905 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 23:12:37,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 23:12:37,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 23:12:38,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 23:12:38,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 23:12:38,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 23:12:38,302 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-12 23:12:38,303 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-12 23:12:38,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2021-08-12 23:12:38,304 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2021-08-12 23:12:38,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 23:12:38,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-12 23:12:38,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 23:12:38,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 23:12:38,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 23:12:38,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 23:12:38,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 23:12:38,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 23:12:38,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 23:12:38,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/1) ... [2021-08-12 23:12:38,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 23:12:38,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 23:12:38,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 23:12:38,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 23:12:38,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (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 [2021-08-12 23:12:38,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-12 23:12:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-12 23:12:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-12 23:12:38,474 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-12 23:12:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-12 23:12:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-12 23:12:38,474 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-12 23:12:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 23:12:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 23:12:38,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-12 23:12:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-12 23:12:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-12 23:12:38,481 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-12 23:12:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-12 23:12:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-12 23:12:38,483 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 23:12:38,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 23:12:38,644 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-12 23:12:38,646 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 11:12:38 BoogieIcfgContainer [2021-08-12 23:12:38,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 23:12:38,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 23:12:38,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 23:12:38,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 23:12:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 11:12:38" (1/2) ... [2021-08-12 23:12:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3395e9d6 and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 11:12:38, skipping insertion in model container [2021-08-12 23:12:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 11:12:38" (2/2) ... [2021-08-12 23:12:38,652 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2021-08-12 23:12:38,657 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 23:12:38,658 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 23:12:38,658 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 23:12:38,706 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-12 23:12:38,726 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-12 23:12:38,755 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 23:12:38,755 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 23:12:38,755 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 23:12:38,755 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 23:12:38,755 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 23:12:38,755 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 23:12:38,756 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 23:12:38,756 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 23:12:38,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 45 transitions, 122 flow [2021-08-12 23:12:38,830 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-08-12 23:12:38,830 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-12 23:12:38,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 0/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-12 23:12:38,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 45 transitions, 122 flow [2021-08-12 23:12:38,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 39 transitions, 102 flow [2021-08-12 23:12:38,858 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-08-12 23:12:38,859 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-08-12 23:12:38,859 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:38,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:38,860 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:38,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1388169208, now seen corresponding path program 1 times [2021-08-12 23:12:38,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:38,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455213631] [2021-08-12 23:12:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:39,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 23:12:39,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:39,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:39,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455213631] [2021-08-12 23:12:39,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455213631] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:39,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:39,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 23:12:39,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789796550] [2021-08-12 23:12:39,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:12:39,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:39,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:12:39,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:12:39,038 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 45 [2021-08-12 23:12:39,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:39,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 45 [2021-08-12 23:12:39,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:39,070 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-08-12 23:12:39,071 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-08-12 23:12:39,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 45 events. 1/45 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 1 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 47. Up to 6 conditions per place. [2021-08-12 23:12:39,076 INFO L132 encePairwiseOnDemand]: 42/45 looper letters, 2 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2021-08-12 23:12:39,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 110 flow [2021-08-12 23:12:39,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:12:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:12:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-08-12 23:12:39,090 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2021-08-12 23:12:39,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:39,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,105 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2021-08-12 23:12:39,105 INFO L482 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 110 flow [2021-08-12 23:12:39,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,105 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:39,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:39,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 23:12:39,106 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:39,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1425460208, now seen corresponding path program 2 times [2021-08-12 23:12:39,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:39,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37747589] [2021-08-12 23:12:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:39,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 23:12:39,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:39,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:39,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37747589] [2021-08-12 23:12:39,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37747589] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:39,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:39,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 23:12:39,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319271765] [2021-08-12 23:12:39,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:12:39,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:39,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:12:39,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:12:39,175 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 45 [2021-08-12 23:12:39,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:39,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 45 [2021-08-12 23:12:39,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:39,195 INFO L129 PetriNetUnfolder]: 2/50 cut-off events. [2021-08-12 23:12:39,195 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-08-12 23:12:39,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 50 events. 2/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 2 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 58. Up to 6 conditions per place. [2021-08-12 23:12:39,198 INFO L132 encePairwiseOnDemand]: 42/45 looper letters, 2 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2021-08-12 23:12:39,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 39 transitions, 118 flow [2021-08-12 23:12:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:12:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:12:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-08-12 23:12:39,204 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2021-08-12 23:12:39,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:39,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,208 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2021-08-12 23:12:39,208 INFO L482 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 118 flow [2021-08-12 23:12:39,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,208 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:39,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:39,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 23:12:39,209 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:39,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:39,209 INFO L82 PathProgramCache]: Analyzing trace with hash -911535578, now seen corresponding path program 3 times [2021-08-12 23:12:39,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:39,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262339056] [2021-08-12 23:12:39,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:39,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 23:12:39,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:39,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:39,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262339056] [2021-08-12 23:12:39,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262339056] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:39,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:39,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 23:12:39,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140617681] [2021-08-12 23:12:39,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:12:39,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:39,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:12:39,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:12:39,258 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 45 [2021-08-12 23:12:39,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:39,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 45 [2021-08-12 23:12:39,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:39,281 INFO L129 PetriNetUnfolder]: 2/50 cut-off events. [2021-08-12 23:12:39,282 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-08-12 23:12:39,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 50 events. 2/50 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 133 event pairs, 2 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2021-08-12 23:12:39,283 INFO L132 encePairwiseOnDemand]: 42/45 looper letters, 2 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2021-08-12 23:12:39,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 39 transitions, 126 flow [2021-08-12 23:12:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:12:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:12:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-08-12 23:12:39,292 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2021-08-12 23:12:39,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:39,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-08-12 23:12:39,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,298 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 6 predicate places. [2021-08-12 23:12:39,298 INFO L482 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 126 flow [2021-08-12 23:12:39,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,298 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:39,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:39,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 23:12:39,299 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -790178204, now seen corresponding path program 4 times [2021-08-12 23:12:39,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:39,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013155244] [2021-08-12 23:12:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:39,469 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:39,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:39,480 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:39,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:39,497 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:39,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:39,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:39,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:39,792 INFO L142 QuantifierPusher]: treesize reduction 11, result has 63.3 percent of original size [2021-08-12 23:12:39,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-12 23:12:39,799 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-08-12 23:12:39,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:39,834 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:39,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:39,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:39,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:39,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:39,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013155244] [2021-08-12 23:12:39,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013155244] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:39,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:39,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-12 23:12:39,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736161836] [2021-08-12 23:12:39,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-12 23:12:39,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:39,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-12 23:12:39,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2021-08-12 23:12:39,842 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:39,842 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 39 transitions, 126 flow. Second operand has 16 states, 16 states have (on average 27.125) internal successors, (434), 16 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:39,842 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:39,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:39,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:41,115 INFO L129 PetriNetUnfolder]: 940/1988 cut-off events. [2021-08-12 23:12:41,115 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2021-08-12 23:12:41,123 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 1988 events. 940/1988 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 13405 event pairs, 459 based on Foata normal form. 1/1922 useless extension candidates. Maximal degree in co-relation 3696. Up to 1259 conditions per place. [2021-08-12 23:12:41,133 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 41 selfloop transitions, 51 changer transitions 2/115 dead transitions. [2021-08-12 23:12:41,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 115 transitions, 466 flow [2021-08-12 23:12:41,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-12 23:12:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-08-12 23:12:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 693 transitions. [2021-08-12 23:12:41,136 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2021-08-12 23:12:41,136 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 693 transitions. [2021-08-12 23:12:41,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 693 transitions. [2021-08-12 23:12:41,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:41,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 693 transitions. [2021-08-12 23:12:41,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 30.130434782608695) internal successors, (693), 23 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:41,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:41,143 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 45.0) internal successors, (1080), 24 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:41,143 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 28 predicate places. [2021-08-12 23:12:41,143 INFO L482 AbstractCegarLoop]: Abstraction has has 80 places, 115 transitions, 466 flow [2021-08-12 23:12:41,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 27.125) internal successors, (434), 16 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:41,143 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:41,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:41,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 23:12:41,144 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:41,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:41,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1823679816, now seen corresponding path program 5 times [2021-08-12 23:12:41,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:41,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277597045] [2021-08-12 23:12:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:41,187 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:41,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:41,192 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:41,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:41,199 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-08-12 23:12:41,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-12 23:12:41,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:41,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:41,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:41,433 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:12:41,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:41,449 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:12:41,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:41,488 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:41,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:41,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:41,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:41,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:41,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277597045] [2021-08-12 23:12:41,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277597045] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:41,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:41,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-12 23:12:41,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207737253] [2021-08-12 23:12:41,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-08-12 23:12:41,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:41,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-12 23:12:41,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-08-12 23:12:41,502 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:41,503 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 115 transitions, 466 flow. Second operand has 17 states, 17 states have (on average 27.058823529411764) internal successors, (460), 17 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:41,503 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:41,503 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:41,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:45,946 INFO L129 PetriNetUnfolder]: 1843/4028 cut-off events. [2021-08-12 23:12:45,947 INFO L130 PetriNetUnfolder]: For 647/1019 co-relation queries the response was YES. [2021-08-12 23:12:45,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10438 conditions, 4028 events. 1843/4028 cut-off events. For 647/1019 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 31075 event pairs, 511 based on Foata normal form. 23/3940 useless extension candidates. Maximal degree in co-relation 10342. Up to 2610 conditions per place. [2021-08-12 23:12:45,984 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 161 selfloop transitions, 377 changer transitions 5/564 dead transitions. [2021-08-12 23:12:45,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 564 transitions, 3348 flow [2021-08-12 23:12:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-08-12 23:12:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-08-12 23:12:46,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 3053 transitions. [2021-08-12 23:12:46,038 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.685297418630752 [2021-08-12 23:12:46,039 INFO L72 ComplementDD]: Start complementDD. Operand 99 states and 3053 transitions. [2021-08-12 23:12:46,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 3053 transitions. [2021-08-12 23:12:46,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:46,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 99 states and 3053 transitions. [2021-08-12 23:12:46,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 100 states, 99 states have (on average 30.838383838383837) internal successors, (3053), 99 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 100 states, 100 states have (on average 45.0) internal successors, (4500), 100 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,080 INFO L81 ComplementDD]: Finished complementDD. Result has 100 states, 100 states have (on average 45.0) internal successors, (4500), 100 states have internal predecessors, (4500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,081 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 126 predicate places. [2021-08-12 23:12:46,081 INFO L482 AbstractCegarLoop]: Abstraction has has 178 places, 564 transitions, 3348 flow [2021-08-12 23:12:46,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 27.058823529411764) internal successors, (460), 17 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,081 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:46,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:46,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 23:12:46,082 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:46,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1282959242, now seen corresponding path program 6 times [2021-08-12 23:12:46,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:46,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217834479] [2021-08-12 23:12:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:46,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-08-12 23:12:46,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:46,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:46,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217834479] [2021-08-12 23:12:46,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217834479] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:46,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:46,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 23:12:46,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774419539] [2021-08-12 23:12:46,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 23:12:46,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:46,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 23:12:46,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 23:12:46,152 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 45 [2021-08-12 23:12:46,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 564 transitions, 3348 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:46,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 45 [2021-08-12 23:12:46,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:46,521 INFO L129 PetriNetUnfolder]: 1585/3475 cut-off events. [2021-08-12 23:12:46,521 INFO L130 PetriNetUnfolder]: For 568/893 co-relation queries the response was YES. [2021-08-12 23:12:46,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9219 conditions, 3475 events. 1585/3475 cut-off events. For 568/893 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 25961 event pairs, 418 based on Foata normal form. 93/3476 useless extension candidates. Maximal degree in co-relation 9121. Up to 2230 conditions per place. [2021-08-12 23:12:46,557 INFO L132 encePairwiseOnDemand]: 42/45 looper letters, 2 selfloop transitions, 2 changer transitions 6/557 dead transitions. [2021-08-12 23:12:46,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 557 transitions, 3314 flow [2021-08-12 23:12:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 23:12:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 23:12:46,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-08-12 23:12:46,558 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2021-08-12 23:12:46,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-08-12 23:12:46,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-08-12 23:12:46,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:46,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-08-12 23:12:46,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,559 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 128 predicate places. [2021-08-12 23:12:46,560 INFO L482 AbstractCegarLoop]: Abstraction has has 180 places, 557 transitions, 3314 flow [2021-08-12 23:12:46,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,560 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:46,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:46,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 23:12:46,563 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:46,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1870836918, now seen corresponding path program 7 times [2021-08-12 23:12:46,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:46,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980453382] [2021-08-12 23:12:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:46,636 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:46,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:46,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:46,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:46,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-08-12 23:12:46,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-12 23:12:46,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:46,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:46,949 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-08-12 23:12:46,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:46,974 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:46,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:46,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:46,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:46,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:46,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980453382] [2021-08-12 23:12:46,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980453382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:46,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:46,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:12:46,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110902967] [2021-08-12 23:12:46,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:12:46,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:46,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:12:46,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:12:46,984 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:46,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 557 transitions, 3314 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:46,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:46,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:46,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:50,274 INFO L129 PetriNetUnfolder]: 2043/4496 cut-off events. [2021-08-12 23:12:50,274 INFO L130 PetriNetUnfolder]: For 1613/2383 co-relation queries the response was YES. [2021-08-12 23:12:50,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15109 conditions, 4496 events. 2043/4496 cut-off events. For 1613/2383 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 35432 event pairs, 415 based on Foata normal form. 11/4414 useless extension candidates. Maximal degree in co-relation 14990. Up to 2928 conditions per place. [2021-08-12 23:12:50,325 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 564 selfloop transitions, 257 changer transitions 13/855 dead transitions. [2021-08-12 23:12:50,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 855 transitions, 6770 flow [2021-08-12 23:12:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-08-12 23:12:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-08-12 23:12:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 2230 transitions. [2021-08-12 23:12:50,329 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6696696696696697 [2021-08-12 23:12:50,330 INFO L72 ComplementDD]: Start complementDD. Operand 74 states and 2230 transitions. [2021-08-12 23:12:50,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 2230 transitions. [2021-08-12 23:12:50,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:50,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 74 states and 2230 transitions. [2021-08-12 23:12:50,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 75 states, 74 states have (on average 30.135135135135137) internal successors, (2230), 74 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:50,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 75 states, 75 states have (on average 45.0) internal successors, (3375), 75 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:50,340 INFO L81 ComplementDD]: Finished complementDD. Result has 75 states, 75 states have (on average 45.0) internal successors, (3375), 75 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:50,341 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 201 predicate places. [2021-08-12 23:12:50,341 INFO L482 AbstractCegarLoop]: Abstraction has has 253 places, 855 transitions, 6770 flow [2021-08-12 23:12:50,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:50,341 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:50,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:50,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 23:12:50,341 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash 252104594, now seen corresponding path program 8 times [2021-08-12 23:12:50,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:50,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074551457] [2021-08-12 23:12:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:50,413 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:50,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:50,433 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:50,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:50,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:50,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:50,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:50,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:50,665 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:12:50,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:50,692 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:50,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:50,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:50,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:50,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:50,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074551457] [2021-08-12 23:12:50,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074551457] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:50,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:50,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:12:50,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846595532] [2021-08-12 23:12:50,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:12:50,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:50,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:12:50,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:12:50,700 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:50,700 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 855 transitions, 6770 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:50,700 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:50,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:50,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:54,432 INFO L129 PetriNetUnfolder]: 2547/5657 cut-off events. [2021-08-12 23:12:54,432 INFO L130 PetriNetUnfolder]: For 4130/6201 co-relation queries the response was YES. [2021-08-12 23:12:54,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22909 conditions, 5657 events. 2547/5657 cut-off events. For 4130/6201 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 46737 event pairs, 373 based on Foata normal form. 164/5740 useless extension candidates. Maximal degree in co-relation 22767. Up to 3670 conditions per place. [2021-08-12 23:12:54,511 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 766 selfloop transitions, 568 changer transitions 14/1369 dead transitions. [2021-08-12 23:12:54,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 1369 transitions, 13578 flow [2021-08-12 23:12:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-08-12 23:12:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-08-12 23:12:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 2326 transitions. [2021-08-12 23:12:54,521 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6712842712842713 [2021-08-12 23:12:54,522 INFO L72 ComplementDD]: Start complementDD. Operand 77 states and 2326 transitions. [2021-08-12 23:12:54,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 2326 transitions. [2021-08-12 23:12:54,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:54,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 77 states and 2326 transitions. [2021-08-12 23:12:54,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 78 states, 77 states have (on average 30.207792207792206) internal successors, (2326), 77 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:54,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 78 states, 78 states have (on average 45.0) internal successors, (3510), 78 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:54,544 INFO L81 ComplementDD]: Finished complementDD. Result has 78 states, 78 states have (on average 45.0) internal successors, (3510), 78 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:54,544 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 277 predicate places. [2021-08-12 23:12:54,544 INFO L482 AbstractCegarLoop]: Abstraction has has 329 places, 1369 transitions, 13578 flow [2021-08-12 23:12:54,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:54,544 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:54,545 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:54,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 23:12:54,545 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:54,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1193455512, now seen corresponding path program 9 times [2021-08-12 23:12:54,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:54,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530081555] [2021-08-12 23:12:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:54,593 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:54,597 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:54,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:54,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:54,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:54,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:54,810 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:12:54,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:54,833 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:54,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:54,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:54,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:54,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530081555] [2021-08-12 23:12:54,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530081555] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:54,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:54,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:12:54,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708748030] [2021-08-12 23:12:54,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:12:54,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:54,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:12:54,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:12:54,839 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:54,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 1369 transitions, 13578 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:54,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:54,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:54,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:12:59,019 INFO L129 PetriNetUnfolder]: 3467/7465 cut-off events. [2021-08-12 23:12:59,020 INFO L130 PetriNetUnfolder]: For 8496/11375 co-relation queries the response was YES. [2021-08-12 23:12:59,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35750 conditions, 7465 events. 3467/7465 cut-off events. For 8496/11375 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 63253 event pairs, 424 based on Foata normal form. 203/7558 useless extension candidates. Maximal degree in co-relation 35574. Up to 4904 conditions per place. [2021-08-12 23:12:59,117 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 1271 selfloop transitions, 754 changer transitions 15/2061 dead transitions. [2021-08-12 23:12:59,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 2061 transitions, 24578 flow [2021-08-12 23:12:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-08-12 23:12:59,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-08-12 23:12:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 2586 transitions. [2021-08-12 23:12:59,122 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6841269841269841 [2021-08-12 23:12:59,122 INFO L72 ComplementDD]: Start complementDD. Operand 84 states and 2586 transitions. [2021-08-12 23:12:59,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84 states and 2586 transitions. [2021-08-12 23:12:59,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:12:59,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 84 states and 2586 transitions. [2021-08-12 23:12:59,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 85 states, 84 states have (on average 30.785714285714285) internal successors, (2586), 84 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:59,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 85 states, 85 states have (on average 45.0) internal successors, (3825), 85 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:59,133 INFO L81 ComplementDD]: Finished complementDD. Result has 85 states, 85 states have (on average 45.0) internal successors, (3825), 85 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:59,133 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 360 predicate places. [2021-08-12 23:12:59,133 INFO L482 AbstractCegarLoop]: Abstraction has has 412 places, 2061 transitions, 24578 flow [2021-08-12 23:12:59,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:59,134 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:12:59,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:12:59,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-12 23:12:59,134 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:12:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:12:59,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1696968084, now seen corresponding path program 10 times [2021-08-12 23:12:59,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:12:59,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7775299] [2021-08-12 23:12:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:12:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:12:59,180 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:12:59,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:12:59,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:12:59,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:12:59,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:59,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:12:59,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:59,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:59,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:59,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:59,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:12:59,424 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:12:59,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:12:59,445 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:12:59,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:12:59,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:12:59,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:12:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:12:59,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:12:59,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7775299] [2021-08-12 23:12:59,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7775299] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:12:59,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:12:59,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:12:59,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330738798] [2021-08-12 23:12:59,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:12:59,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:12:59,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:12:59,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:12:59,460 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:12:59,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 2061 transitions, 24578 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:12:59,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:12:59,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:12:59,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:01,159 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2021-08-12 23:13:04,010 INFO L129 PetriNetUnfolder]: 4342/9177 cut-off events. [2021-08-12 23:13:04,011 INFO L130 PetriNetUnfolder]: For 16065/21239 co-relation queries the response was YES. [2021-08-12 23:13:04,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50689 conditions, 9177 events. 4342/9177 cut-off events. For 16065/21239 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 79435 event pairs, 476 based on Foata normal form. 184/9227 useless extension candidates. Maximal degree in co-relation 50475. Up to 6107 conditions per place. [2021-08-12 23:13:04,103 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 2062 selfloop transitions, 590 changer transitions 16/2689 dead transitions. [2021-08-12 23:13:04,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 2689 transitions, 37450 flow [2021-08-12 23:13:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-08-12 23:13:04,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-08-12 23:13:04,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 2177 transitions. [2021-08-12 23:13:04,106 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6911111111111111 [2021-08-12 23:13:04,106 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 2177 transitions. [2021-08-12 23:13:04,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 2177 transitions. [2021-08-12 23:13:04,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:04,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 2177 transitions. [2021-08-12 23:13:04,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 31.1) internal successors, (2177), 70 states have internal predecessors, (2177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:04,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 45.0) internal successors, (3195), 71 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:04,115 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 45.0) internal successors, (3195), 71 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:04,115 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 429 predicate places. [2021-08-12 23:13:04,116 INFO L482 AbstractCegarLoop]: Abstraction has has 481 places, 2689 transitions, 37450 flow [2021-08-12 23:13:04,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:04,116 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:04,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:04,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-12 23:13:04,116 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:04,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:04,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1900757888, now seen corresponding path program 11 times [2021-08-12 23:13:04,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:04,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067546513] [2021-08-12 23:13:04,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:04,141 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:04,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:04,145 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:04,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:04,151 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:04,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:04,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:04,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:04,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:04,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:04,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:04,375 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:04,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:04,397 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:04,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:04,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:04,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:04,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:04,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:04,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067546513] [2021-08-12 23:13:04,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067546513] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:04,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:04,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:04,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357944597] [2021-08-12 23:13:04,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:04,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:04,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:04,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:04,407 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:04,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 2689 transitions, 37450 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:04,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:04,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:04,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:11,000 INFO L129 PetriNetUnfolder]: 5329/11137 cut-off events. [2021-08-12 23:13:11,000 INFO L130 PetriNetUnfolder]: For 28811/39034 co-relation queries the response was YES. [2021-08-12 23:13:11,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69752 conditions, 11137 events. 5329/11137 cut-off events. For 28811/39034 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 98615 event pairs, 404 based on Foata normal form. 730/11698 useless extension candidates. Maximal degree in co-relation 69470. Up to 7490 conditions per place. [2021-08-12 23:13:11,123 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 1940 selfloop transitions, 1479 changer transitions 21/3461 dead transitions. [2021-08-12 23:13:11,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 3461 transitions, 55138 flow [2021-08-12 23:13:11,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-08-12 23:13:11,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-08-12 23:13:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 2841 transitions. [2021-08-12 23:13:11,127 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.678853046594982 [2021-08-12 23:13:11,127 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 2841 transitions. [2021-08-12 23:13:11,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 2841 transitions. [2021-08-12 23:13:11,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:11,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 2841 transitions. [2021-08-12 23:13:11,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 30.548387096774192) internal successors, (2841), 93 states have internal predecessors, (2841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:11,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 45.0) internal successors, (4230), 94 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:11,139 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 45.0) internal successors, (4230), 94 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:11,139 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 521 predicate places. [2021-08-12 23:13:11,139 INFO L482 AbstractCegarLoop]: Abstraction has has 573 places, 3461 transitions, 55138 flow [2021-08-12 23:13:11,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:11,140 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:11,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:11,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-12 23:13:11,140 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:11,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:11,140 INFO L82 PathProgramCache]: Analyzing trace with hash 577742702, now seen corresponding path program 12 times [2021-08-12 23:13:11,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:11,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42237483] [2021-08-12 23:13:11,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:11,164 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:11,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:11,168 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:11,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:11,175 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:11,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:11,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:11,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:11,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:11,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:11,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:11,382 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:11,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:11,405 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:11,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:11,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:11,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:11,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:11,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42237483] [2021-08-12 23:13:11,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42237483] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:11,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:11,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:11,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020364560] [2021-08-12 23:13:11,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:11,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:11,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:11,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:11,411 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:11,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 3461 transitions, 55138 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:11,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:11,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:11,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:17,878 INFO L129 PetriNetUnfolder]: 5631/11856 cut-off events. [2021-08-12 23:13:17,879 INFO L130 PetriNetUnfolder]: For 38951/48769 co-relation queries the response was YES. [2021-08-12 23:13:17,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82444 conditions, 11856 events. 5631/11856 cut-off events. For 38951/48769 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 107063 event pairs, 436 based on Foata normal form. 696/12385 useless extension candidates. Maximal degree in co-relation 82138. Up to 7956 conditions per place. [2021-08-12 23:13:18,008 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 2946 selfloop transitions, 730 changer transitions 27/3724 dead transitions. [2021-08-12 23:13:18,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 3724 transitions, 66752 flow [2021-08-12 23:13:18,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-12 23:13:18,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-08-12 23:13:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 1242 transitions. [2021-08-12 23:13:18,011 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2021-08-12 23:13:18,011 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 1242 transitions. [2021-08-12 23:13:18,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 1242 transitions. [2021-08-12 23:13:18,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:18,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 1242 transitions. [2021-08-12 23:13:18,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 29.571428571428573) internal successors, (1242), 42 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:18,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 45.0) internal successors, (1935), 43 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:18,016 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 45.0) internal successors, (1935), 43 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:18,016 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 562 predicate places. [2021-08-12 23:13:18,016 INFO L482 AbstractCegarLoop]: Abstraction has has 614 places, 3724 transitions, 66752 flow [2021-08-12 23:13:18,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:18,016 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:18,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:18,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-12 23:13:18,017 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:18,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:18,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1068540482, now seen corresponding path program 13 times [2021-08-12 23:13:18,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:18,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548226048] [2021-08-12 23:13:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:18,040 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:18,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:18,044 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:18,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:18,050 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:18,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:18,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:18,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:18,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:18,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:18,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:18,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:18,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:18,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:18,258 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:18,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:18,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:18,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:18,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:18,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548226048] [2021-08-12 23:13:18,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548226048] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:18,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:18,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:18,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664253752] [2021-08-12 23:13:18,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:18,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:18,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:18,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:18,264 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:18,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 3724 transitions, 66752 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:18,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:18,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:18,264 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:26,035 INFO L129 PetriNetUnfolder]: 5829/12246 cut-off events. [2021-08-12 23:13:26,036 INFO L130 PetriNetUnfolder]: For 51664/63939 co-relation queries the response was YES. [2021-08-12 23:13:26,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94261 conditions, 12246 events. 5829/12246 cut-off events. For 51664/63939 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 111151 event pairs, 419 based on Foata normal form. 713/12779 useless extension candidates. Maximal degree in co-relation 93931. Up to 8280 conditions per place. [2021-08-12 23:13:26,154 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 2888 selfloop transitions, 1078 changer transitions 33/4020 dead transitions. [2021-08-12 23:13:26,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 4020 transitions, 80078 flow [2021-08-12 23:13:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-08-12 23:13:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-08-12 23:13:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 1293 transitions. [2021-08-12 23:13:26,157 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6682170542635659 [2021-08-12 23:13:26,157 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 1293 transitions. [2021-08-12 23:13:26,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 1293 transitions. [2021-08-12 23:13:26,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:26,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 1293 transitions. [2021-08-12 23:13:26,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 30.069767441860463) internal successors, (1293), 43 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:26,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 45.0) internal successors, (1980), 44 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:26,162 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 45.0) internal successors, (1980), 44 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:26,162 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 604 predicate places. [2021-08-12 23:13:26,162 INFO L482 AbstractCegarLoop]: Abstraction has has 656 places, 4020 transitions, 80078 flow [2021-08-12 23:13:26,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:26,163 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:26,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:26,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-12 23:13:26,163 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:26,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:26,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1175455316, now seen corresponding path program 14 times [2021-08-12 23:13:26,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:26,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688114681] [2021-08-12 23:13:26,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:26,186 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:26,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:26,190 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:26,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:26,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:26,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:26,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:26,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:26,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:26,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:26,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:26,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:26,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:26,368 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:26,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:26,387 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:26,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:26,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:26,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:26,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:26,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688114681] [2021-08-12 23:13:26,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688114681] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:26,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:26,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:26,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848748112] [2021-08-12 23:13:26,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:26,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:26,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:26,399 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:26,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 4020 transitions, 80078 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:26,400 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:26,400 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:26,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:36,588 INFO L129 PetriNetUnfolder]: 6321/13250 cut-off events. [2021-08-12 23:13:36,588 INFO L130 PetriNetUnfolder]: For 72452/87521 co-relation queries the response was YES. [2021-08-12 23:13:36,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111309 conditions, 13250 events. 6321/13250 cut-off events. For 72452/87521 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 122100 event pairs, 465 based on Foata normal form. 583/13641 useless extension candidates. Maximal degree in co-relation 110955. Up to 8962 conditions per place. [2021-08-12 23:13:36,733 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 3514 selfloop transitions, 778 changer transitions 39/4352 dead transitions. [2021-08-12 23:13:36,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 4352 transitions, 95380 flow [2021-08-12 23:13:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-08-12 23:13:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2021-08-12 23:13:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 1869 transitions. [2021-08-12 23:13:36,735 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6698924731182796 [2021-08-12 23:13:36,735 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 1869 transitions. [2021-08-12 23:13:36,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 1869 transitions. [2021-08-12 23:13:36,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:36,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 1869 transitions. [2021-08-12 23:13:36,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 30.14516129032258) internal successors, (1869), 62 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:36,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 45.0) internal successors, (2835), 63 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:36,742 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 45.0) internal successors, (2835), 63 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:36,742 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 665 predicate places. [2021-08-12 23:13:36,743 INFO L482 AbstractCegarLoop]: Abstraction has has 717 places, 4352 transitions, 95380 flow [2021-08-12 23:13:36,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:36,743 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:36,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:36,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-12 23:13:36,743 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:36,743 INFO L82 PathProgramCache]: Analyzing trace with hash -369961320, now seen corresponding path program 15 times [2021-08-12 23:13:36,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:36,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774425506] [2021-08-12 23:13:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:36,765 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:36,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:36,769 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:36,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:36,775 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:36,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:36,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:36,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:36,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:36,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:36,980 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:36,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:36,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:36,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:36,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:36,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774425506] [2021-08-12 23:13:36,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774425506] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:36,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:36,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:36,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478815079] [2021-08-12 23:13:36,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:36,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:36,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:36,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:36,985 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:36,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 717 places, 4352 transitions, 95380 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:36,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:36,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:36,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:13:48,639 INFO L129 PetriNetUnfolder]: 6329/13294 cut-off events. [2021-08-12 23:13:48,640 INFO L130 PetriNetUnfolder]: For 91914/112531 co-relation queries the response was YES. [2021-08-12 23:13:48,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121088 conditions, 13294 events. 6329/13294 cut-off events. For 91914/112531 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 122734 event pairs, 466 based on Foata normal form. 736/13813 useless extension candidates. Maximal degree in co-relation 120710. Up to 8989 conditions per place. [2021-08-12 23:13:48,776 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 3135 selfloop transitions, 1192 changer transitions 45/4393 dead transitions. [2021-08-12 23:13:48,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 760 places, 4393 transitions, 105026 flow [2021-08-12 23:13:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-12 23:13:48,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-08-12 23:13:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1324 transitions. [2021-08-12 23:13:48,778 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6686868686868687 [2021-08-12 23:13:48,778 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 1324 transitions. [2021-08-12 23:13:48,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 1324 transitions. [2021-08-12 23:13:48,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:13:48,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 1324 transitions. [2021-08-12 23:13:48,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 30.09090909090909) internal successors, (1324), 44 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:48,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 45.0) internal successors, (2025), 45 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:48,783 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 45.0) internal successors, (2025), 45 states have internal predecessors, (2025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:48,783 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 708 predicate places. [2021-08-12 23:13:48,783 INFO L482 AbstractCegarLoop]: Abstraction has has 760 places, 4393 transitions, 105026 flow [2021-08-12 23:13:48,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:48,783 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:13:48,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:13:48,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-12 23:13:48,784 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:13:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:13:48,784 INFO L82 PathProgramCache]: Analyzing trace with hash -916216938, now seen corresponding path program 16 times [2021-08-12 23:13:48,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:13:48,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025036845] [2021-08-12 23:13:48,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:13:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:13:48,814 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:13:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:13:48,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:48,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:48,829 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:13:48,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:13:48,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:48,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:48,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:48,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:48,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:48,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:48,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:48,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:48,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:13:48,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:48,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:48,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:13:48,991 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:13:48,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:13:49,009 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:13:49,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:13:49,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:13:49,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:13:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:13:49,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:13:49,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025036845] [2021-08-12 23:13:49,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025036845] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:13:49,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:13:49,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:13:49,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460216453] [2021-08-12 23:13:49,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:13:49,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:13:49,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:13:49,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:13:49,014 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:13:49,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 760 places, 4393 transitions, 105026 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:13:49,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:13:49,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:13:49,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:14:03,523 INFO L129 PetriNetUnfolder]: 7299/15029 cut-off events. [2021-08-12 23:14:03,523 INFO L130 PetriNetUnfolder]: For 128369/155117 co-relation queries the response was YES. [2021-08-12 23:14:03,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148744 conditions, 15029 events. 7299/15029 cut-off events. For 128369/155117 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 139736 event pairs, 528 based on Foata normal form. 932/15702 useless extension candidates. Maximal degree in co-relation 148342. Up to 10307 conditions per place. [2021-08-12 23:14:03,697 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 3533 selfloop transitions, 1533 changer transitions 51/5138 dead transitions. [2021-08-12 23:14:03,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 5138 transitions, 133140 flow [2021-08-12 23:14:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-08-12 23:14:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-08-12 23:14:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 1814 transitions. [2021-08-12 23:14:03,700 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6832391713747646 [2021-08-12 23:14:03,700 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 1814 transitions. [2021-08-12 23:14:03,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 1814 transitions. [2021-08-12 23:14:03,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:14:03,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 1814 transitions. [2021-08-12 23:14:03,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 30.74576271186441) internal successors, (1814), 59 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:03,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 45.0) internal successors, (2700), 60 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:03,706 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 45.0) internal successors, (2700), 60 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:03,706 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 766 predicate places. [2021-08-12 23:14:03,707 INFO L482 AbstractCegarLoop]: Abstraction has has 818 places, 5138 transitions, 133140 flow [2021-08-12 23:14:03,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:03,707 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:14:03,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:14:03,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-12 23:14:03,707 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:14:03,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:14:03,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1042534752, now seen corresponding path program 17 times [2021-08-12 23:14:03,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:14:03,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437683965] [2021-08-12 23:14:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:14:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:14:03,741 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:14:03,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:14:03,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:14:03,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:14:03,751 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:14:03,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:14:03,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:14:03,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:03,921 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:14:03,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:14:03,940 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:14:03,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:03,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:03,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:14:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:14:03,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:14:03,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437683965] [2021-08-12 23:14:03,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437683965] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:14:03,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:14:03,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:14:03,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629366135] [2021-08-12 23:14:03,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:14:03,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:14:03,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:14:03,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:14:03,944 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:14:03,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 818 places, 5138 transitions, 133140 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:03,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:14:03,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:14:03,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:14:29,039 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-08-12 23:14:30,479 INFO L129 PetriNetUnfolder]: 9209/18854 cut-off events. [2021-08-12 23:14:30,479 INFO L130 PetriNetUnfolder]: For 187062/223277 co-relation queries the response was YES. [2021-08-12 23:14:30,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200958 conditions, 18854 events. 9209/18854 cut-off events. For 187062/223277 co-relation queries the response was YES. Maximal size of possible extension queue 1070. Compared 180896 event pairs, 528 based on Foata normal form. 1171/19657 useless extension candidates. Maximal degree in co-relation 200445. Up to 13113 conditions per place. [2021-08-12 23:14:30,719 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 4278 selfloop transitions, 2414 changer transitions 55/6768 dead transitions. [2021-08-12 23:14:30,719 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 923 places, 6768 transitions, 189014 flow [2021-08-12 23:14:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-08-12 23:14:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-08-12 23:14:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 3263 transitions. [2021-08-12 23:14:30,723 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6840670859538784 [2021-08-12 23:14:30,723 INFO L72 ComplementDD]: Start complementDD. Operand 106 states and 3263 transitions. [2021-08-12 23:14:30,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 3263 transitions. [2021-08-12 23:14:30,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:14:30,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 106 states and 3263 transitions. [2021-08-12 23:14:30,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 107 states, 106 states have (on average 30.78301886792453) internal successors, (3263), 106 states have internal predecessors, (3263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:30,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 107 states, 107 states have (on average 45.0) internal successors, (4815), 107 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:30,733 INFO L81 ComplementDD]: Finished complementDD. Result has 107 states, 107 states have (on average 45.0) internal successors, (4815), 107 states have internal predecessors, (4815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:30,734 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 871 predicate places. [2021-08-12 23:14:30,734 INFO L482 AbstractCegarLoop]: Abstraction has has 923 places, 6768 transitions, 189014 flow [2021-08-12 23:14:30,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:30,734 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:14:30,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:14:30,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-12 23:14:30,734 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:14:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:14:30,735 INFO L82 PathProgramCache]: Analyzing trace with hash -657381176, now seen corresponding path program 18 times [2021-08-12 23:14:30,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:14:30,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680375957] [2021-08-12 23:14:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:14:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:14:30,758 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:14:30,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:14:30,762 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:14:30,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:14:30,768 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:14:30,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:14:30,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:14:30,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:30,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:30,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:30,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:30,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:14:30,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:14:30,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:14:30,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:30,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:14:30,945 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:14:30,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:14:30,966 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:14:30,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:14:30,989 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:14:30,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:14:30,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:14:30,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:14:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:14:30,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:14:30,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680375957] [2021-08-12 23:14:30,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680375957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:14:30,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:14:30,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:14:30,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270529937] [2021-08-12 23:14:30,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:14:30,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:14:30,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:14:30,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:14:30,995 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:14:30,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 923 places, 6768 transitions, 189014 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:14:30,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:14:30,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:14:30,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:15:15,941 INFO L129 PetriNetUnfolder]: 10467/21364 cut-off events. [2021-08-12 23:15:15,941 INFO L130 PetriNetUnfolder]: For 221501/252695 co-relation queries the response was YES. [2021-08-12 23:15:16,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244378 conditions, 21364 events. 10467/21364 cut-off events. For 221501/252695 co-relation queries the response was YES. Maximal size of possible extension queue 1237. Compared 208443 event pairs, 558 based on Foata normal form. 1162/22081 useless extension candidates. Maximal degree in co-relation 243800. Up to 15034 conditions per place. [2021-08-12 23:15:16,245 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 5389 selfloop transitions, 2412 changer transitions 58/7880 dead transitions. [2021-08-12 23:15:16,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 997 places, 7880 transitions, 235868 flow [2021-08-12 23:15:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-08-12 23:15:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-08-12 23:15:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 2322 transitions. [2021-08-12 23:15:16,248 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.688 [2021-08-12 23:15:16,249 INFO L72 ComplementDD]: Start complementDD. Operand 75 states and 2322 transitions. [2021-08-12 23:15:16,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 2322 transitions. [2021-08-12 23:15:16,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:15:16,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 75 states and 2322 transitions. [2021-08-12 23:15:16,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 76 states, 75 states have (on average 30.96) internal successors, (2322), 75 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:15:16,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 76 states, 76 states have (on average 45.0) internal successors, (3420), 76 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:15:16,257 INFO L81 ComplementDD]: Finished complementDD. Result has 76 states, 76 states have (on average 45.0) internal successors, (3420), 76 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:15:16,257 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 945 predicate places. [2021-08-12 23:15:16,258 INFO L482 AbstractCegarLoop]: Abstraction has has 997 places, 7880 transitions, 235868 flow [2021-08-12 23:15:16,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:15:16,258 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:15:16,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:15:16,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-12 23:15:16,258 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:15:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:15:16,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2031483566, now seen corresponding path program 19 times [2021-08-12 23:15:16,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:15:16,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020746490] [2021-08-12 23:15:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:15:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:15:16,277 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:15:16,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:15:16,281 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:15:16,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:15:16,287 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:15:16,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:15:16,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:15:16,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:15:16,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:15:16,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:15:16,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:15:16,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:15:16,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:15:16,473 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:15:16,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:15:16,492 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:15:16,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:15:16,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:15:16,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:15:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:15:16,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:15:16,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020746490] [2021-08-12 23:15:16,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020746490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:15:16,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:15:16,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:15:16,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369505550] [2021-08-12 23:15:16,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:15:16,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:15:16,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:15:16,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:15:16,496 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:15:16,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 997 places, 7880 transitions, 235868 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:15:16,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:15:16,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:15:16,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:16:16,494 INFO L129 PetriNetUnfolder]: 10908/22316 cut-off events. [2021-08-12 23:16:16,494 INFO L130 PetriNetUnfolder]: For 273348/318872 co-relation queries the response was YES. [2021-08-12 23:16:16,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272103 conditions, 22316 events. 10908/22316 cut-off events. For 273348/318872 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 219699 event pairs, 620 based on Foata normal form. 1080/22937 useless extension candidates. Maximal degree in co-relation 271475. Up to 15783 conditions per place. [2021-08-12 23:16:16,929 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 6721 selfloop transitions, 1437 changer transitions 61/8240 dead transitions. [2021-08-12 23:16:16,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 8240 transitions, 263106 flow [2021-08-12 23:16:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-08-12 23:16:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-08-12 23:16:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 1386 transitions. [2021-08-12 23:16:16,931 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6844444444444444 [2021-08-12 23:16:16,931 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 1386 transitions. [2021-08-12 23:16:16,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 1386 transitions. [2021-08-12 23:16:16,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:16:16,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 1386 transitions. [2021-08-12 23:16:16,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 30.8) internal successors, (1386), 45 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:16:16,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 45.0) internal successors, (2070), 46 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:16:16,935 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 45.0) internal successors, (2070), 46 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:16:16,935 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 989 predicate places. [2021-08-12 23:16:16,935 INFO L482 AbstractCegarLoop]: Abstraction has has 1041 places, 8240 transitions, 263106 flow [2021-08-12 23:16:16,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:16:16,935 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:16:16,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:16:16,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-12 23:16:16,935 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:16:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:16:16,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1631561956, now seen corresponding path program 20 times [2021-08-12 23:16:16,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:16:16,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67574366] [2021-08-12 23:16:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:16:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:16:16,954 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:16:16,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:16:16,958 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:16:16,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:16:16,964 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:16:16,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:16:16,971 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-08-12 23:16:16,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-08-12 23:16:16,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:16,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:16:16,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:16,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:16:16,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:16:17,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:16:17,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:16:17,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:16:17,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:16:17,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:16:17,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:16:17,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:16:17,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:16:17,153 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:16:17,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:16:17,171 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:16:17,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:16:17,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:16:17,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:16:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:16:17,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:16:17,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67574366] [2021-08-12 23:16:17,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67574366] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:16:17,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:16:17,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:16:17,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958398851] [2021-08-12 23:16:17,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:16:17,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:16:17,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:16:17,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:16:17,176 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:16:17,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 8240 transitions, 263106 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:16:17,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:16:17,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:16:17,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:17:31,787 INFO L129 PetriNetUnfolder]: 11518/23584 cut-off events. [2021-08-12 23:17:31,787 INFO L130 PetriNetUnfolder]: For 320835/361690 co-relation queries the response was YES. [2021-08-12 23:17:31,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304296 conditions, 23584 events. 11518/23584 cut-off events. For 320835/361690 co-relation queries the response was YES. Maximal size of possible extension queue 1419. Compared 235417 event pairs, 605 based on Foata normal form. 414/23510 useless extension candidates. Maximal degree in co-relation 303616. Up to 16672 conditions per place. [2021-08-12 23:17:32,138 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 7737 selfloop transitions, 831 changer transitions 67/8656 dead transitions. [2021-08-12 23:17:32,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1099 places, 8656 transitions, 293688 flow [2021-08-12 23:17:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-08-12 23:17:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-08-12 23:17:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 1793 transitions. [2021-08-12 23:17:32,140 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6753295668549906 [2021-08-12 23:17:32,140 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 1793 transitions. [2021-08-12 23:17:32,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 1793 transitions. [2021-08-12 23:17:32,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:17:32,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 1793 transitions. [2021-08-12 23:17:32,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 30.389830508474578) internal successors, (1793), 59 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:17:32,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 45.0) internal successors, (2700), 60 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:17:32,146 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 45.0) internal successors, (2700), 60 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:17:32,146 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 1047 predicate places. [2021-08-12 23:17:32,146 INFO L482 AbstractCegarLoop]: Abstraction has has 1099 places, 8656 transitions, 293688 flow [2021-08-12 23:17:32,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:17:32,146 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:17:32,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:17:32,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-12 23:17:32,146 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:17:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:17:32,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1229564616, now seen corresponding path program 21 times [2021-08-12 23:17:32,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:17:32,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602861049] [2021-08-12 23:17:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:17:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:17:32,167 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:17:32,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:17:32,171 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:17:32,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:17:32,178 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:17:32,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:17:32,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:17:32,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:17:32,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:17:32,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:17:32,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:17:32,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:17:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:17:32,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:17:32,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:17:32,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:17:32,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:17:32,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:17:32,380 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:17:32,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:17:32,401 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:17:32,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:17:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:17:32,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:17:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:17:32,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:17:32,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602861049] [2021-08-12 23:17:32,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602861049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:17:32,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:17:32,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:17:32,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285793201] [2021-08-12 23:17:32,405 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:17:32,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:17:32,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:17:32,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:17:32,405 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:17:32,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1099 places, 8656 transitions, 293688 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:17:32,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:17:32,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:17:32,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:18:57,314 INFO L129 PetriNetUnfolder]: 11641/23841 cut-off events. [2021-08-12 23:18:57,314 INFO L130 PetriNetUnfolder]: For 373774/425245 co-relation queries the response was YES. [2021-08-12 23:18:57,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325513 conditions, 23841 events. 11641/23841 cut-off events. For 373774/425245 co-relation queries the response was YES. Maximal size of possible extension queue 1418. Compared 238269 event pairs, 612 based on Foata normal form. 921/24282 useless extension candidates. Maximal degree in co-relation 324779. Up to 16895 conditions per place. [2021-08-12 23:18:57,680 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 7189 selfloop transitions, 1530 changer transitions 71/8811 dead transitions. [2021-08-12 23:18:57,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1147 places, 8811 transitions, 316538 flow [2021-08-12 23:18:57,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-12 23:18:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-08-12 23:18:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 1512 transitions. [2021-08-12 23:18:57,682 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2021-08-12 23:18:57,682 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 1512 transitions. [2021-08-12 23:18:57,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 1512 transitions. [2021-08-12 23:18:57,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:18:57,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 1512 transitions. [2021-08-12 23:18:57,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 30.857142857142858) internal successors, (1512), 49 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:18:57,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 45.0) internal successors, (2250), 50 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:18:57,687 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 45.0) internal successors, (2250), 50 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:18:57,687 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 1095 predicate places. [2021-08-12 23:18:57,687 INFO L482 AbstractCegarLoop]: Abstraction has has 1147 places, 8811 transitions, 316538 flow [2021-08-12 23:18:57,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:18:57,687 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:18:57,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:18:57,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-12 23:18:57,688 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:18:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:18:57,688 INFO L82 PathProgramCache]: Analyzing trace with hash 790650332, now seen corresponding path program 22 times [2021-08-12 23:18:57,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:18:57,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062836853] [2021-08-12 23:18:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:18:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:18:57,706 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:18:57,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:18:57,710 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:18:57,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:18:57,715 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:18:57,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:18:57,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:18:57,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:18:57,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:18:57,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:18:57,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:18:57,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:18:57,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:18:57,901 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-08-12 23:18:57,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:18:57,921 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:18:57,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:18:57,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:18:57,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:18:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:18:57,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:18:57,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062836853] [2021-08-12 23:18:57,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062836853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:18:57,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:18:57,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-08-12 23:18:57,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741448905] [2021-08-12 23:18:57,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-08-12 23:18:57,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:18:57,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-12 23:18:57,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-08-12 23:18:57,925 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:18:57,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1147 places, 8811 transitions, 316538 flow. Second operand has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:18:57,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:18:57,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:18:57,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 23:20:32,347 INFO L129 PetriNetUnfolder]: 12304/25005 cut-off events. [2021-08-12 23:20:32,347 INFO L130 PetriNetUnfolder]: For 440815/494996 co-relation queries the response was YES. [2021-08-12 23:20:32,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360831 conditions, 25005 events. 12304/25005 cut-off events. For 440815/494996 co-relation queries the response was YES. Maximal size of possible extension queue 1528. Compared 250528 event pairs, 620 based on Foata normal form. 985/25450 useless extension candidates. Maximal degree in co-relation 360063. Up to 17800 conditions per place. [2021-08-12 23:20:32,790 INFO L132 encePairwiseOnDemand]: 27/45 looper letters, 7723 selfloop transitions, 1616 changer transitions 77/9437 dead transitions. [2021-08-12 23:20:32,791 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1201 places, 9437 transitions, 357906 flow [2021-08-12 23:20:32,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-08-12 23:20:32,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-08-12 23:20:32,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 1680 transitions. [2021-08-12 23:20:32,794 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2021-08-12 23:20:32,794 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 1680 transitions. [2021-08-12 23:20:32,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 1680 transitions. [2021-08-12 23:20:32,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 23:20:32,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 1680 transitions. [2021-08-12 23:20:32,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 30.545454545454547) internal successors, (1680), 55 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:20:32,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 45.0) internal successors, (2520), 56 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:20:32,799 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 45.0) internal successors, (2520), 56 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:20:32,799 INFO L348 CegarLoopForPetriNet]: 52 programPoint places, 1149 predicate places. [2021-08-12 23:20:32,799 INFO L482 AbstractCegarLoop]: Abstraction has has 1201 places, 9437 transitions, 357906 flow [2021-08-12 23:20:32,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 27.0) internal successors, (486), 18 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:20:32,799 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 23:20:32,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 23:20:32,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-12 23:20:32,800 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 23:20:32,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 23:20:32,800 INFO L82 PathProgramCache]: Analyzing trace with hash 410458306, now seen corresponding path program 23 times [2021-08-12 23:20:32,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 23:20:32,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992820725] [2021-08-12 23:20:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 23:20:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 23:20:32,816 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-08-12 23:20:32,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 23:20:32,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:20:32,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:20:32,826 INFO L142 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-08-12 23:20:32,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-08-12 23:20:32,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 23:20:32,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:20:32,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:20:32,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:20:32,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:20:32,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 23:20:32,978 INFO L142 QuantifierPusher]: treesize reduction 11, result has 57.7 percent of original size [2021-08-12 23:20:32,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-08-12 23:20:32,995 INFO L142 QuantifierPusher]: treesize reduction 20, result has 45.9 percent of original size [2021-08-12 23:20:32,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-08-12 23:20:32,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 23:20:32,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 23:20:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 23:20:32,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 23:20:32,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992820725] [2021-08-12 23:20:32,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992820725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 23:20:32,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 23:20:32,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-08-12 23:20:32,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451122542] [2021-08-12 23:20:32,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-08-12 23:20:32,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 23:20:33,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-12 23:20:33,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-08-12 23:20:33,001 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2021-08-12 23:20:33,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1201 places, 9437 transitions, 357906 flow. Second operand has 17 states, 17 states have (on average 27.058823529411764) internal successors, (460), 17 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 23:20:33,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 23:20:33,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2021-08-12 23:20:33,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-08-12 23:21:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-12 23:21:44,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-12 23:21:44,969 WARN L547 AbstractCegarLoop]: Verification canceled [2021-08-12 23:21:44,971 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-12 23:21:44,973 WARN L188 ceAbstractionStarter]: Timeout [2021-08-12 23:21:44,973 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.08 11:21:44 BasicIcfg [2021-08-12 23:21:44,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-12 23:21:44,973 INFO L168 Benchmark]: Toolchain (without parser) took 546624.82 ms. Allocated memory was 195.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 176.0 MB in the beginning and 698.7 MB in the end (delta: -522.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 8.0 GB. [2021-08-12 23:21:44,973 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.63 ms. Allocated memory is still 195.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 23:21:44,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.74 ms. Allocated memory is still 195.0 MB. Free memory was 175.8 MB in the beginning and 174.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 23:21:44,973 INFO L168 Benchmark]: Boogie Preprocessor took 20.81 ms. Allocated memory is still 195.0 MB. Free memory was 174.5 MB in the beginning and 173.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-12 23:21:44,974 INFO L168 Benchmark]: RCFGBuilder took 234.77 ms. Allocated memory is still 195.0 MB. Free memory was 173.5 MB in the beginning and 160.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-12 23:21:44,974 INFO L168 Benchmark]: TraceAbstraction took 546325.54 ms. Allocated memory was 195.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 160.1 MB in the beginning and 698.7 MB in the end (delta: -538.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. [2021-08-12 23:21:44,974 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 0.63 ms. Allocated memory is still 195.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.74 ms. Allocated memory is still 195.0 MB. Free memory was 175.8 MB in the beginning and 174.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.81 ms. Allocated memory is still 195.0 MB. Free memory was 174.5 MB in the beginning and 173.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 234.77 ms. Allocated memory is still 195.0 MB. Free memory was 173.5 MB in the beginning and 160.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 546325.54 ms. Allocated memory was 195.0 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 160.1 MB in the beginning and 698.7 MB in the end (delta: -538.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (17states, 26/45 universal loopers) in iteration 23,while PetriNetUnfolder was constructing finite prefix that currently has 253103 conditions, 16548 events (8527/16547 cut-off events. For 494117/555042 co-relation queries the response was YES. Maximal size of possible extension queue 1693. Compared 167171 event pairs, 583 based on Foata normal form. 1148/18563 useless extension candidates. Maximal degree in co-relation 253042. Up to 11720 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 22.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 546219.3ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 540271.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 80.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1018 SDtfs, 2316 SDslu, 2260 SDs, 0 SdLazy, 40285 SolverSat, 1698 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14784.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1356 GetRequests, 24 SyntacticMatches, 22 SemanticMatches, 1310 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28336 ImplicationChecksByTransitivity, 26852.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=357906occurred in iteration=22, InterpolantAutomatonStates: 1171, 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: 41.6ms SsaConstructionTime, 197.4ms SatisfiabilityAnalysisTime, 5370.0ms InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 874 ConstructedInterpolants, 0 QuantifiedInterpolants, 9948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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