/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:56:07,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:56:07,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:56:07,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:56:07,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:56:07,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:56:07,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:56:07,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:56:07,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:56:07,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:56:07,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:56:07,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:56:07,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:56:07,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:56:07,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:56:07,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:56:07,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:56:07,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:56:07,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:56:07,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:56:07,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:56:07,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:56:08,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:56:08,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:56:08,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:56:08,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:56:08,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:56:08,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:56:08,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:56:08,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:56:08,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:56:08,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:56:08,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:56:08,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:56:08,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:56:08,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:56:08,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:56:08,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:56:08,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:56:08,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:56:08,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:56:08,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:56:08,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:56:08,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:56:08,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:56:08,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:56:08,079 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:56:08,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:56:08,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:56:08,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:56:08,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:56:08,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:56:08,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:56:08,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:56:08,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:56:08,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:56:08,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:56:08,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:56:08,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:56:08,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:56:08,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:56:08,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:56:08,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:56:08,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:56:08,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:56:08,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:56:08,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:56:08,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:56:08,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:56:08,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:56:08,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:56:08,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:56:08,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:56:08,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:56:08,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:56:08,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:56:08,487 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:56:08,488 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:08,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7b5f6f00/9fef4925d1bf4bf89ea3189d7ae27944/FLAGdc4d469ad [2020-10-12 18:56:09,104 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:56:09,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:09,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7b5f6f00/9fef4925d1bf4bf89ea3189d7ae27944/FLAGdc4d469ad [2020-10-12 18:56:09,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a7b5f6f00/9fef4925d1bf4bf89ea3189d7ae27944 [2020-10-12 18:56:09,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:56:09,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:56:09,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:56:09,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:56:09,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:56:09,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:09,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09, skipping insertion in model container [2020-10-12 18:56:09,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:09,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:56:09,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:56:09,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:56:09,759 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:56:09,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:56:09,975 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:56:09,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09 WrapperNode [2020-10-12 18:56:09,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:56:09,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:56:09,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:56:09,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:56:09,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:09,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... [2020-10-12 18:56:10,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:56:10,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:56:10,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:56:10,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:56:10,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 18:56:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:56:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:56:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:56:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:56:10,111 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:56:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:56:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:56:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:56:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:56:10,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:56:10,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:56:10,114 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:56:10,115 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:56:10,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:56:10,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:56:10,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:56:10,983 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:56:10,984 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:56:10,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:56:10 BoogieIcfgContainer [2020-10-12 18:56:10,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:56:10,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:56:10,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:56:11,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:56:11,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:56:09" (1/3) ... [2020-10-12 18:56:11,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1c9519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:56:11, skipping insertion in model container [2020-10-12 18:56:11,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:56:09" (2/3) ... [2020-10-12 18:56:11,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1c9519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:56:11, skipping insertion in model container [2020-10-12 18:56:11,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:56:10" (3/3) ... [2020-10-12 18:56:11,011 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.BOUNDED-6.pals.c [2020-10-12 18:56:11,023 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:56:11,036 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:56:11,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:56:11,085 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:56:11,085 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:56:11,085 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:56:11,086 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:56:11,086 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:56:11,086 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:56:11,086 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:56:11,086 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:56:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-12 18:56:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:56:11,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:11,121 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:11,121 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:11,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1825328611, now seen corresponding path program 1 times [2020-10-12 18:56:11,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:11,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131460319] [2020-10-12 18:56:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:11,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:11,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:11,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:56:11,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-12 18:56:11,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-12 18:56:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:11,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:56:12,217 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:12,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:12,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:56:12,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:12,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:56:12,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:56:12,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:12,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:56:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:12,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:56:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:12,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:56:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:12,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:12,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:12,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:12,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:56:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:12,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:12,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:56:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:12,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:56:12,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:12,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:12,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:12,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131460319] [2020-10-12 18:56:12,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:12,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 18:56:12,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25716523] [2020-10-12 18:56:12,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 18:56:12,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:12,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 18:56:12,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-12 18:56:12,599 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2020-10-12 18:56:13,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:13,852 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2020-10-12 18:56:13,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 18:56:13,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-12 18:56:13,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:13,866 INFO L225 Difference]: With dead ends: 294 [2020-10-12 18:56:13,867 INFO L226 Difference]: Without dead ends: 184 [2020-10-12 18:56:13,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:56:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-12 18:56:13,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2020-10-12 18:56:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-12 18:56:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 271 transitions. [2020-10-12 18:56:13,936 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 271 transitions. Word has length 65 [2020-10-12 18:56:13,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:13,937 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 271 transitions. [2020-10-12 18:56:13,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 18:56:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 271 transitions. [2020-10-12 18:56:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-12 18:56:13,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:13,941 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:13,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:56:13,942 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:13,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:13,942 INFO L82 PathProgramCache]: Analyzing trace with hash 795969313, now seen corresponding path program 1 times [2020-10-12 18:56:13,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:13,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240320757] [2020-10-12 18:56:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:14,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:14,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:14,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-12 18:56:14,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:14,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-12 18:56:14,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:14,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:56:14,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:56:14,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:56:14,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:14,895 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:14,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:14,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:14,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:14,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:14,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:14,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:56:14,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:14,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:14,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:14,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:14,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:14,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 18:56:15,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 18:56:15,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:15,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 18:56:15,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 18:56:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:15,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:15,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:56:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 18:56:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:15,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:15,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 18:56:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:56:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:15,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-12 18:56:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:15,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:56:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:56:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:15,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:15,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:15,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:15,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:15,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:15,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:56:15,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:15,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:15,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240320757] [2020-10-12 18:56:15,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:15,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:56:15,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691226749] [2020-10-12 18:56:15,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:56:15,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:15,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:56:15,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:56:15,286 INFO L87 Difference]: Start difference. First operand 169 states and 271 transitions. Second operand 12 states. [2020-10-12 18:56:15,823 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:16,029 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:16,320 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:16,517 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:56:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:18,090 INFO L93 Difference]: Finished difference Result 296 states and 467 transitions. [2020-10-12 18:56:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 18:56:18,091 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-12 18:56:18,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:18,096 INFO L225 Difference]: With dead ends: 296 [2020-10-12 18:56:18,100 INFO L226 Difference]: Without dead ends: 193 [2020-10-12 18:56:18,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:56:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-12 18:56:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2020-10-12 18:56:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-12 18:56:18,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 241 transitions. [2020-10-12 18:56:18,148 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 241 transitions. Word has length 65 [2020-10-12 18:56:18,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:18,149 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 241 transitions. [2020-10-12 18:56:18,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:56:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 241 transitions. [2020-10-12 18:56:18,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-12 18:56:18,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:18,160 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:18,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:56:18,160 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:18,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:18,161 INFO L82 PathProgramCache]: Analyzing trace with hash 483350775, now seen corresponding path program 1 times [2020-10-12 18:56:18,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:18,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13418773] [2020-10-12 18:56:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:18,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:18,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:18,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:21,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-12 18:56:23,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:56:23,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:56:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:56:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:56:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:56:23,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:23,401 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:23,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:23,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:56:23,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-12 18:56:23,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:23,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 18:56:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:23,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:23,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:56:23,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:56:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:23,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 18:56:23,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:23,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:23,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:23,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:56:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:23,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:56:23,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:23,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:23,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:23,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:56:23,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:23,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:23,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:23,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:23,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:23,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:56:23,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:23,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:23,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:56:23,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:56:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:23,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13418773] [2020-10-12 18:56:23,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:23,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:56:23,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660431278] [2020-10-12 18:56:23,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:56:23,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:23,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:56:23,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:56:23,989 INFO L87 Difference]: Start difference. First operand 169 states and 241 transitions. Second operand 13 states. [2020-10-12 18:56:24,191 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:24,725 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:56:24,898 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:27,097 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:27,315 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:56:27,501 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:30,666 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-10-12 18:56:32,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:32,485 INFO L93 Difference]: Finished difference Result 1016 states and 1590 transitions. [2020-10-12 18:56:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-12 18:56:32,486 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-12 18:56:32,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:32,497 INFO L225 Difference]: With dead ends: 1016 [2020-10-12 18:56:32,497 INFO L226 Difference]: Without dead ends: 919 [2020-10-12 18:56:32,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=714, Invalid=2366, Unknown=0, NotChecked=0, Total=3080 [2020-10-12 18:56:32,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-12 18:56:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 730. [2020-10-12 18:56:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2020-10-12 18:56:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1110 transitions. [2020-10-12 18:56:32,597 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1110 transitions. Word has length 94 [2020-10-12 18:56:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:32,598 INFO L479 AbstractCegarLoop]: Abstraction has 730 states and 1110 transitions. [2020-10-12 18:56:32,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:56:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1110 transitions. [2020-10-12 18:56:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 18:56:32,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:32,602 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:32,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:56:32,602 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:32,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:32,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2067135605, now seen corresponding path program 1 times [2020-10-12 18:56:32,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:32,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728945412] [2020-10-12 18:56:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:32,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:32,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:32,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:34,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:37,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:37,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-12 18:56:37,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:56:37,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 18:56:37,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:37,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:56:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:56:37,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:56:37,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:37,833 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:37,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:37,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:37,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:37,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:37,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:56:37,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:37,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:37,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:37,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:37,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:37,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:56:37,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 18:56:37,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:37,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:37,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 18:56:37,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:38,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:38,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:38,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:38,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:38,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:38,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:56:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:38,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:38,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:38,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:38,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:38,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:38,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:38,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:38,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:38,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:56:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:38,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:38,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:38,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:38,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:38,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:38,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:38,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:38,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:38,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:38,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:38,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:38,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:38,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:38,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:38,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:38,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:38,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728945412] [2020-10-12 18:56:38,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:38,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:56:38,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275921128] [2020-10-12 18:56:38,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:56:38,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:38,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:56:38,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:56:38,230 INFO L87 Difference]: Start difference. First operand 730 states and 1110 transitions. Second operand 14 states. [2020-10-12 18:56:38,448 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:38,954 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:56:39,141 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:39,327 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:40,095 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:42,115 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:42,303 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:42,486 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:42,699 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:42,884 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:46,483 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:46,708 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:56:49,065 INFO L93 Difference]: Finished difference Result 3393 states and 5309 transitions. [2020-10-12 18:56:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-10-12 18:56:49,072 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2020-10-12 18:56:49,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:56:49,094 INFO L225 Difference]: With dead ends: 3393 [2020-10-12 18:56:49,095 INFO L226 Difference]: Without dead ends: 2735 [2020-10-12 18:56:49,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2037 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1125, Invalid=4727, Unknown=0, NotChecked=0, Total=5852 [2020-10-12 18:56:49,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2020-10-12 18:56:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 1905. [2020-10-12 18:56:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2020-10-12 18:56:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2960 transitions. [2020-10-12 18:56:49,238 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2960 transitions. Word has length 95 [2020-10-12 18:56:49,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:56:49,239 INFO L479 AbstractCegarLoop]: Abstraction has 1905 states and 2960 transitions. [2020-10-12 18:56:49,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:56:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2960 transitions. [2020-10-12 18:56:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-12 18:56:49,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:56:49,242 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:56:49,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:56:49,243 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:56:49,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:56:49,243 INFO L82 PathProgramCache]: Analyzing trace with hash 420480302, now seen corresponding path program 1 times [2020-10-12 18:56:49,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:56:49,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [716726342] [2020-10-12 18:56:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:56:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:49,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:49,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:49,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:51,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 18:56:54,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-12 18:56:54,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,477 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:56:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:56:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:56:54,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:56:54,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:56:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:56:54,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 18:56:54,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:56:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:56:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:56:54,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:56:54,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:56:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:56:54,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:56:54,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:56:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:54,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:54,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:56:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:54,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:54,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:54,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:56:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:56:54,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:56:54,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:56:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:56:54,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:56:54,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:56:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:56:54,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:56:54,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:56:54,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:56:54,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:56:54,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:56:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:56:54,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [716726342] [2020-10-12 18:56:54,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:56:54,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:56:54,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201477568] [2020-10-12 18:56:54,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:56:54,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:56:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:56:54,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:56:54,891 INFO L87 Difference]: Start difference. First operand 1905 states and 2960 transitions. Second operand 14 states. [2020-10-12 18:56:55,111 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:55,573 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:56:55,754 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:55,933 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:56:57,304 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:56:58,372 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:56:58,546 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:58,766 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:56:58,963 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:56:59,182 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:04,038 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:04,271 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:06,119 INFO L93 Difference]: Finished difference Result 6296 states and 9879 transitions. [2020-10-12 18:57:06,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-10-12 18:57:06,122 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 96 [2020-10-12 18:57:06,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:06,150 INFO L225 Difference]: With dead ends: 6296 [2020-10-12 18:57:06,151 INFO L226 Difference]: Without dead ends: 4490 [2020-10-12 18:57:06,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1926 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1105, Invalid=4595, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:57:06,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4490 states. [2020-10-12 18:57:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4490 to 3627. [2020-10-12 18:57:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3627 states. [2020-10-12 18:57:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3627 states to 3627 states and 5691 transitions. [2020-10-12 18:57:06,414 INFO L78 Accepts]: Start accepts. Automaton has 3627 states and 5691 transitions. Word has length 96 [2020-10-12 18:57:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:06,415 INFO L479 AbstractCegarLoop]: Abstraction has 3627 states and 5691 transitions. [2020-10-12 18:57:06,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:57:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3627 states and 5691 transitions. [2020-10-12 18:57:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 18:57:06,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:06,418 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:06,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:57:06,419 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:06,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:06,420 INFO L82 PathProgramCache]: Analyzing trace with hash 175477154, now seen corresponding path program 1 times [2020-10-12 18:57:06,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:06,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063831327] [2020-10-12 18:57:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:06,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:06,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-12 18:57:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-12 18:57:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:11,640 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:11,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:57:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:11,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:11,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:11,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:11,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:11,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:11,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:11,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:57:11,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:11,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:57:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:11,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:11,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:11,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:11,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:11,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:11,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:57:11,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:11,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:11,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:57:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:12,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-12 18:57:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:12,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:12,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:57:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:12,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:57:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:57:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:12,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063831327] [2020-10-12 18:57:12,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:12,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:57:12,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500712296] [2020-10-12 18:57:12,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:57:12,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:12,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:57:12,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:57:12,102 INFO L87 Difference]: Start difference. First operand 3627 states and 5691 transitions. Second operand 14 states. [2020-10-12 18:57:12,372 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:12,799 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:12,965 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:13,138 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:57:15,409 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:57:15,596 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:15,806 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:16,056 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:16,265 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:20,805 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-12 18:57:21,075 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2020-10-12 18:57:23,531 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:23,823 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:57:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:28,152 INFO L93 Difference]: Finished difference Result 11469 states and 18359 transitions. [2020-10-12 18:57:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-10-12 18:57:28,154 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2020-10-12 18:57:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:28,211 INFO L225 Difference]: With dead ends: 11469 [2020-10-12 18:57:28,212 INFO L226 Difference]: Without dead ends: 7993 [2020-10-12 18:57:28,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2464 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1385, Invalid=5421, Unknown=0, NotChecked=0, Total=6806 [2020-10-12 18:57:28,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2020-10-12 18:57:29,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 6524. [2020-10-12 18:57:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6524 states. [2020-10-12 18:57:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6524 states to 6524 states and 10273 transitions. [2020-10-12 18:57:29,027 INFO L78 Accepts]: Start accepts. Automaton has 6524 states and 10273 transitions. Word has length 97 [2020-10-12 18:57:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:29,028 INFO L479 AbstractCegarLoop]: Abstraction has 6524 states and 10273 transitions. [2020-10-12 18:57:29,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:57:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6524 states and 10273 transitions. [2020-10-12 18:57:29,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 18:57:29,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:29,032 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:29,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:57:29,033 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:29,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:29,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2003881633, now seen corresponding path program 1 times [2020-10-12 18:57:29,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:29,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631944614] [2020-10-12 18:57:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:29,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:29,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:29,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:29,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:29,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:31,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 18:57:34,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:57:34,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:57:34,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-12 18:57:34,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:57:34,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,266 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:34,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:34,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:57:34,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:34,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:34,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:34,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:34,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 18:57:34,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:34,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:34,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 18:57:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:34,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:34,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:34,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:57:34,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:57:34,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:57:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:57:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:57:34,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:57:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:34,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:34,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:34,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:34,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:57:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:34,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:34,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:57:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:34,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:34,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:34,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:34,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:34,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:34,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:34,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:34,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:34,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:34,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631944614] [2020-10-12 18:57:34,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:34,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 18:57:34,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462101408] [2020-10-12 18:57:34,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 18:57:34,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:34,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 18:57:34,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-12 18:57:34,530 INFO L87 Difference]: Start difference. First operand 6524 states and 10273 transitions. Second operand 9 states. [2020-10-12 18:57:34,708 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-12 18:57:36,810 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-12 18:57:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:37,204 INFO L93 Difference]: Finished difference Result 20337 states and 32303 transitions. [2020-10-12 18:57:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:57:37,205 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-10-12 18:57:37,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:37,282 INFO L225 Difference]: With dead ends: 20337 [2020-10-12 18:57:37,282 INFO L226 Difference]: Without dead ends: 14768 [2020-10-12 18:57:37,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:57:37,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14768 states. [2020-10-12 18:57:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14768 to 12732. [2020-10-12 18:57:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12732 states. [2020-10-12 18:57:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12732 states to 12732 states and 20116 transitions. [2020-10-12 18:57:38,207 INFO L78 Accepts]: Start accepts. Automaton has 12732 states and 20116 transitions. Word has length 99 [2020-10-12 18:57:38,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:38,207 INFO L479 AbstractCegarLoop]: Abstraction has 12732 states and 20116 transitions. [2020-10-12 18:57:38,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 18:57:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 12732 states and 20116 transitions. [2020-10-12 18:57:38,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-12 18:57:38,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:38,211 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:38,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:57:38,213 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:38,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:38,213 INFO L82 PathProgramCache]: Analyzing trace with hash 322984095, now seen corresponding path program 1 times [2020-10-12 18:57:38,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:38,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842696911] [2020-10-12 18:57:38,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:38,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:38,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-12 18:57:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,415 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:43,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:43,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:57:43,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:43,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 18:57:43,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:43,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:43,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:57:43,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:43,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:57:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:57:43,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:57:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:43,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:43,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:43,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:43,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:43,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:43,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:43,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:43,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:43,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842696911] [2020-10-12 18:57:43,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:43,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:57:43,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892358224] [2020-10-12 18:57:43,689 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:57:43,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:43,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:57:43,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:57:43,690 INFO L87 Difference]: Start difference. First operand 12732 states and 20116 transitions. Second operand 10 states. [2020-10-12 18:57:43,978 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:46,093 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:57:46,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:46,758 INFO L93 Difference]: Finished difference Result 33203 states and 52637 transitions. [2020-10-12 18:57:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 18:57:46,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 99 [2020-10-12 18:57:46,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:46,865 INFO L225 Difference]: With dead ends: 33203 [2020-10-12 18:57:46,865 INFO L226 Difference]: Without dead ends: 20655 [2020-10-12 18:57:46,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:57:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20655 states. [2020-10-12 18:57:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20655 to 16978. [2020-10-12 18:57:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16978 states. [2020-10-12 18:57:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16978 states to 16978 states and 26672 transitions. [2020-10-12 18:57:48,812 INFO L78 Accepts]: Start accepts. Automaton has 16978 states and 26672 transitions. Word has length 99 [2020-10-12 18:57:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:57:48,812 INFO L479 AbstractCegarLoop]: Abstraction has 16978 states and 26672 transitions. [2020-10-12 18:57:48,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:57:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 16978 states and 26672 transitions. [2020-10-12 18:57:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-12 18:57:48,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:57:48,819 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:57:48,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:57:48,820 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:57:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:57:48,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1227231262, now seen corresponding path program 1 times [2020-10-12 18:57:48,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:57:48,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487834122] [2020-10-12 18:57:48,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:57:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:49,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:50,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:50,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:53,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:57:53,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,035 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:57:54,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:57:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:57:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:57:54,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:57:54,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-12 18:57:54,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:57:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:57:54,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:57:54,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:57:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:57:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:57:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:57:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:57:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:57:54,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-12 18:57:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:57:54,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:54,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:57:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:57:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:57:54,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:57:54,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:57:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:57:54,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:57:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:57:54,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487834122] [2020-10-12 18:57:54,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:57:54,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:57:54,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977868104] [2020-10-12 18:57:54,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:57:54,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:57:54,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:57:54,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:57:54,333 INFO L87 Difference]: Start difference. First operand 16978 states and 26672 transitions. Second operand 10 states. [2020-10-12 18:57:54,529 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:57:56,630 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:57:58,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:57:58,258 INFO L93 Difference]: Finished difference Result 48562 states and 77223 transitions. [2020-10-12 18:57:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 18:57:58,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-12 18:57:58,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:57:58,397 INFO L225 Difference]: With dead ends: 48562 [2020-10-12 18:57:58,397 INFO L226 Difference]: Without dead ends: 31747 [2020-10-12 18:57:58,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:57:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31747 states. [2020-10-12 18:58:00,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31747 to 26149. [2020-10-12 18:58:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26149 states. [2020-10-12 18:58:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 40827 transitions. [2020-10-12 18:58:00,084 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 40827 transitions. Word has length 101 [2020-10-12 18:58:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:00,085 INFO L479 AbstractCegarLoop]: Abstraction has 26149 states and 40827 transitions. [2020-10-12 18:58:00,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:58:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 40827 transitions. [2020-10-12 18:58:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:58:00,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:00,090 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:00,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:58:00,090 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash -381120678, now seen corresponding path program 1 times [2020-10-12 18:58:00,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:00,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1673663666] [2020-10-12 18:58:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:00,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:00,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:01,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:58:05,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:58:05,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:58:05,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:58:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:58:05,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:58:05,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,433 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:05,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:05,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 18:58:05,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:58:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 18:58:05,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:58:05,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:05,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:05,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:05,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 165 [2020-10-12 18:58:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:58:05,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:58:05,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:58:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:58:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:05,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:05,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:58:05,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:05,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:58:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:05,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:05,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:58:05,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:05,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:05,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:58:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:06,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:06,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:06,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:06,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:06,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:06,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1673663666] [2020-10-12 18:58:06,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:06,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:58:06,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7391589] [2020-10-12 18:58:06,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:58:06,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:06,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:58:06,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:58:06,028 INFO L87 Difference]: Start difference. First operand 26149 states and 40827 transitions. Second operand 14 states. [2020-10-12 18:58:06,231 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:06,407 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:06,872 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:07,263 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:10,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:10,739 INFO L93 Difference]: Finished difference Result 72085 states and 113042 transitions. [2020-10-12 18:58:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:58:10,739 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 104 [2020-10-12 18:58:10,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:10,966 INFO L225 Difference]: With dead ends: 72085 [2020-10-12 18:58:10,967 INFO L226 Difference]: Without dead ends: 51433 [2020-10-12 18:58:11,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-12 18:58:11,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51433 states. [2020-10-12 18:58:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51433 to 26215. [2020-10-12 18:58:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26215 states. [2020-10-12 18:58:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26215 states to 26215 states and 40944 transitions. [2020-10-12 18:58:12,726 INFO L78 Accepts]: Start accepts. Automaton has 26215 states and 40944 transitions. Word has length 104 [2020-10-12 18:58:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:12,726 INFO L479 AbstractCegarLoop]: Abstraction has 26215 states and 40944 transitions. [2020-10-12 18:58:12,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:12,727 INFO L276 IsEmpty]: Start isEmpty. Operand 26215 states and 40944 transitions. [2020-10-12 18:58:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:58:12,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:12,730 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:12,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:58:12,730 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:12,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:12,731 INFO L82 PathProgramCache]: Analyzing trace with hash -861685632, now seen corresponding path program 1 times [2020-10-12 18:58:12,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:12,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014743649] [2020-10-12 18:58:12,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:12,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:58:17,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 18:58:17,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:58:17,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:58:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:58:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 18:58:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:17,940 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:17,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:17,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:58:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:17,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-12 18:58:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:18,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:58:18,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 18:58:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:58:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:58:18,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:18,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:58:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:18,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-12 18:58:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:18,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:18,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:18,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:18,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:18,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:18,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014743649] [2020-10-12 18:58:18,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:18,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:58:18,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067436840] [2020-10-12 18:58:18,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:58:18,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:18,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:58:18,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:58:18,234 INFO L87 Difference]: Start difference. First operand 26215 states and 40944 transitions. Second operand 14 states. [2020-10-12 18:58:18,610 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 160 [2020-10-12 18:58:18,783 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:19,242 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:19,790 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 162 [2020-10-12 18:58:19,938 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-12 18:58:20,105 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84 [2020-10-12 18:58:20,265 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2020-10-12 18:58:20,545 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-10-12 18:58:20,905 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2020-10-12 18:58:21,459 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2020-10-12 18:58:21,608 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2020-10-12 18:58:21,759 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-10-12 18:58:21,980 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-10-12 18:58:22,308 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-10-12 18:58:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:24,246 INFO L93 Difference]: Finished difference Result 70084 states and 110171 transitions. [2020-10-12 18:58:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 18:58:24,246 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 104 [2020-10-12 18:58:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:24,429 INFO L225 Difference]: With dead ends: 70084 [2020-10-12 18:58:24,429 INFO L226 Difference]: Without dead ends: 49374 [2020-10-12 18:58:24,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-10-12 18:58:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49374 states. [2020-10-12 18:58:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49374 to 26094. [2020-10-12 18:58:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26094 states. [2020-10-12 18:58:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26094 states to 26094 states and 40743 transitions. [2020-10-12 18:58:26,502 INFO L78 Accepts]: Start accepts. Automaton has 26094 states and 40743 transitions. Word has length 104 [2020-10-12 18:58:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:26,502 INFO L479 AbstractCegarLoop]: Abstraction has 26094 states and 40743 transitions. [2020-10-12 18:58:26,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 26094 states and 40743 transitions. [2020-10-12 18:58:26,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:58:26,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:26,504 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:26,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:58:26,505 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:26,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:26,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1142490010, now seen corresponding path program 1 times [2020-10-12 18:58:26,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:26,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874575387] [2020-10-12 18:58:26,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:26,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:26,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:26,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:27,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:30,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:58:31,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:58:31,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:58:31,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-12 18:58:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 18:58:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,725 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:31,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:31,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:31,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 18:58:31,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:31,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:31,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:31,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:31,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:31,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:58:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:58:31,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:58:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:58:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:31,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:31,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:31,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:31,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:58:31,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:31,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:58:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:58:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:32,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:58:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:58:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:32,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:58:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:32,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:32,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:32,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:58:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:58:32,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:58:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:58:32,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:58:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:32,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874575387] [2020-10-12 18:58:32,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:32,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:58:32,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228017999] [2020-10-12 18:58:32,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:58:32,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:32,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:58:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:58:32,120 INFO L87 Difference]: Start difference. First operand 26094 states and 40743 transitions. Second operand 14 states. [2020-10-12 18:58:32,353 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:32,947 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:33,140 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:33,919 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:35,446 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:38,142 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:38,330 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:38,962 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:58:40,705 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:58:41,296 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:58:41,540 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:41,805 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:44,868 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:58:46,310 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:46,640 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:58:47,075 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-12 18:58:48,083 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:58:48,788 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:48,960 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:58:50,005 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:58:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:58:51,047 INFO L93 Difference]: Finished difference Result 57486 states and 90232 transitions. [2020-10-12 18:58:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-10-12 18:58:51,048 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 104 [2020-10-12 18:58:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:58:51,147 INFO L225 Difference]: With dead ends: 57486 [2020-10-12 18:58:51,147 INFO L226 Difference]: Without dead ends: 43801 [2020-10-12 18:58:51,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5343 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1895, Invalid=11215, Unknown=0, NotChecked=0, Total=13110 [2020-10-12 18:58:51,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43801 states. [2020-10-12 18:58:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43801 to 35384. [2020-10-12 18:58:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35384 states. [2020-10-12 18:58:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35384 states to 35384 states and 55434 transitions. [2020-10-12 18:58:54,155 INFO L78 Accepts]: Start accepts. Automaton has 35384 states and 55434 transitions. Word has length 104 [2020-10-12 18:58:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:58:54,156 INFO L479 AbstractCegarLoop]: Abstraction has 35384 states and 55434 transitions. [2020-10-12 18:58:54,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:58:54,156 INFO L276 IsEmpty]: Start isEmpty. Operand 35384 states and 55434 transitions. [2020-10-12 18:58:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-12 18:58:54,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:58:54,158 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:58:54,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:58:54,158 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:58:54,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:58:54,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1175086103, now seen corresponding path program 1 times [2020-10-12 18:58:54,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:58:54,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012056896] [2020-10-12 18:58:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:58:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:54,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:56,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:58,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4813 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-12 18:58:58,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-12 18:58:59,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,176 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:58:59,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:58:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:58:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:59,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:58:59,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:58:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:59,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 18:58:59,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:58:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:58:59,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:58:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:58:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:58:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:58:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:59,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:59,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:58:59,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:59,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:58:59,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:58:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:58:59,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:58:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:58:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:58:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:58:59,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:58:59,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 18:58:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:58:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:58:59,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012056896] [2020-10-12 18:58:59,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:58:59,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 18:58:59,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119489758] [2020-10-12 18:58:59,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:58:59,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:58:59,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:58:59,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:58:59,426 INFO L87 Difference]: Start difference. First operand 35384 states and 55434 transitions. Second operand 10 states. [2020-10-12 18:58:59,617 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:01,621 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 156 [2020-10-12 18:59:02,210 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-12 18:59:02,586 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:59:02,962 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2020-10-12 18:59:06,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:06,153 INFO L93 Difference]: Finished difference Result 116020 states and 182182 transitions. [2020-10-12 18:59:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 18:59:06,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-12 18:59:06,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:06,365 INFO L225 Difference]: With dead ends: 116020 [2020-10-12 18:59:06,365 INFO L226 Difference]: Without dead ends: 80732 [2020-10-12 18:59:06,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-10-12 18:59:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80732 states. [2020-10-12 18:59:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80732 to 70252. [2020-10-12 18:59:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70252 states. [2020-10-12 18:59:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70252 states to 70252 states and 107625 transitions. [2020-10-12 18:59:11,842 INFO L78 Accepts]: Start accepts. Automaton has 70252 states and 107625 transitions. Word has length 104 [2020-10-12 18:59:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:11,843 INFO L479 AbstractCegarLoop]: Abstraction has 70252 states and 107625 transitions. [2020-10-12 18:59:11,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:59:11,843 INFO L276 IsEmpty]: Start isEmpty. Operand 70252 states and 107625 transitions. [2020-10-12 18:59:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-12 18:59:11,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:11,846 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:11,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:59:11,846 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:11,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:11,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1082941622, now seen corresponding path program 1 times [2020-10-12 18:59:11,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:11,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303897643] [2020-10-12 18:59:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:11,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:11,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:11,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:12,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:12,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:12,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:16,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-12 18:59:16,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:59:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,074 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-12 18:59:17,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:17,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:59:17,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:17,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 18:59:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:59:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:17,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 18:59:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 18:59:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:17,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-12 18:59:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:17,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:59:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:59:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:59:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:59:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:17,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303897643] [2020-10-12 18:59:17,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:17,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:59:17,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924463830] [2020-10-12 18:59:17,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:59:17,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:17,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:59:17,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:59:17,376 INFO L87 Difference]: Start difference. First operand 70252 states and 107625 transitions. Second operand 14 states. [2020-10-12 18:59:17,619 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:59:18,212 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:18,422 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:19,124 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:20,588 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:59:21,790 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-12 18:59:23,398 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-12 18:59:24,198 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:24,410 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:59:24,637 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:24,833 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 18:59:25,073 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:25,311 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-12 18:59:25,488 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 18:59:25,702 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-12 18:59:25,890 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:33,868 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-12 18:59:34,059 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-12 18:59:34,284 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-12 18:59:34,485 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 158